The 12 Best Smart Scales of 2024, Tested

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Smart scales can help you measure and track your body weight, body mass index (BMI), body fat percentage, muscle mass, and more. While standard scales typically only display weight on their screen, smart scales often wirelessly connect to your smartphone via compatible apps. These apps can record data from multiple users over time and even help you track your health goals.

To find the best smart scales on the market, we sought input from medical experts on what key features to look for when shopping for a high-quality option and how to use it properly. Then, we tested 30 top-rated options in The Verywell Testing Lab and our homes for over a month, using each scale daily. We evaluated each smart scale’s setup, precision, data storage, display, ease of use, and value. We also had a member of our Review Board—a registered dietitian nutritionist and certified personal trainer—carefully review this article to ensure its accuracy.

What to Know Before You Get Started

A significant advantage of smart scales is their ability to create a digital, long-term health history by storing your data in a user profile. Compared to traditional dial scales, smart scales tend to be more accurate for routine weight management, says weight loss clinic physician Katie Rosenfeld, DO. When using a smart scale, place it on an even surface, weigh yourself around the same time, and wear about the same amount of clothing each time you use it.

It’s important to note, however, that the body fat percentage displayed on smart scales is an estimate and will not be as precise as measurements you’d get with a specialized test at a doctor’s office, says obesity medicine physician-scientist Fatima Cody Stanford, MD, MPH, MPA. Also, some smart scales give users feedback, which may reinforce inappropriate weight loss goals or expectations and may also feel triggering to some. If you’d like to use a smart scale but aren’t sure if it’s the best choice, speak with your healthcare provider. 

PHOTO: Amazon

Key Specs

Weight Capacity: 400 pounds | Connectivity: Bluetooth | Metrics: Weight, heart rate, BMI, muscle rate, body fat, subcutaneous fat, visceral fat, fat-free body weight, body water rate, skeletal muscle rate, muscle mass, bone mass, protein, basal metabolic rate (BMR), heart index, body age | Users: Unlimited | Our Overall Rating: 5/5

Who It’s For

Best for users who want a versatile smart scale that works for the whole family and measures various useful metrics, including heart rate, muscle mass, body age, and more.

Why We Love It

ABLEGRID’s Smart Digital Bathroom Scale is our top pick for its ease of use, accuracy, and comprehensive metrics. During testing, we noted its consistent and precise readings. We love that it accurately tracks small weight fluctuations and doesn’t require recalibration. With a simple setup and quick charging, it’s easy and straightforward to use.

This scale seamlessly connects to our device and collects a vast amount of data, including weight, heart rate, BMI, muscle mass, and more, that it shares with the app. We also like its compatibility with popular third-party apps such as Fitbit, Apple Health, Google Fit, and Samsung Health. After using the scale and noting its comprehensive tracking, we think it offers outstanding value.

Potential Flaws

  • Although we liked this scale’s comprehensive tracking, we found its display for viewing stats (other than weight) quite small. However, we like that we can also see this data in the phone app if something is more difficult to read.
  • It isn’t compatible with Amazon Alexa or Google Assistant, which may not be ideal for some.

Most Valuable Insight

“This scale is very easy to use and isn’t time-consuming to set up. Its interface is intuitive, particularly the app, which spells out exactly what each measurement is.” —Ricky Marson, Verywell Fit product tester

Etekcity Body Weight Bathroom Digital Scale

PHOTO: Amazon

Key Specs

Weight Capacity: 400 pounds | Connectivity: Bluetooth | Metrics: Weight, BMI, body fat, subcutaneous fat, visceral fat, fat-free body weight, body water, skeletal muscle, muscle mass, bone mass, protein, BMR, metabolic age | Users: Unlimited | Our Overall Rating: 4.8/5

Who It’s For

Best for users who want a high-quality, budget-friendly smart scale that measures 13 important metrics.

Why We Love It

For a budget-friendly smart scale that’s just as functional as some of our pricier picks, we recommend Etekcity’s ESF24 Smart Fitness Scale. When we tested it, we were impressed with its accurate readings, extensive data tracking, and user-friendly app. Setting it up was very straightforward, and its compatible app was easy to download, connect, and use right away.

We appreciate its app’s clear, intuitive interface, which we use to view 13 different metrics, including weight, BMI, body water, protein, and more. Plus, it’s very precise, delivering consistent readings and measurements every time we use it. We also like that you can conveniently connect it to third-party apps like Alexa, Fitbit, and Apple Health.

Potential Flaws

  • This scale needs to be recalibrated when moved, so keep that in mind if you plan on using it in a few different locations.
  • During testing, we noticed that if we stepped off the scale too quickly, it didn’t show all of our data. 

Most Valuable Insight

“The app is super easy to read and navigate. When you click on your info, it explains what each metric is so you don’t have to leave the app to look up any unknown terms.” —Samantha Aronson, commerce production assistant and Verywell Fit product tester

Amazon RENPHO Smart Body Fat Scale

PHOTO: Amazon

Key Specs

Weight Capacity: 400 pounds | Connectivity: Bluetooth | Metrics: Weight, body fat percentage, BMI, water percentage, fat-free body weight, skeletal muscle, muscle mass, bone mass, visceral fat, subcutaneous fat, protein, basal metabolism, body age | Users: Unlimited | Our Overall Rating: 4.7/5

Who It’s For

Best for users who like to see a visual representation of their metrics over time.

Why We Love It

Renpho’s Smart Scale is another budget-friendly option that performed well during testing. It’s easy to set up, read, and use. We like that our weight reading stays visible for a few seconds after we step off the scale. We also love that it provides a visual representation of our body metric trends in the form of graphs, charts, and reports each time we weigh in.

Utilizing bioelectrical impedance analysis (BIA), this scale calculates 13 body composition metrics based on the rate at which an electrical current moves through the body. These include weight, body fat percentage, basal metabolism, and more. Its user-friendly app also enables users to save and track progress and sync with many popular third-party fitness apps. 

Potential Flaws

  • During testing, we noted this smart scale’s readings were slightly inconsistent with standard scale readings. Still, we were impressed by how functional its app was.

Most Valuable Insight

“I like that I can see different body trends each day I weigh myself. You can also add different users who have access to the same features with their information.” —Nishan Weekes, Verywell Fit product tester

Amazon Arboleaf Smart Scale CS20A

PHOTO: Amazon

Key Specs

Weight Capacity: 396 pounds | Connectivity: Wi-Fi and Bluetooth | Metrics: Skeletal muscle, visceral fat, body water, body fat, subcutaneous fat, bone mass, muscle mass, BMR, protein, BMI, metabolic age, body type, fat-free mass, weight | Users: Unlimited | Our Overall Rating: 4.8/5

Who It’s For

Best for users who want a sleek smart scale that provides detailed information to help guide their health journey.

Why We Love It

Modern and minimal, Arboleaf’s Smart Scale is our top pick for the smart scale with the best design. It’s made of white tempered glass, giving it an elegant look that blends well with most bathrooms. During testing, we noted its excellent precision and accuracy. After our tester initially weighed themselves and stepped back on the scale while holding a control weight, the scale recognized the immediate increase in weight and prompted her to confirm that the same person was on the scale. Plus, an athlete mode provides even more accurate readings.

This smart scale seamlessly connected to our device, and our data easily transferred to its app (the scale is also compatible with third-party apps). We also love the layout of the information on its app. Along with numerical values, its app offers written explanations for each metric. We were also impressed by this scale’s value—after using its app and noting the scale’s precision, we expected a much higher price tag.

Potential Flaws

  • The only metric visible on the scale is weight—to see your other data, you’ll need to open the app.

Most Valuable Insight

“I couldn’t even believe the price of this scale after seeing how well it works and how amazing its app is. I definitely think you’re getting great bang for your buck!” —Chantia Murphy, Verywell Fit product tester

Omron Body Composition Monitor with Scale

PHOTO: Amazon

Key Specs

Weight Capacity: 330 pounds | Connectivity: None | Metrics: Weight, body fat percentage, BMI, skeletal muscle, resting metabolism, visceral fat, body age | Users: Four | Our Overall Rating: 4.1/5

Who It’s For

Best for users who want a low-maintenance scale that accurately measures your body composition.

Why We Love It

Omron’s Body Composition Monitor With Scale helps users understand their unique body composition. It calculates your body fat percentage through a retractable, handheld sensor that takes measurements from your hands and feet. This scale displays your metrics directly on an easy-to-read screen and doesn’t require an app, making it a more low-maintenance option than some of our other picks.

While this scale is slightly bulky and harder to set up than some other options we tested, it does a really great job of providing important and accurate body metrics. It read a consistent weight regardless of our controls, making it very precise. With no app, all your metrics are stored directly on the scale and can be accessed on screen with just the touch of a button. If you want an all-in-one scale without having to deal with Bluetooth or Wi-Fi, this is the option for you.

Potential Flaws

  • It’s pricier than other smart scales on our list, but we think it’s a good investment if you haven’t been able to find a scale that accurately captures your body composition.

Most Valuable Insight

“Its classic, alarm clock-like screen is very easy to read, even when cycling through all of the different metrics and statistics.” —Sarah Felbin, former associate commerce editor for the brand and Verywell Fit product tester

FitIndex ES-26M Bluetooth Body Fat Scale

PHOTO: Amazon

Key Specs

Weight Capacity: 400 pounds | Connectivity: Bluetooth | Metrics: Weight, BMI, body fat, subcutaneous fat, visceral fat, fat-free body weight, body water, skeletal muscle, muscle mass, bone mass, protein, BMR, metabolic age | Users: Unlimited | Our Overall Rating: 5/5

Who It’s For

Best for users who want a sleek smart scale that’s very user-friendly but still has a lot of functionality.

Why We Love It

FITINDEX’s Smart Scale is straightforward, easy to use, and budget-friendly—without compromising functionality or performance. During testing, we liked that its simple display was very clear and bright, regardless of the lighting in the room. Plus, our data synced quickly and flawlessly to its app, which we found extremely intuitive and user-friendly.

We were impressed that this smart scale accurately tracks 13 metrics, including BMI, weight, body fat, bone mass, and more, and is compatible with various third-party apps. Plus, it provided precise, consistent measurements when we used it. With its attractive, sleek design and comprehensive features, this scale is on par with pricier options—making it a great value.

Potential Flaws

  • This scale’s display only shows weight, so you must use its app to view your other data.

Meet Our Tester

One of our testers is a runner who wants to use a smart scale to analyze how his weight and other metrics correlate to his running workouts and performance. He thinks this scale is extremely accurate, feature-packed, less expensive, and of higher quality than the last two options he purchased. He has already recommended it to friends and family.

iHealth Nexus Pro Wireless Body Composition Scale

PHOTO: Amazon
Pros

  • Easy to set up

  • Precise weight readings

  • Larger platform

Key Specs

Weight Capacity: 400 pounds | Connectivity: Bluetooth | Metrics: Weight, BMI, body fat, heart rate, visceral fat, lean mass, body water, muscle mass, bone mass, protein, BMR, metabolic age | Users: Unlimited | Our Overall Rating: 5/5

Who It’s For

Best for users who want a smart scale that makes it easy to view their health and fitness progress over time.

Why We Love It

For those looking to monitor and track their health metrics, iHealth’s Nexus Pro Wireless Body Composition Scale is a great, user-friendly option. It’s a cinch to get started simply by putting in the batteries, creating a user profile, connecting to the iHealth app, and stepping on this scale’s roomy platform. Its app displays 12 different metrics on a dashboard, providing a comprehensive overview of our body weight trends and helping us stay on track with our goals. It also features weight and BMI graphs that show progress over time—which we found very useful.   

During testing, we found the weight readings to be very precise. We liked that they were measured in 0.1-pound increments so we could see our progress, even when it was on the smaller side. We also appreciate that its app records the time you weigh yourself so you can track trends for weight loss. Plus, it easily syncs data with third-party apps such as Apple Health, Google Fit, and Fitbit and can export reports to a family member or healthcare provider.

Potential Flaws

  • This scale uses Bluetooth to connect to your phone and app—it doesn’t have Wi-Fi connectivity.

Most Valuable Insight

“This scale is very user-friendly and intuitive. The interface on its app is also easy to use. I would definitely recommend this scale to others. There seems to be at least one metric that everyone can use to track weight and fitness goals. It has been a great tool for me to use for weight-loss tracking.” —Danielle Auger, Verywell Fit product tester

Posture Scale for Body Weight

PHOTO: Amazon

Key Specs

Weight Capacity: 400 pounds | Connectivity: Bluetooth | Metrics: Weight, BMI, body fat, subcutaneous fat, visceral fat, fat-free body weight, body water, skeletal rate, muscle mass, bone mass, protein, BMR, body age | Users: 24 | Our Overall Rating: 5/5

Who It’s For

Best for users who want a smart scale that comprehensively tracks body composition over time. 

Why We Love It

If you want to use a smart scale to help inform changes to your health and fitness routine, we recommend Posture’s Scale for Body Weight. During testing, we were impressed with the massive amount of useful data it collects, including metrics such as BMI, body fat, body water, protein, BMR, and body age. Viewing our stats and assessments in the app motivated us to make lifestyle changes, such as drinking more water and adjusting our workouts.

We like that this scale’s display is bright and very easy to read, and its app is simple to navigate and use. Plus, it provided accurate readings and didn’t require recalibration when we moved it. And we love that it can be synced with popular health and fitness apps such as Apple Health, Google Fit, Samsung Health, and Fitbit.

Potential Flaws

  • This scale’s display only shows weight, so other metrics will need to be viewed on its app.

Meet Our Tester

Our tester wanted to try a smart scale to learn about his BMI, body fat, body water, and other important health information. He was impressed with this scale’s robust tracking capabilities, especially given its reasonable price. He also thinks it’s easy to use and appreciates that its app explains what each reading means.

RENPHO Elis 2X Smart Body Scale

PHOTO: Amazon
Pros

  • Offers pet, baby, and athlete modes

  • Excellent value

  • Provides 13 detailed metrics

Key Specs

Weight Capacity: 400 pounds | Connectivity: Bluetooth | Metrics: Weight, BMI, body fat, subcutaneous fat, visceral fat, fat-free body weight, body water, skeletal muscle, muscle mass, bone mass, protein, BMR, metabolic age | Users: Unlimited | Our Overall Rating: 4.9/5

Who It’s For

Best for users who like to track their daily health and fitness stats in apps.

Why We Love It

Renpho’s Elis 2X Smart Body Scale makes it easy to track your stats in health and fitness apps. It seamlessly syncs with apps such as Apple Health, Samsung Health, and MyFitnessPal, so you can have all your data in one place. During testing, we found this scale user-friendly and intuitive, with a clear, easy-to-read display. Plus, it only took us a couple of minutes to fully set up the scale and its corresponding app. 

We were impressed with its compatible Renpho Health app, which we used to view 13 detailed body metrics and graphs showing our progress. Based on its comprehensive feedback, we closely tracked our stats and altered some of our habits. In general, this scale is feature-packed and offers excellent value for its price. With an unlimited number of users and baby, pet, and athlete modes, it’s a good option for sports teams and other large groups.

Potential Flaws

  • We like that this scale’s display is easy to read, but we noticed that the display numbers disappeared relatively quickly after we stepped off the scale. 

Most Valuable Insight

“I honestly feel like this scale’s data is very precise. I could see small differences in the data when I drank more water than the previous day. It’s nice to know that this scale can accurately track subtle differences day to day.” —Nick Frasher, Verywell Fit product tester

Wyze Scale X Smart Scale

PHOTO: Amazon
Pros

  • App provides detailed graphs for each metric

  • Accurate, consistent readings

  • Modes for babies, pets, athletes, and luggage

Key Specs

Weight Capacity: 400 pounds | Connectivity: Bluetooth | Metrics: Weight, BMI, body fat, visceral fat, lean body mass, body water, skeletal muscle, muscle mass, bone mass, protein, BMR, heart rate, metabolic age | Users: Eight | Our Overall Rating: 5/5

Who It’s For

Best for households with multiple users who want to track their data separately.

Why We Love It

Wyze’s Scale X is feature-packed and very user-friendly—making it a great pick for family use. It can automatically detect and store data for up to eight users, and each person can access and track their own information separately. During testing, we found its setup was quick and easy, taking us only about 10 minutes to complete, and we were impressed that it monitors 13 different metrics. We also appreciate that it offers something for all family members, including specialized functionality to weigh babies, pets, and luggage, as well as an athlete mode with enhanced body composition tracking.

This smart scale’s weight sensors are highly sensitive, which resulted in very accurate and consistent readings during testing. We also love that its app offers great functionality and graphs for each metric, allowing us to view our progress over time. Plus, its detailed explanations about each measurement helped to inform our health and fitness choices.

Potential Flaws

  • This scale is a bit bulkier than some other options on our list. We wish it was slimmer and easier to hide away in the bathroom.

Most Valuable Insight

“I would definitely recommend this scale to others. It was always accurate, and the app made tracking and understanding the data outputs easy. Plus, its display is clear and very easy to read. I have glasses and could easily read the screen without my glasses on. It was large and bright, making it easy to see.” —Casey Jamison, Verywell Fit product tester

Withings Body Scan Revolution

PHOTO: Amazon

Key Specs

Weight Capacity: 440 pounds | Connectivity: Wi-Fi, Bluetooth | Metrics: Weight, body fat, BMI, total body water, muscle mass, bone mass, visceral fat, BMR, heart rate, metabolic age, lean mass, nerve health, electrocardiogram (ECG), pulse wave velocity, heart rate, vascular age | Users: Eight | Our Overall Rating: 4.7/5

Who It’s For

Best for users who want a premium, high-tech smart scale to help closely monitor their health.

Why We Love It

Withings’ Body Scan Revolution Scale is a high-tech, feature-packed smart scale that goes way beyond basic body composition measurements, with ECG functionality that can help monitor your heart health. During testing, we were impressed with the vast amount of tracked metrics and helpful information in its compatible app. We found its readings to be very precise. We also appreciate that it has a higher weight capacity than some other smart scales. 

This scale is super easy to use: You stand on it, grip the handle, and it toggles through various measurements. Its display is bright, engaging, and easy to read, and we like how it also includes weather stats such as temperature and air quality. Plus, it connects seamlessly with over 100 different apps. We especially like that we can sync it to our Apple Health app to view our daily step counts on this scale.

Potential Flaws

  • While its app provides a lot of information, it’s difficult to navigate and understand. You also have to pay to access some additional features, such as fitness and meal plans.
  • This is one of our pricier picks, but we still think it’s a solid investment for someone who wants a wealth of health information at their fingertips.

Meet Our Tester

Our tester wants to use a smart scale to track her weight and body composition and connect it with the Apple Health app. She likes that this scale is easy to use, has an engaging display, and offers comprehensive health tracking.

eufy Smart Scale P3

PHOTO: Amazon

Key Specs

Weight Capacity: 440 pounds | Connectivity: Wi-Fi, Bluetooth | Metrics: Weight, BMI, body fat, visceral fat, lean body mass, body water, skeletal muscle mass, muscle mass, bone mass, protein, BMR, heart rate, metabolic age, body type, lean body mass, subcutaneous fat | Users: Unlimited | Our Overall Rating: 4.7/5

Who It’s For

Best for users who want a precise smart scale that tracks 16 metrics and offers a customizable display.

Why We Love It

Eufy’s Smart Scale P3 features high-precision pressure sensors that easily detect weight changes in 0.1-pound increments, ensuring very precise readings. When we tested this scale, it was incredibly easy to set up and connect to its compatible app. It monitors 16 unique metrics and sends data to your phone via Wi-Fi or Bluetooth. 

We love that its display is customizable so that we can see our most important information as quickly as possible. We found its measurements to be very accurate and consistent. We were also pleased to find detailed explanations of each measurement in its app. Its app also features customized fitness plans based on your measurements, body type, and fitness goals.

Potential Flaws

  • We could easily view the big numbers and images on the display screen, but we had to bend down to read the smaller text.
  • Although we found this scale relatively easy to use, we found it challenging to figure out how to switch between different profiles.

Meet Our Tester

Our tester weighs herself daily and is trying to improve her muscle mass. She found this scale to be a huge improvement over her old one regarding accuracy, tracked metrics, and consistency. She also appreciates how easy it is to set up.

Smart Scales We Also Tested 

We tested 30 smart scales, but only 12 impressed us enough to earn a spot on our final list of recommendations. While these smart scales didn’t quite make the cut, they do have some notable features.

  • Sportneer’s Smart Scale is intuitive, easy to use, and pretty precise. However, the weight-to-height ratio it recommends is on the lower side than what is generally considered healthy, which could trigger some users.
  • QardioBase’s X WiFi Smart Scale has a great display and stores a lot of data, but we don’t think it’s worth the money because it was inaccurate and inconsistent during testing.

What We’ve Updated 

  • Since publishing our initial tested roundup of the best smart scales, we’ve re-evaluated our previous picks and hands-on tested nine additional options from top, trusted brands. Based on our testing, we’ve evaluated each smart scale for its precision, setup, ease of use, readability, data storage, and value and incorporated these new insights into our article.  
  • Based on our testing insights, we’ve reworked most of our superlatives and product picks, including Best Overall, Best Budget, Best Investment, and more. 

What to Look for When Shopping for Smart Scales

  • Fitness App Compatibility: Many smart scales come with their own weight-tracking apps. But if you already use a third-party app that you love, look for a scale that’s compatible so you don’t lose your data.
  • Bluetooth and Wi-Fi Connectivity: Bluetooth smart scales require you to have your smartphone within range to log your metrics successfully. Wi-Fi-enabled smart scales tend to be more reliable and easier to use, as Bluetooth can be unpredictable. Some scales have Bluetooth and Wi-Fi connectivity for integrating Amazon Alexa or Google Home.
  • Metrics: Most smart scales track so much more than just your weight. Choose a scale that tracks data points that are important to you, whether that’s your body mass index, muscle mass, body fat percentage, bone mass, or another statistic.
  • Weight Capacity: All scales have a maximum weight capacity. Before purchasing, ensure your scale can hold the weight of everyone who will use it.
  • Data Storage: One of the biggest perks of choosing a smart scale over a standard scale is the ability to record your metrics, track your progress, and view your numbers later. When purchasing a smart scale, check its data storage capacities. Look at how many users it can hold, how many measurements it records, and how easy it is to keep track of your progress.
  • Ease of Use: If your scale is difficult to use, you won’t be motivated to add it to your daily routine. Make sure the setup process is simple and that the scale has the right technology for your smartphone, third-party apps, and Amazon Alexa or Google Home devices. Also, look for a large, clear display that’s easy to read.

How We Tested the Smart Scales

To find the best smart scales, we spent over a month testing 30 options in our Lab and at home, using each one once per day. When testing smart scales, we evaluate each option based on the following key criteria.

  • Setup: To evaluate setup, we unbox each smart scale, download its corresponding app, and pair it with our smartphones. We think about how easy the process is and how long it takes. We prioritize smart scales that are easy and intuitive to set up and have clear instructions.
  • Precision: To evaluate the precision of each scale, we weigh ourselves several times. First, we check our weight on a standard scale. Next, we step on the smart scale. Then, we hold a 5-pound dumbbell and weigh ourselves three more times. Does the number on the display jump by five pounds? We note whether the smart scales read the same as the analog scale and whether our weight remains consistent throughout the test.
  • Readability: For any scale to be worth it, you need to be able to clearly read the data it displays. While standing on each smart scale, we note how easy it is to read and interpret our weight. Is the display well-lit? Can we read it from a distance? Can we read it in various lighting? 
  • Data Storage: Your scale needs to have the capacity to record and store your metrics. During our Lab test, we test each smart scale’s data storage and user profiles. We prioritize scales that offer 10 or more data points other than weight, can record data for at least 10 users, and have a compatible app that easily tracks and stores metrics. 
  • Ease of Use: To earn a high ease of use score, we prioritize scales that don’t require recalibration or additional instructions, like tapping your foot on the scale before use.  
  • Value: To accurately assess each smart scale’s value, we don’t check the price until the end of the testing period, after we’ve evaluated each option in all other key categories. Based on the scale’s performance, do we think it’s priced fairly? Or would we only buy it if it went on sale? We also consider whether we’d recommend the scale to a friend or family member.

Our Experts

We consulted experts at each stage of our research, testing, and reporting process. The following experts helped us understand how smart scales work, their accuracy, and what measurements they can provide. While we choose products independently, input from experts influences our decisions.

  • Katie Rosenfeld, DO, weight loss clinic physician with DuPage Medical Group Obesity Medicine in Illinois
  • Fatima Cody Stanford, MD, MPH, MPA, obesity medicine physician-scientist, educator, and policy maker at Massachusetts General Hospital and Harvard Medical School
  • Vladimir Karpukhin, RVT, RMDS, diagnostic medical sonographer at Northern Arizona Healthcare

Frequently Asked Questions

How do smart scales calculate body fat?

Smart scales calculate an estimated body fat percentage using bioelectrical impedance. Sensors in the scale send an undetectable electric current from one foot through your body to the other foot. The slower the current, the higher the fat percentage.

How do smart scales measure bone density?

Smart scales measure bone density through a dual-energy X-ray absorptiometry (DEXA) scan. Bones are poor conductors of electricity compared to other body tissues, so electrical current resistance allows smart scales to calculate bone mass, says Karpukhin.

How do you reset a smart scale?

Every smart scale has different reset instructions—it can be as simple as pushing a button or more complicated, like removing the batteries and restarting it. Refer to your smart scale’s manual for specific directions. 

Can smart scales be wrong?

In general smart scales are accurate when it comes to weight. However, some research suggests that body composition, including body fat and muscle mass, is often associated with errors due to incorrect foot positioning, foot size, and sweat. To get the most accurate reading possible, be sure to follow your scale’s directions very carefully. Contact your healthcare provider if you’re concerned about any of your readings.

Why Trust Verywell Fit

Michelle Parente is an experienced fitness writer who is passionate about making great product recommendations. She has her own personal smart scale, so she knows that accuracy and precision are essential each and every time you step on it. As a fitness enthusiast, Michelle believes a good smart scale can help support your health and fitness journey.

Additional reporting contributed by Emily Stone

Emily Stone is a Chicago-based journalist specializing in fitness and lifestyle content. She does ample research on the best health and fitness gadgets on the market and only recommends the top ones. In a world with seemingly endless gadgetry, she loves that smart scales gather precise health information on one device, which previously required multiple.

 Additional reporting contributed by Christine Luff

A certified personal trainer, running coach, gym buff, and fitness writer, Christine Luff, ACE-CPT, spends countless hours researching and testing the latest health and fitness gear and gadgets. She only recommends products that she can genuinely stand behind and that she believes would be a good investment for her readers.

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