1
Best Overall 
RENPHO Smart Body Analyzer Scale
Our strongest all-around pick for value, reliability, and everyday performance.
Accurate readings with 8 electrodes.
Easy tracking via smart app integration.
Supports up to 400lbs capacity.
10 Best Smart Scale 2026
We compared the top Smart Scale products so you can quickly spot the strongest options for value, features, and everyday performance.
2
Popular 
MorphoScan Nova Smart Body Scale
A balanced choice for shoppers who want strong features without overspending.
Full-color TFT LCD makes readings clear.
8-electrode tech offers precise body metrics.
Rechargeable design is eco-friendly and convenient.
3
Best Deal 
FITINDEX Smart Body Composition Scale
A smart value pick for buyers focused on savings and practical performance.
Precise 8-electrode body composition analysis.
Large platform supports up to 400 lbs.
Offers detailed segmental muscle analysis.
4
FITINDEX 2026 Smart Body Composition Scale
Accurate 8-electrode body composition analysis.
Larger platform for stable standing.
Easy Bluetooth connectivity with fitness apps.
5
Wyze Scale Ultra BodyScan Smart Scale
Offers detailed segmental body composition analysis.
Connects easily via Wi-Fi and Bluetooth.
Includes a convenient handle for better accuracy.
6
Wyze Scale Ultra
Tracks multiple health metrics accurately.
User-friendly app with easy syncing.
Supports multiple users seamlessly.
7
RENPHO Elis 1 Smart Body Weight Scale
Syncs with smartphone app for easy tracking.
Measures 13 essential body composition metrics.
Supports multiple user profiles for family use.
8
Etekcity Smart Body Weight Scale
Measures BMI and muscle mass composition accurately.
Syncs seamlessly with Apple Health app.
Eligible for FSA and HSA benefits.
9
Etekcity Smart Body Weight Scale
Tracks 13 health metrics accurately.
Supports offline mode for convenience.
Large display for easy reading.
10
GE Smart Body Composition Scale
Provides comprehensive 27 health measurements.
Highly accurate with 8-electrode technology.
Connects effortlessly via Bluetooth for easy tracking.
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Overview
A smart scale combines basic weight measurement with features such as a companion app, built-in display, or both. Many models utilize bioelectrical impedance analysis (BIA), where a small electrical current passes through the body to estimate various health metrics like body fat, muscle mass, water content, bone mass, visceral fat, and related data. While weight measurement is direct, most body composition figures are derived through algorithms.
When choosing a smart scale, focus on practical features rather than the number of metrics offered. Ensure it has safe household-use limits, a stable and dry surface, a suitable capacity, clear and measurable weight resolution, and a straightforward weight-only mode for situations where BIA isn't appropriate. Offline weighing capability is useful because basic weight readings should remain accessible even if your phone, account, or cloud services are unavailable. For app-enabled models, verify if data can be exported in useful formats, confirm that account and data deletion methods are documented, and check how health information is stored or shared.
Top Smart Scale
- RENPHO Smart Body Analyzer Scale
- MorphoScan Nova Smart Body Scale
- FITINDEX Smart Body Composition Scale
Be cautious of misleading precision claims. Display resolutions such as 0.05 kg, 0.1 lb, or 1.6 ounces relate to measurement resolution, not accuracy or reproducibility. A scale rated for 400 pounds does not guarantee consistent performance near that limit or with off-center weights. Review data indicates no independent calibration reports exist for specific models. Regarding body composition metrics—like 50+ measurements, segmental analysis, visceral-fat scores, metabolic age, or heart rate—these can sound clinical but are typically estimates. Reliable validation requires independent studies comparing the scale’s readings to reference methods like DXA, MRI, or four-compartment models, with analysis of individual-level agreement (e.g., Bland–Altman analysis). Marketing claims or average comparisons are insufficient evidence.
Safety and regulatory claims should be supported by specific model documentation. An FCC certification indicates wireless compliance but does not confirm safety of the glass platform, battery, load capacity, measurement accuracy, or medical validity. Consumers seeking comprehensive safety evidence should verify if the model is listed with UL Product iQ or Intertek ETL. FDA registration, clearance, or approval should not be assumed to validate medical accuracy; scales marketed as medical devices must meet stricter standards. Environmental claims, such as recycled content, need certification proof; similarly, considerations around battery recycling, product repair, availability of replacement parts, and warranty terms influence the product’s environmental impact and potential to reduce e-waste.
Safety notes are consistent across products: pregnant users and individuals with pacemakers, implanted electronic devices, portable ECG devices, artificial joints, osteoporosis, or other metallic implants should avoid using standard BIA mode. Alternatives such as weight-only mode, footwear-based measurements, Zero-Current Mode, or avoiding the scale if these options are not provided are recommended. Manuals often advise against use by young children or specify limitations for children under age eight or ten. None of the body composition scales have been independently validated for clinical decision-making. Use them solely to track personal trends over time, not for diagnosis, treatment, medication management, or medical decisions. Always keep feet and the scale platform dry, avoid cracked glass or uneven flooring, and adhere to the specified weight limit.
Integrity
These topics distinguish between a scale that simply allows cautious household monitoring and one whose metrics, data practices, safety assurances, or environmental claims are hard to verify. The scores are based on the product reviews provided; higher scores denote more thoroughly documented performance in that area, not clinical approval.
HHealth & Safety
Safe and health-promoting usage
This assesses whether the product positions itself as a trend-following wellness tool rather than a diagnostic or therapeutic device, and whether its instructions discourage harmful actions. Products that score highly clearly specify that they are for informational purposes only, use nonmedical language, recommend consulting healthcare professionals before making any health-related decisions, and provide practical guidelines on surface and load limits. Lower-scoring products tend to use more vague boundaries or leave more room for misinterpretation of health data.
Warnings and Contraindications for BIA
This assesses whether individuals for whom electrical-impedance measurements might be inappropriate receive clear, specific warnings and an accessible, weight-only option. Manuals for smart scales frequently mention conditions such as pregnancy, pacemakers, implanted or portable electronic devices, artificial joints, osteoporosis, and young children. The highest scores awarded were 91 and 90, while lower scores, like 68, lacked equally comprehensive or prominent protections.
Safety considerations for physical handling, charging, and batteries
This addresses risks such as broken glass, falls, overload, moisture, charging, overheating, and battery hazards. Achieving a high score requires more than just reasonable instructions: it favors the use of third-party safety evidence specific to the exact model, safe charging designs, and no unresolved safety issues. The products provided typically did not have UL or ETL certifications, so scores in the high 70s mainly indicate better instructions or battery configurations rather than full product certification.
Privacy and Control of Health Data
This assesses whether the app minimizes the collection of sensitive data, provides clear explanations about it, restricts data sharing, and allows users to export or permanently delete their records and accounts. It is important because body weight and composition are health-related information often stored in cloud accounts and connected to personal identity or device identifiers. Scores ranged from 48 to 84: higher-scoring apps documented options for exporting and deleting data, whereas lower-scoring ones engaged in broader tracking or offered less reassuring disclosures.
EEcology
Materials and Their Environmental Impact at the End of Their Lifecycle
This assessment evaluates claims related to recycled materials and packaging, battery design, and practical methods for recycling electronics and batteries. Removable AAA cells can be taken out and recycled separately, whereas sealed rechargeable batteries help decrease the use of disposable cells but may complicate the recovery process of the entire product as the battery ages. The scores provided generally ranged from approximately 60 to 73, primarily because none of the reviewed products demonstrated a strong verified record of recycled content or effective take-back programs.
Designed for durability with minimal waste
This assesses whether the scale can maintain its usefulness through durable construction, replaceable or long-lasting power components, parts or support, warranty coverage, and minimal consumable requirements. Products that score highly typically feature replaceable batteries paired with a two-year warranty or more transparent support options. Conversely, low scores are associated with sealed batteries, ambiguous repair procedures, limited warranties, or lack of spare parts documentation.
EEvidence
Accuracy of body composition measurements compared to reference methods
This examines whether the specific measurements of body fat, lean mass, and segmental estimates from the product were independently compared to reference methods such as DXA, MRI, or a four-compartment approach using individual-level agreement statistics. This is particularly significant because BIA results are estimates influenced by hydration levels and measurement conditions. The scores ranged from 62 to 70; however, none of the provided body scales included the model-specific validation evidence required for clinical reliability.
Accurate and consistent weight measurements
This assesses accuracy, repeatability, stability across different platform positions, and performance within the specified capacity using traceable calibration weights. It's important to note that a displayed increment does not necessarily equate to accuracy. Although the provided scores ranged from 68 to 75, reviews indicated that there was no independent calibration report available for the body scales. Therefore, higher scores reflect better documented specifications or guidance rather than independently verified precision.
Honest statements about health benefits and accuracy
This assesses whether listings clearly differentiate between actual weight measurements and estimated calculations, and whether they avoid presenting visceral fat, metabolic age, calorie counts, muscle mass, or heart rate figures as medical diagnoses. High-scoring products utilize qualified, reference-based language and refrain from making unsupported claims of precision. The scores ranged from 55 to 84; lower scores were linked to conflicting metric data or marketing language that was not supported by model-specific validation.
Authentic certifications and compliance claims
This assesses whether safety markings, wireless authorization, and medical status claims can be precisely linked to the specific product within independent records. FCC records verify radio authorization but do not confirm electrical safety, measurement accuracy, or medical approval. The provided scores ranged from 70 to 87, primarily based on traceable FCC documentation, while exact-model UL or ETL listings were typically not available.
Durability of the app and access to your history
This assesses whether weighing functions effectively without relying continuously on the cloud and if records remain accessible when an app, account, or service is modified. Important factors include offline weighing capabilities, local measurements, CSV export options, supported operating systems, and a clear support policy. The scoring ranged from 69 to 84. More robust products provided offline readings and export options, while less capable ones relied more on cloud history or lacked a documented export method.
Materials and Their Environmental Impact at the End of Their Lifecycle
This evidence topic is not duplicated in this section; the relevant environmental measure is addressed earlier under “Materials and end-of-life impact.” Typically, the products provided only include manufacturer guidance on battery disposal, without any independently verified claims of recycled materials, packaging certification, or take-back programs. Consumers should regard vague sustainability claims as unsubstantiated unless supported by an external certification or a documented recycling initiative.
#1 - Best Overall
RENPHO Smart Body Analyzer Scale
Buyer Score 99/100 Integrity Score 78/100 RENPHO
Overview
The most important safety feature is the product’s own manual. It states that the scale is intended for household use only and not for diagnosis or treatment. The manual also directs certain higher-risk groups to use the weight-only mode with shoes on. Additionally, it specifies that body composition measurements require dry, bare feet and warns against misuse such as standing on the edges, jumping, exposure to moisture, or overloading the device. The weight capacity is listed as 400 pounds. Although there is a model-specific FDA device identification record under an exempt body composition analyzer code, this does not indicate FDA clearance. The environmental features are simple but effective. The scale uses four removable AAA batteries, and the manual advises against recharging, burning, or improperly discarding used batteries. This encourages separate recycling of batteries, though there is no verified claim of recycled content, no participation in US electronics take-back programs, and no available repair parts pathways. The product comes with a documented one-year limited warranty from the manufacturer. No specific recalls or safety actions related to this model have been found from the CPSC or other public safety sources.
What works
- No standalone, model-specific research comparing its fat, lean mass, or segmental measurements with DXA, MRI, or four-compartment methods was found. Therefore, these composition figures should be considered as individual trend estimates.
- No individual, model-specific calibrated mass report was found to verify accuracy, repeatability, or off-center weight performance beyond the specified 0.2-pound division.
- The app manages health and fitness information, personal details, device identifiers, and usage statistics. According to Apple's privacy label, this usage data may also be used to track users across other apps and websites from different companies.
- The scale is not waterproof and features a glass platform. The manufacturer describes it as a precise, delicate instrument. It should only be used in dry conditions, placed on a hard, flat surface, and you should avoid stepping on its edges.
- The one-year limited warranty is documented; however, no repair parts catalog, repair instructions, recycled-material claim, or US product take-back program could be found.
What does not
- The manufacturer provides exceptionally detailed safety guidelines for BIA usage, such as instructions to be used only with weight measurements, with shoes on, and specific precautions for pregnant women, individuals with pacemakers, portable ECG devices, metal implants, osteoporosis, and children under 8 years old.
- The manual distinguishes wellness monitoring from medical diagnosis and notes that body composition measurements are intended as reference data only, not replacements for professional clinical guidance.
- The product features model-specific regulatory traceability. Its FCC identifier is recorded in external testing documents, and the FDA device database classifies this model as an exempt body-composition analyzer.
- RENPHO allows users to export their in-app historical data, and both the Apple and Google app listings mention that data deletion requests can be made.
- Four standard AAA batteries can be easily replaced by the user, eliminating the need for a sealed rechargeable battery and preventing it from becoming a premature point of failure.
Who is it for
This product is ideal for adults who want to regularly monitor their weight at home and keep a consistent record of their body composition trends. It is particularly suitable for users who can place it on a hard, dry surface, enter an accurate profile, and perform measurements under similar conditions, such as before breakfast. With a weight capacity of 400 pounds and a large platform, it accommodates many adult users. Additionally, it appeals to those who value keeping a history through the associated app and wish to export specific measurements, understanding that the body composition data are estimates and not clinical diagnostics.
Who is it not for
This device is not suitable for individuals requiring a detailed diagnostic assessment of body fat, muscle mass, visceral fat, or health risks. Those who are pregnant, under 8 years old, have a pacemaker, portable ECG, artificial joints, osteoporosis, or other metal implants should follow the manual’s instructions to weigh themselves with shoes on and without using BIA. It is also not ideal for use in wet environments such as bathrooms, or for households that need a waterproof or easily repairable device. Additionally, it may not be appropriate for users concerned about privacy, as it involves sharing health data with an app ecosystem that collects multiple data types and may track usage across different applications.
#2 - Popular
MorphoScan Nova Smart Body Scale
Buyer Score 96/100 Integrity Score 74/100 RENPHO
Overview
The product provides clear, model-specific safety instructions. Its manual states that BIA results are for reference only and offers a weight-only method for pregnancy and situations involving implanted or metal devices. It also specifies a 5 V, 0.5 A charging input, recommends using the included cable, advises inspecting for damage, and suggests placing the device on a hard, dry, level surface. The exact model number is listed in the FDA's device identifier database, which confirms its commercial distribution but does not indicate FDA approval for diagnostic purposes. Additionally, its radio functionality is authorized by the FCC with a corresponding record. The rechargeable 1,000 mAh battery helps reduce disposable battery waste, and the manual includes language about proper disposal under WEEE regulations. However, the product lacks a battery removal procedure, a manufacturer take-back program, independently verified recycled-material claims, or specific UL or ETL listings for the exact model. RENPHO offers an 18-month warranty for purchases made directly on their website, but details regarding parts availability and repair support are not provided. A publicly available report from the CPSC about glass breakage involves a different RENPHO product—a glass scale—not this one.
What works
- No individual, model-specific research comparing its body-fat, muscle, or segmental measurements to DXA, MRI, or a four-compartment reference method has been identified.
- No independent laboratory report has been found to confirm the accuracy of weight measurements, the consistency of results, or the performance of the platform at the specified capacity.
- The safety instructions are reasonable, but there is no specific UL or ETL electrical safety certification for this model. Additionally, a different RENPHO glass scale has a publicly available CPSC incident report concerning shattering; however, this report does not pertain to this particular model.
- Marketing highlights over 50 metrics and addresses possible health risks. Additionally, a RENPHO regional product page mentions "medical-grade accuracy," even though the product manual states it is not intended for medical purposes.
- The app's Apple privacy label indicates that usage data might be utilized to monitor users across various other apps and websites from different companies.
What does not
- The manual explicitly states that body composition figures are intended as general reference data only and should not be used to diagnose or replace professional medical consultation.
- Certain BIA precautions include considerations for pregnancy, pacemakers, portable ECG devices, osteoporosis, artificial joints, metal implants, and children under the age of eight.
- The companion app records data exports by date range, while RENPHO handles requests for account deletion and removal of personal data.
- The specific product model is registered in the FDA's device identifier database, and the wireless version has obtained a corresponding FCC equipment authorization.
- A rechargeable battery eliminates the need for regular disposable battery replacements. According to RENPHO, the scale supports a maximum weight of 400 pounds and has a display precision of 0.2 pounds.
Who is it for
This device is ideal for an adult household seeking regular weight tracking along with optional body composition measurements. It can be used barefoot and safely supports a pull-up handle, making it user-friendly for those comfortable with a smartphone app. It is especially suitable for individuals who prefer on-device display and want to export their historical data from the app for personal monitoring. While the listed maximum weight capacity of 400 pounds may suit many adult users, this limit and the 0.2-pound measurement increments have not been independently tested or verified in a laboratory specifically for this product.
Who is it not for
It is not suitable for individuals looking for a diagnostic tool, clinically validated body fat measurement, or guidance to modify treatment, diet, or exercise without professional supervision. Pregnant women, children under eight, and individuals with pacemakers, portable ECG devices, osteoporosis, artificial joints, or other metal implants should avoid using the BIA function. The manual advises these groups to wear shoes and use the device solely for weighing purposes. Additionally, it may not meet the needs of buyers who require independently verified electrical certification, repair parts, replaceable batteries, or proven weighing accuracy.
#3 - Best Deal
FITINDEX Smart Body Composition Scale
Buyer Score 92/100 Integrity Score 80/100 FITINDEX
Overview
The safety documentation is notably detailed for a household device. It clarifies that the product is not intended for diagnostic purposes, states that body composition results are for reference only, and specifies a weight-only, shoes-on procedure for certain user groups to prevent BIA current exposure. It also advises users to stand on a hard, flat, dry surface, avoid stepping on the platform edges, check for damage, and keep the device dry. The Bluetooth device authorization is officially recorded by the FCC; however, this approval pertains to radio compliance and does not cover the overall electrical safety of the product. The scale is powered by three replaceable, non-rechargeable AAA batteries. The manual provides important battery safety tips, such as ensuring correct polarity, avoiding mixing different types of batteries, removing batteries during long periods of non-use, and disposing of depleted cells responsibly. Using replaceable batteries allows for replacing power sources without discarding the entire scale. Nevertheless, there is no verified claim regarding recycled battery content, packaging reduction initiatives, battery recycling programs, spare parts availability, or third-party environmental certifications specific to this model. The warranty period provided is one year.
What works
- There is no validation study specifically for this product comparing its estimates of body fat, muscle, segmental composition, visceral fat, and metabolic age against reference methods such as DXA, MRI, or a four-compartment model.
- The listed weight category does not match the verified accuracy. No independent, traceable calibration report for this product could be found.
- The manual provides thorough safety instructions; however, no specific UL or ETL electrical safety certification for the exact model was found.
- The application gathers health-related data associated with user identity, as indicated in its App Store privacy label. Additionally, the privacy policy allows for interest-based advertising and the sharing of information with service providers, partners, and affiliates.
- The scale operates with replaceable batteries and comes with a one-year warranty. However, there is no parts supply program, repair instructions, recycled-material certification, or take-back program available.
What does not
- The manual provides detailed guidelines regarding weight considerations for pregnancy, pacemakers, portable ECG devices, osteoporosis, artificial joints, and other types of metal implants.
- The specified capacity of 400 lbs and a display resolution of 0.2 lbs (or 0.05 kg) clearly define the operational limits.
- Guest Mode allows you to use the service without registering, but any records will only be stored on that specific device.
- The app provides documented instructions for exporting selected measurement history in CSV format, and its iOS listing indicates updates are scheduled through May 2026.
Who is it for
This product is ideal for adult households seeking easy weight monitoring along with optional body composition trend estimates. Users should understand that the non-weight metrics are generated through algorithms and are intended as reference points. It is designed for use on a dry, hard, level floor. The scale is especially suitable for those who want a handle for measuring posture, supports a maximum weight of 400 lbs, uses replaceable AAA batteries, and allows users to save selected history data as a CSV file. Additionally, Guest Mode is available for users who prefer not to create an app account for basic functionality.
Who is it not for
This device is not suitable for individuals who require clinical-grade measurements of body fat, lean mass, segmental muscle, visceral fat, or metabolic age for medical treatment decisions. No direct comparison has been made between this device and more precise methods such as DXA, MRI, or four-compartment analysis. Pregnant women, individuals with pacemakers, portable ECG devices, osteoporosis, artificial joints, or other metal implants should avoid using the body composition feature. The manual advises these users to weigh themselves only while wearing shoes. Additionally, the device is not appropriate for unsupervised young children, use in wet environments, handling broken glass, or for individuals needing verified electrical safety certification.
#4
FITINDEX 2026 Smart Body Composition Scale
Buyer Score 88/100 Integrity Score 75/100 FITINDEX
Overview
The primary health safeguard is the product manual, which states that the scale is intended for household use only and not for diagnosis or medical treatment. It notes that the body composition readings are for reference purposes and explicitly advises certain higher-risk groups to use only the weight measurement with shoes. The manual also instructs users to check for damage, keep the scale dry, stand centered, avoid stepping on the edges, and not to exceed the maximum weight limit of 400 pounds. The Bluetooth feature has an FCC equipment authorization, confirming radio operation but not ensuring product safety or measurement accuracy. The scale is powered by three removable AAA batteries, eliminating the need for sealed-battery waste. The manual warns against charging, heating, crushing, or burning the batteries and advises removing depleted cells promptly. There is no evidence of recycled material content, claims of reduced packaging, third-party electrical safety certification, or manufacturer take-back programs. The product includes a one-year warranty that may support ongoing use, but details on repair services and replacement parts are not provided.
What works
- There was no independent, model-specific validation available for body-fat, muscle, or segmental measurements against reference methods such as DXA, MRI, or a four-compartment approach.
- No independent laboratory report utilizing traceable test weights was found to verify the accuracy, repeatability, or off-center performance of the weight measurements.
- The app's privacy disclosures detail the collection of detailed body measurements, email addresses, identifiers, diagnostic data, and device-related information. Users can request data deletion; however, there is no evidence of data minimization practices.
- The product manual lacks UL or ETL certification, ingress protection rating, proof of recycled content, packaging details, a parts list, and information about a formal electronics take-back program.
- The one-year manufacturer warranty is beneficial; however, the manual advises users not to disassemble the product and does not specify repair parts or procedures.
What does not
- The manual provides specific precautions for BIA measurements and instructs higher-risk users to perform weight-only measurements while wearing shoes.
- Weight measurement is still accessible without needing to use body composition estimates or an app outcome.
- It uses three standard AAA batteries that can be replaced, eliminating the need for a permanently sealed rechargeable battery.
- This Bluetooth transmitter is certified under an FCC authorization specific to this product model.
- The app is still actively maintained in the major mobile app stores, and the developer has added the feature to export selected history as a CSV file.
Who is it for
This product is ideal for adult households seeking a large-platform, handle-equipped home scale for reliable weight measurement and basic body composition trend monitoring. It is best suited for individuals who can use it on a dry, hard, level surface, remain stationary while holding the handle, and understand that measurements of fat, muscle, visceral fat, and metabolic age are approximate estimates provided by the app. Additionally, it is suitable for users who prefer replaceable AAA batteries and wish to save specific weight data in CSV format.
Who is it not for
This device is not suitable for individuals seeking diagnostic, clinical, or personally validated body composition results. Pregnant women, children under 8 years old, and individuals with pacemakers, portable ECG devices, artificial joints, osteoporosis, or other implants listed should avoid using the impedance measurement feature and instead use the weight-only measurement option as instructed. Additionally, it should not be used in wet bathrooms, on carpeted or uneven floors, near strong electromagnetic equipment, or by buyers who require independently verified safety certification or products that are repairable with available parts.
#5
Wyze Scale Ultra BodyScan Smart Scale
Buyer Score 86/100 Integrity Score 75/100 WYZE SCALE
Overview
The most reliable health protection feature is the ability to disable bioelectrical impedance measurements and use the device solely as a weight scale. Wyze's manual also notes that certain groups—such as pregnant individuals, dialysis patients, those with edema or low bone density, people under 18 or over 65, and some highly trained users—may have inaccurate readings due to the composition of their body. While this is useful cautionary information, it does not replace the need for clinical validation. There are no records of a recall for this scale in the US recall database reviewed. Additionally, a separate Wyze camera recall planned for 2026 does not pertain to this product. The device operates on four replaceable AAA batteries instead of an integrated rechargeable pack, which can extend its lifespan and allow for easy battery removal for storage. The manual advises using only 1.5V AAA batteries and warns against exposure to heat, fire, crushing, or using incorrect battery types. Wyze claims a minimum of 10,000 measurements for safety and performance, but this is based on manufacturer specifications. No verified claims regarding recycled content, product take-back programs, repair part availability, or specific safety certifications for this model were found.
What works
- There is no evidence of independent validation of body composition measurements specific to the model against reference methods such as DXA, MRI, or a four-compartment approach. Consequently, the accuracy of segmental and overall composition results at the individual level remains unproven.
- An independent laboratory report utilizing traceable test weights could not be found for this specific product's weight accuracy, repeatability, or off-center performance.
- Wyze promotes their composition results as highly accurate; however, their own documentation confirms that all non-weight measurements are derived from algorithms that estimate values based on impedance and profile data.
- The privacy label on the App Store for the companion app indicates that health information and various other data are associated with the user. While users can export their data and delete their accounts, the data collection is not minimal.
- No specific UL or ETL certification was found for this model. The scale has FCC radio authorization, which pertains to communication regulations and does not indicate product safety certification.
What does not
- According to Wyze's instructions, the weight-only mode can disable the impedance signal, which is especially recommended for individuals with pacemakers and during pregnancy.
- The manual provides specific warnings regarding pregnancy, implanted electronic devices, dialysis, edema, osteoporosis, low bone density, extreme ages, and highly experienced users.
- The wireless hardware has a model-specific FCC authorization record for radio compliance in the United States.
- According to the manufacturer, Wyze allows users to export data within a selectable date range through the in-app export feature. Additionally, the product is capable of recording measurements without Wi-Fi access after initial setup.
- The device uses four standard AAA batteries that can be replaced by the user, eliminating the need for a sealed rechargeable battery.
Who is it for
This device is ideal for adult households interested in regular weight monitoring and optional body composition trend charts. It requires a flat, hard surface and is easy to use with the Wyze app. It is especially suitable for households that prefer user-replaceable batteries, desire a color display on the scale, or plan to share the device among multiple users. Additionally, it is well-suited for individuals who value keeping records, as Wyze allows for exporting data over specific date ranges. Please note that the body composition readings are intended for general trend tracking and should not be used for medical decision-making.
Who is it not for
This device is not appropriate for individuals requiring clinically validated measurements of body fat, lean mass, visceral fat, or segmental analysis for medical assessment, athletic performance testing, or treatment planning. It should not be used by those with a pacemaker, other implanted electronic devices, artificial heart-lung systems, portable medical electronics, or during pregnancy. Instead, they should follow the manual instructions to use the shoes or activate the weight-only mode. Additionally, it may not be suitable for users who are unwilling to connect to an app or share health data within a broader ecosystem of connected devices.
#6
Wyze Scale Ultra
Buyer Score 84/100 Integrity Score 76/100 WYZE SCALE
Overview
Wyze characterizes the app's features for measuring weight, body fat, and heart rate as general fitness and wellness tools rather than diagnostic or treatment devices. This distinction is important because the device determines most composition metrics using bioelectrical impedance and user profile information. The user manual also advises that certain groups—such as pregnant individuals, those with edema, or undergoing dialysis—should consider body fat results only as reference data. Additionally, Pregnancy Mode offers a practical weight-focused measurement option. The scale operates on four replaceable AAA batteries, which helps avoid the waste associated with sealed lithium batteries once their capacity diminishes. Wyze offers a one-year warranty and provides security support until December 31, 2030. The company recommends recycling used electronic devices where appropriate recycling facilities are available but did not identify any certified recycled-content, packaging reduction, take-back programs, or third-party environmental certifications specific to this model. No recalls related to this scale have been identified in the Consumer Product Safety Commission records.
What works
- There are no independent validation studies available that specifically assess the accuracy of body-fat, muscle, water, or visceral-fat estimates against DXA, MRI, or a four-compartment reference method.
- No independent lab report was found to verify the accuracy of weight measurements, their repeatability, or the claimed 0.1-pound resolution.
- The scale instructions restrict body composition results to reference purposes only for pregnancy and certain groups whose hydration levels or body composition may differ from the algorithm’s assumptions. No specific guidance regarding implanted devices was identified in the materials reviewed.
- The companion app gathers health information associated with user identity, as well as detailed account, device, and usage data. Apple classifies these disclosures as developer-reported and unverified.
- No UL or ETL safety listing specific to the model was found. FCC authorization confirms radio frequency compliance but does not certify overall electrical safety or impact from drops.
What does not
- According to Wyze, the weight feature can be used without needing to be connected via Wi-Fi or Bluetooth.
- The expansive color screen displays metrics and trends directly on the scale, minimizing the need to open the app for each check-in.
- The device uses four standard AAA batteries that can be replaced by the user, instead of sealed rechargeable batteries.
- The wireless model can be individually identified within the FCC authorization record.
- Wyze has listed December 31, 2030, as the end of security support for this product.
Who is it for
This device is ideal for adult households mainly interested in easy weight trend monitoring and prefer to see their readings directly on the scale. It is also suitable for those who do not want a permanently connected bathroom device, as Wyze states that Wi-Fi setup can be bypassed and measurements will still be visible on the display. Users who view body-fat, water, muscle, and related metrics as general wellness indicators rather than precise clinical data can utilize the app and compatible health platform synchronization as supplementary tracking tools.
Who is it not for
This device is not recommended for individuals making decisions related to treatment, nutrition, pregnancy, athletic performance, or body image based on body composition results. Wyze advises that the results may be unreliable for people under 18 or over 65, pregnant women, or those with conditions such as osteoporosis, very low bone density, edema, or who are undergoing artificial dialysis. Individuals with implanted electronic devices should seek device-specific advice before using the BIA functions, as specific guidance for implants was not found. Additionally, it is not suitable for users who require independently validated body composition accuracy or minimal data collection through the app.
#7
RENPHO Elis 1 Smart Body Weight Scale
Buyer Score 83/100 Integrity Score 73/100 RENPHO
Overview
The manufacturer provides notably detailed exclusions for its impedance measurement feature. It states that individuals who are pregnant, have osteoporosis, use a pacemaker or portable ECG, have artificial joints, or possess other implanted metal devices should only use the device for weighing purposes and should wear shoes. The manual also describes the product as a household item rather than a medical device. These restrictions are important because the broader range of body metrics is derived from impedance and profile-based algorithms. The Bluetooth component for this product line has a traceable FCC equipment authorization record; however, no corresponding UL or ETL safety listings were found. A public CPSC report records one non-injury incident where the glass of this model shattered during movement, with no recall reported. The manufacturer states that the device is made of tempered glass and uses replaceable AAA batteries. While replaceable batteries help reduce sealed-battery waste, there is no evidence of recycled materials used, nor are there any repair, take-back, or electronics recycling programs specifically for this product.
What works
- No independent validation of body composition specific to the model against reference methods such as DXA, MRI, or similar was found. Therefore, the body fat and related measurements should be considered as approximate trends rather than precise values.
- There is no certified laboratory report available for this product's weight accuracy, repeatability, or specified display division.
- A public incident report from CPSC mentions this model in a no-injury event where the glass reportedly broke during movement. Although this is not a recall, it serves as an important safety concern.
- No corresponding UL or ETL certification was found for the product. While its Bluetooth authorization can be verified, it does not indicate a product safety certification.
- According to Apple's developer-reported privacy label, the app's usage data might be utilized to monitor users' activities across other companies' apps and websites.
What does not
- The manufacturer explicitly designates the scale for household use rather than for medical purposes.
- Manufacturer guidance provides specific weight-related precautions for pregnancy, pacemakers, osteoporosis, artificial joints, portable ECG devices, metal implants, and children under eight.
- The companion app records the export of measurement history within a specified date range and includes a process for deleting selected records.
- The product utilizes user-replaceable AAA batteries, eliminating the reliance on a sealed, rechargeable battery that could be a potential point of failure early on.
Who is it for
This product is ideal for adults seeking a compact household scale for monitoring regular weight trends and who are comfortable using a smartphone app to keep track of their data. It also appeals to those who appreciate the option to export recorded measurements and prefer replacing depleted AAA batteries over charging the device. The body composition readings are best used for tracking general, consistent personal trends under similar hydration and timing conditions, rather than for determining precise clinical body fat percentages or making medical decisions.
Who is it not for
This device is not suitable for individuals who require medically actionable body composition results, a DXA-equivalent fat measurement, or independently verified weighing accuracy. Pregnant users, children under eight, and individuals with pacemakers, portable ECG devices, osteoporosis, artificial joints, or other metal implants should adhere to the manufacturer’s instructions for weight-only measurement and wear shoes to ensure accurate impedance readings. Additionally, households worried about glass breakage or users needing third-party safety certification should consider the reported shattering incident and the lack of an official safety listing.
#8
Etekcity Smart Body Weight Scale
Buyer Score 80/100 Integrity Score 80/100 Etekcity
Overview
The most important health protections are provided by the manufacturer's usage instructions. The manual states that the scale is not intended for diagnosis or treatment and emphasizes that its readings are not a substitute for professional medical advice. It also features a Zero-Current Mode, which disables electrical body composition measurements while maintaining weight and BMI data. This function is especially important for pregnant users and individuals with implanted electronic medical devices. The specific model is listed in the federal device identifier database as a commercially sold, exempt body composition analyzer, not as a certified diagnostic device. For safety, the manual specifies the use of tempered glass, a maximum weight limit of 400 pounds, a 500 mAh rechargeable lithium-ion battery, USB-C charging, and advises against using the scale if the glass is cracked or damaged. No recalls or public safety actions related to this product were found in the checked sources. The scale comes with a two-year limited warranty for continued use; however, the battery is not documented as user-replaceable. Additionally, there is no information on recycled materials, environmental certifications, parts manuals, battery removal procedures, or a take-back program, leaving the end-of-life disposal process unclear.
What works
- There are no peer-reviewed, model-specific comparisons available that assess accuracy against DXA, MRI, or other reference body composition methods. Therefore, measurements of fat, muscle, visceral fat, and related values should be considered as trend estimates rather than precise assessments.
- Independent publicly available testing confirms that this specific model has undergone laboratory testing; however, the results provided are insufficient to verify the claimed weight accuracy or consistency.
- The companion app saves synchronized wellness data, such as weight and body composition details associated with a user account, on cloud servers.
- The scale is equipped with a rechargeable lithium-ion battery; however, there are no verified instructions for battery removal, repair parts program, recycled-content information, or product take-back options available.
- The pacemaker warning recommends consulting a healthcare professional instead of just avoiding BIA. Therefore, users with implanted electronic devices should choose the Zero-Current Mode actively.
What does not
- The manual explicitly states that the scale is not intended for diagnosis, treatment, or to substitute professional medical advice.
- Zero-Current Mode turns off the body composition current while preserving weight and BMI measurements, making it suitable for pregnancy or when an implanted device is present.
- Federal device records confirm that this specific scale is a commercially available body composition analyzer, and its wireless approval can be verified.
- The manual states that the platform has a weight capacity of 400 pounds, features tempered glass, includes USB-C charging, and comes with a two-year limited warranty.
- VeSync provides documentation for account and data deletion, as well as an option to download and retain a copy of your records.
Who is it for
This device is ideal for adult households that want to regularly monitor weight and track optional, non-diagnostic body composition trends, particularly when multiple users have separate app accounts. It is also suitable for individuals who prefer a larger, easy-to-read display and wish to avoid disposable AAA batteries. Users who wish to keep a record of their data can utilize VeSync’s export and deletion features. Pregnant women and those with implanted devices can continue to use its weight and BMI functions by intentionally enabling Zero-Current Mode and following their healthcare provider’s advice.
Who is it not for
This product is not suitable for individuals looking to measure clinical body fat, muscle mass, visceral fat, metabolic age, or heart rate. Its body composition algorithms have not been publicly validated against a standard reference method, and factors such as hydration levels, barefoot contact, body profile, and device placement can influence the estimates. People with pacemakers or other implanted electronic medical devices should avoid using the BIA mode. Additionally, it may not be ideal for users concerned about privacy, as it uploads wellness data to a cloud-connected app. It is also not recommended for those who require easily replaceable batteries or readily available repair parts.
#9
Etekcity Smart Body Weight Scale
Buyer Score 79/100 Integrity Score 76/100 Etekcity
Overview
The safety instructions are more informative than a standard disclaimer often found with smart scales. The manual clarifies that the product is not intended for diagnosing or treating medical conditions. It advises users with pacemakers or other electronic medical devices to consult a healthcare professional before use. Additionally, it features a Zero-Current Mode that turns off the impedance current; however, BMI calculations still rely on user-entered profile data and should not be considered diagnostic. The product’s wireless features are authorized by FCC approval. The manufacturer offers a two-year limited warranty and uses replaceable AAA batteries, avoiding the need to dispose of a sealed rechargeable pack. Users are instructed in the manual to dispose of depleted batteries responsibly. There is no evidence of recycled materials, efforts to reduce packaging, repair parts, or a take-back program for this product. The manufacturer also includes a California Proposition 65 warning regarding lead exposure, which consumers should take seriously.
What works
- No independent study on specific products was found that demonstrated acceptable agreement of individual body-fat or muscle estimates with DXA, MRI, or other reference methods.
- The claimed 0.1-pound increase is not supported by any verified independent or traceable calibration report for this product.
- The manufacturer provides a California Proposition 65 warning indicating that the product may expose users to lead.
- No specific UL or ETL safety certification for the product was found in the publicly available directories that were reviewed.
- The app gathers connected health and fitness information during use, and its privacy policy allows for specific advertising-related disclosures that could be considered a sale under certain state laws.
What does not
- Manual Mode allows operation without a phone, storing local records as specified by the manufacturer.
- According to the manual, Zero-Current Mode offers a convenient, weight-centered setting suitable for individuals who are pregnant or have implanted devices.
- The Bluetooth transmitter is linked to a specific product's FCC certification.
- AAA batteries are replaceable by the user, and the manual includes a two-year limited warranty.
Who is it for
It is suitable for adult households seeking regular weight monitoring on a compact 11-inch platform, with the flexibility to use the scale without needing a phone. It is also ideal for individuals who prefer to keep electrical-impedance body metrics optional. The manual includes a Zero-Current Mode that disables bioelectrical impedance analysis (BIA) while still displaying weight and BMI. Additionally, it uses removable AAA batteries instead of a proprietary charging system. Please note that the composition figures are trend estimates and should not be used for clinical decision-making.
Who is it not for
This device is not suitable for individuals requiring clinically validated measurements of body fat, lean mass, visceral fat, or metabolic age for medical treatment, athletic evaluation, or nutritional planning. No direct comparison to reference methods such as DXA was found. Pregnant women and those with implanted electronic medical devices should avoid using the BIA function unless they follow the manual's warnings and consult a healthcare professional. Users concerned about privacy who prefer not to have health data synced to a cloud account should utilize offline features or select a non-connected scale.
#10
GE Smart Body Composition Scale
Buyer Score 77/100 Integrity Score 74/100 GE
Overview
The primary health reminder in the manual emphasizes the BIA warning regarding pregnancy, pacemakers, and other implanted medical devices. It also offers practical advice to avoid wet surfaces, refrain from jumping onto the scale, and use the device on a hard, dry surface with bare feet. The measurement process emphasizes consistency, making it more suitable for tracking weight trends rather than using the estimated body metrics as a diagnostic tool. The product's Bluetooth functionality is independently verifiable through an FCC record, serving as proof of wireless compliance rather than a comprehensive electrical safety certification. No specific UL or ETL safety certifications for this model were found in available directories, and no independent validation of its body composition estimates has been identified. The scale uses three replaceable AAA batteries, which can prolong its lifespan, but there are no verified programs for recycling, reduced packaging, take-back, spare parts, or repairs. The manufacturer offers a one-year limited warranty and advises users to dispose of the device according to local regulations.
What works
- There are no independent validation studies available that compare this specific product's body composition estimates to DXA, MRI, or other suitable reference methods.
- Marketing displays numerous estimated metrics, such as visceral fat and metabolic age, but often does not clearly emphasize that these are algorithmic wellness assessments rather than formal diagnoses.
- No specific UL or ETL electrical safety certification for the exact model was found in the certification databases searched.
- The app's store disclosures indicate that health data, email addresses, user IDs, and diagnostics may be associated with the user. Additionally, Google Play states that app details and performance data might be shared with third parties.
- The manufacturer's documentation indicates a one-year warranty, whereas the catalog listing specifies a two-year warranty. This inconsistency should be clarified before determining the actual warranty period.
What does not
- The manual provides practical instructions for repeated measurements, covering aspects such as using a hard floor, barefoot and dry conditions, zeroing the device, and taking measurements at consistent times.
- It prominently warns against using body composition measurement devices during pregnancy or if you have a pacemaker or other implanted medical devices.
- Bluetooth radio certification can be linked directly to the specific product listed in the FCC database.
- The companion app provides access to your activity history, allows you to delete measurements, and offers optional integration with Apple Health, Google Fit, and Fitbit.
- Using replaceable AAA batteries prevents a sealed rechargeable battery from becoming a single point of failure.
Who is it for
This product is ideal for adults seeking a traditional bathroom scale combined with app-based weight tracking and comprehensive wellness insights. It is designed for use on a stable, hard floor. It is especially suitable for individuals who prioritize monitoring consistent weight trends and are willing to follow the manual’s routine, such as weighing at the same time of day, with dry bare feet, on a flat surface. Additionally, it appeals to users who appreciate the option to synchronize data with Apple Health, Google Fit, or Fitbit, and prefer easily replaceable AAA batteries over a built-in rechargeable battery.
Who is it not for
This product is not suitable for individuals with a pacemaker or other implanted electronic medical devices, as well as for pregnant women, because the manual explicitly advises against using the body-fat scale function. Users should not assume that the device provides a reliable weight-only measurement without body-fat analysis. Additionally, it is not appropriate for those who require clinically validated body fat or muscle measurements, medical monitoring, laboratory-verified weight accuracy, or a scale that can be safely used on carpets, wet surfaces, or immediately after bathing or exercising.