The 11 Best Smart Scales of 2021

Track more than just your weight

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Verywell / Chloe Jeong

Carrying excess body weight puts us at risk for chronic conditions such as cardiovascular disease, cancer, and diabetes. The good news is, routinely monitoring your weight can lower the chances of these potentially serious outcomes. 

When choosing a bathroom scale, there are three main types to consider—analog, digital and smart scales. While analog and digital will help you track the basics, smart scales automatically track and store data via Wi-Fi or Bluetooth. Smart scales also track additional metrics in addition to weight, including body mass index (BMI), body fat percentage, muscle mass, and more. This is key since body fat percentage is a much better predictor of the potential health risks that come with being overweight versus just the number of pounds shown on the scale. 

One of the most significant advantages of using a smart scale is the ability to create a digital, long-term health history. There is no need to manually record results, as the device wirelessly transfers data to your smartphone or user profile. Compared to the passé “dial” scale, Dr. Katie Rosenfeld, Weight Loss Clinic Physician with DuPage Medical Group Obesity Medicine, says smart scales tend to be much more accurate for routine weight management. 

Time to put your health first and start monitoring your weight. Here are the best smart scales on the market.

Our Top Picks
The intuitive RENPHO app enables users to save and track progress and share with family members and physicians.
A sleek, lightweight Wi-Fi-enabled smart scale , this offers 14 body composition measurements with unlimited user profiles.
Best for Fitness Tracking Apps:
Withings Body Cardio Smart Scale at Amazon
It tracks weight, BMI, standing heart rate, and four key body composition metrics—fat mass, muscle mass, water, and bone mass.
Best for Beginners:
WYZE Scale at Amazon
This affordable Bluetooth-enabled smart scale tracks 12 key body composition metrics and has a 400 pound weight capacity.
Best for Measuring Body Fat:
Omron Body Composition Monitor at Amazon
A retractable handheld sensor takes body fat measurements from both the hands and feet delivering highly accurate results.
Calculates weight, BMI, body fat percentage, water percentage, skeletal muscle, fat-free body weight, subcutaneous fat, and more.
Best Design:
Qardio Base2 at Amazon
The sleek and discreet disk blends into any room and allows users to display emojis instead of numbers to track their progress.
Sufficient for the whole family, it supports and differentiates up to 16 users, with a maximum weight capacity of 396 pounds.
It's a bluetooth smart scale that accommodates unlimited users with auto-recognition and an opaque tempered glass construction.
This integrates with the Garmin Connect app for detailed weight tracking trends.

Best Overall: RENPHO Body Fat Scale

RENPHO Smart Body Fat Scale
Pros
  • Affordable

  • User-friendly app

  • Track and share progress

  • Monitors unlimited users

Cons
  • Body fat percentage may be slightly off

  • Takes longer to record metrics

Utilizing bioelectrical impedance analysis (BIA), the RENPHO Smart Body Fat Scale calculates 13 body composition metrics—including weight, body fat percentage, basal metabolism, and more.

The user-friendly RENPHO app enables users to save and track progress as well as sync data with third-party fitness apps, including Samsung Health, Fitbit, Apple Health, and Google Fit. This app also allows users to easily share their measurements and progress with family and workout partners. Best of all, the whole family can use the scale, since it can monitor multiple profiles at once. 

The RENPHO smart scale features a tempered glass platform with four sensitive silver electrodes in each corner, measuring weight in increments of 0.2 pounds. The scale comes in black and white and has a weight capacity of 396 pounds.

Weight Capacity: 396 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, and body age | Users: Unlimited

Best Budget: Arboleaf Body Fat Scale

Arboleaf Body Fat Scale
Pros
  • Affordable

  • Compact and lightweight

  • Easy to set up

  • Speedy results

Cons
  • 300-pound weight capacity

  • Numbers display in red

The Arboleaf Body Fat Scale delivers 14 body composition measurements, including basics like weight and BMI and more complex measurements like bone mass and protein. Four high sensitivity electrodes and four high precision sensors are embedded into the tempered glass surface with anti-slip gripping mats for stability. 

Data syncs via Wi-Fi or Bluetooth with the Arboleaf app to provide you with progress reports on a weekly, monthly, or yearly basis. Sync data with Apple Health, Google Fit, and Fitbit to streamline your health and fitness journey. This sleek black smart scale offers unlimited users, so it's ideal for large families, sports teams, or those living in college dorms.

The Arboleaf Body Fat Scale is lightweight and space-efficient. It has a weight capacity of 300 pounds and the unit itself weighs only 2.42 pounds.

Weight Capacity: 300 pounds | Connectivity: Bluetooth and Wi-Fi | Metrics: Weight, BMI, body fat percentage, body type, fat-free body weight, subcutaneous fat, visceral fat, body water, skeletal muscle, muscle mass, bone mass, protein, BMR, and metabolic age | Users: Unlimited

Best for Fitness Tracking Apps: Withings Body Cardio Smart Scale

Withings Body Cardio
Pros
  • Displays weather forecast

  • Syncs with fitness apps

  • Automatic user recognition

  • Pregnancy tracker, baby mode, and athlete mode

Cons
  • Difficult setup

The Withings Body Cardio tracks weight, BMI, standing heart rate, and four key body composition metrics, including fat mass, muscle mass, water, and bone mass. Units purchased in Europe offer the additional Pulse Wave Velocity (PWV) feature, which provides users a regular home cardiovascular health assessment.

The complementary Health Mate app helps users track progress over time, creating a digital health history that can easily be shared with family members and healthcare providers. Compatible with over 100 health and fitness apps, Withings reports that users who set a weight goal on an app lose twice as much weight as those who don’t.

The Body Cardio smart scale recognizes up to eight users, syncing each individual's data to their Health Mate profile via Wi-Fi or Bluetooth. With the Pregnancy Tracker for expecting mothers and Baby Mode to track a child's growth, the scale covers users through every stage of life.

This scale features a minimalist, sleek design with tonal horizontal stripes. It’s offered in black and white and operates on all surfaces. The Withings Body Cardio Smart Scale has a weight capacity of 396 pounds and measures in increments of 0.2 pounds.

Weight Capacity: 396 pounds | Connectivity: Bluetooth and Wi-Fi | Metrics: Weight, BMI, standing heart rate, fat mass, muscle mass, water, and bone mass | Users: Eight

Best for Beginners: WYZE Scale

WYZE Scale
Pros
  • Affordable

  • Tracks 12 metrics

  • Measures heart rate

  • Coated sensor glass

Cons
  • Mediocre app

  • No Wi-Fi connectivity

For those purchasing their first smart scale, the Wyze Scale is truly the best bang for your buck. It offers all the features one needs to begin tracking their weight and body composition metrics long-term. Filled with features, it calculates 12 essential metrics including weight, visceral fat, basal metabolic rate, bone mass, and more.

Recognizing up to eight user profiles, the Wyze Scale tracks and saves each user’s progress. Weight and body fat percentages are presented on the LED display while all other metrics sync via Bluetooth to the Wyze app. This smart scale is also compatible with popular fitness apps. 

Unlike other smart scales, the Wyze Scale features full surface sensors that are built into the glass platform for quicker and more accurate measurements. This scale is available in black and has a weight capacity of 400 pounds.

Weight Capacity: 400 pounds | Connectivity: Bluetooth | Metrics: Weight, body fat percentage, heart rate, lean body mass, BMI, muscle weight, visceral fat, basal metabolic rate, bone mass, metabolic age, protein, and body water percentage | Users: Eight

Best for Measuring Body Fat: Omron Body Composition Monitor with Scale

Omron Body Composition Monitor with Scale
Pros
  • Measures body fat percentage

  • Retractable cord for people up to 6 feet 6 inches tall

  • Easy to read LCD display

  • Accurate measurements

Cons
  • No Wi-Fi or Bluetooth connectivity

  • Not for those who are pregnant or have a pacemaker

The Omron Body Composition Monitor and Scale provides full-body sensing to help users gain further insights into their unique body composition. For the highest degree of accuracy, body fat percentage is calculated using a retractable handheld sensor that takes measurements from both the hands and feet. The Omron Body Composition Monitor and Scale is suitable for adults up to 330 pounds and 6 feet 6 inches tall.

Offered at a conservative price point, this smart scale measures weight, body fat percentage, BMI, skeletal muscle, resting metabolism, visceral fat, and body age. Accommodating four individual profiles per scale, the Omron scale stores memory for up to 180 days.

A large LCD display allows for easy-to-read results while an on-and-off switch at the base conserves battery life.

Weight Capacity: 330 pounds | Connectivity: None | Metrics: Weight, body fat percentage, BMI, skeletal muscle, resting metabolism, visceral fat, and body age | Users: Four

Best Features: FITINDEX Bluetooth Body Fat Scale

FITINDEX Bluetooth Body Fat Scale
Pros
  • Affordable

  • Syncs with multiple apps

  • Unlimited users

  • Tracks 13 metrics

Cons
  • Confusing setup

  • Mediocre app

The FITINDEX Bluetooth Body Fat Scale is an affordable yet powerful smart scale measuring 13 key insights. Using bioelectrical impedance analysis (BIA), the FITINDEX scale calculates everything from weight to body age and everything in between.

The accompanying FITINDEX app allows users to monitor progress and set goals. This app is also compatible with third-party fitness apps, syncing with users' Apple Health, Google Fit, Fitbit, and Samsung Health profiles.

This scale comes in black and white and features a tempered glass platform with four sensitive electrodes in each corner. It requires three AAA batteries and has a weight capacity of 396 pounds.

Weight Capacity: 396 pounds | Connectivity: Bluetooth | Metrics: Weight, BMI, body fat percentage, water percentage, skeletal muscle, fat-free body weight, subcutaneous fat, visceral fat, muscle mass, bone mass, protein, basal metabolism, and body age | Users: Unlimited

Best Design: Qardio Base2 WiFi Smart Scale and Body Analyzer

Qardio QardioBase 2 Smart Scale Body Analyzer
Pros
  • Works on any surface

  • Emoji mode included

  • Pregnancy mode

  • Sleek and modern design

Cons
  • Customer service issues

  • Body fat percentage may be slightly off

For those seeking a scale with a minimalistic aesthetic, look no further than the QardioBase 2 Wi-Fi Smart Scale. Featuring auto user detection, this scale automatically recognizes each user with personalized greetings and motivational messages. 

This smart scale calculates weight, BMI, and full body composition, including body fat percentage, muscle mass, water, and bone mass. Additionally, this scale features four specialty modes to fit all health needs, including normal, smart feedback, and pregnancy mode.

Sleek and disk-shaped, the QardioBase 2 flaunts an elegant yet minimalist design that blends into any room and operates on all surfaces. It’s offered in Arctic White and Volcanic Black, with a weight capacity of 396 pounds. 

Connecting wirelessly with the free Qardio app, users can easily track and organize their measurements as well as sync data with a variety of popular fitness apps. Along with the overall look, the QardioBase 2 is extremely low maintenance. It runs on a rechargeable battery which lasts for up to one year after the initial charge.

Weight Capacity: 396 pounds | Connectivity: Bluetooth and Wi-Fi | Metrics: Weight, BMI, body fat percentage, muscle mass, water, and bone mass | Users: Eight

Best with App: eufy by Anker Smart Scale P1 with Bluetooth

Pros
  • Four auto-calibrating sensors

  • Intuitive EufyLife app

  • Affordable

  • Easy setup and easy to use

Cons
  • Doesn’t support Wi-Fi

  • Not suitable during pregnancy

Sufficient for the whole family, the Eufy Smart Scale P1 tracks the health and wellness of up to 16 users. Two G-shaped sensors enable the scale to accurately track 14 body composition metrics, including unique measurements like bone mass and protein

This smart scale is user-friendly, using Bluetooth to pair with the intuitive EufyLife app for easy and secured health tracking. With the user’s privacy in mind, all data is encrypted before syncing with the app. Users can also sync their data with popular fitness apps, including Apple Health, Google Fit, and Fitbit. 

This glossy black smart scale blends into any room, featuring an anti-slip top plate and a low, stable platform. Rounded edges protect from accidental bumps. The Eufy Smart Scale P1 features an extra-large LED readout that displays weights up to 396 pounds.

Weight Capacity: 396 pounds | Connectivity: Bluetooth | Metrics: Weight, body fat percentage, BMI, water, basal metabolic rate, visceral fat, body age, body fat mass, lean body mass, bone mass, muscle mass, muscle, and protein | Users: 16

Best Glass: Arboleaf Digital Scale

Arboleaf Digital Scale
Pros
  • Low battery and overload indication

  • Tracks data in the Arboleaf app

  • Rounded corners for safety

Cons
  • Not for those who are pregnant or have a pacemaker

  • Data syncing to app may take time

The Arboleaf Digital Scale is Bluetooth compatible for convenient long-term weight management. This smart scale records ten key body composition metrics, and it features four high-precision sensors that show you the data in a matter of seconds. The scale runs on three AAA batteries and has a weight capacity of 396 pounds.

With the compatible Arboleaf app, users can carry their health history in their pocket, with the option to sync their metrics with Fitbit, Apple Health, and Google Fit apps.

Available in black and white, this tempered glass smart scale with a digital display is designed with safety in mind. It features rounded corners to prevent accidental injury with a classic design that blends into any home decor. The Arboleaf Digital Scale accommodates unlimited users and features auto-recognition—so the scale will always identify the appropriate user profile.

Best with Wi-Fi: Garmin Index S2 Smart Scale

Garmin Index™ S2 Smart Scale
Pros
  • Sleek and compact design

  • High resolution digital display

  • Garmin ecosystem integration

  • Customization of stats

Cons
  • Expensive

  • Better for Garmin users

The Garmin Index S2 Smart Scale brings a whole new dimension to your health and training regimen. For up to 16 users, Garmin’s reliable Wi-Fi-enabled smart scale tracks a variety of metrics, including weight, BMI, body fat percentage, skeletal muscle mass, and more.

The Garmin Index S2 Smart Scale features a sleek design with a rugged glass platform and rounded corners offered in black and white. Discreet buttons allow for toggling between imperial and metric units, as well as resetting the scale.

This scale seamlessly syncs to the Garmin Connect app via Wi-Fi for data at your fingertips. Whether you’re an existing Garmin fitness tracker user or new to the brand, the Garmin Connect app allows you to customize your wellness journey by choosing which stats you wish to see along with short- and long-term weight trends, graphs, and data.

This scale has a weight capacity of 400 pounds.

Weight Capacity: 400 pounds | Connectivity: Wi-Fi | Metrics: Weight, BMI, body fat percentage, skeletal muscle mass, bone mass, and body water percentage | Users: 16

Best for Babies: Hatch Baby Grow Smart Changing Pad and Scale

Hatch Scale
Pros
  • Easy to clean

  • Track and share data

  • Intuitive app

  • Tasteful design

Cons
  • No digital readout

  • Results can vary on different surfaces

Parents of newborns have their hands full, and tracking multiple health metrics often requires a variety of tools. A regular adult scale doesn't provide the sensitivity and accuracy needed for newborn babies, particularly babies under a month old. But the Hatch Baby Grow scale measures weight to one-fourth of an ounce.

The tabletop scale features a soft, water-resistant foam that's easy to clean. It also has a contoured design that comfortably cradles your baby while the safety belt provides added security. Made from ABS plastic, the scale is BPA-, PVC-, latex-, phthalate-, and lead-free, and antimicrobial.

It records weight, length, nursing sessions, diaper changes, sleep patterns, and feeding, and you can keep track of the data with the compatible Hatch Baby app. The intuitive app offers charts and graphs with the option to compare growth percentiles with recent WHO data. 

The wireless Hatch Baby Grow Smart Changing Pad and Scale measures 29 x 16 x 3.5 inches and runs on three AA batteries. It’s offered in white and grey and has a maximum weight capacity of around 44 pounds.

Weight Capacity: 44 pounds | Connectivity: Bluetooth and Wi-Fi | Metrics: Weight, length, nursing sessions, sleep patterns, diaper changes, pumping amounts and feedings—bottle or breast—photos, and notes | Users: Two

Final Verdict

For an easy-to-use smart scale that allows for unlimited users, we suggest the RENPHO Body Fat Scale (view at Amazon). This Bluetooth scale has a 396-pound weight capacity and measures 13 body composition metrics. The user-friendly companion app allows you to track your progress to easily share stats with family and physicians.

If your main priority is measuring body fat percentage, Dr. Rosenfeld recommends the Omron Body Composition Monitor (view at Amazon). “This scale is beneficial because, unlike the other scales that measure the bioelectrical impedance from only two points—your feet—,the Omron scale has two retractable handles that allow measurements from four points—your hands and your feet," she said. This scale has a weight capacity of 330 pounds and accommodates four individual profiles.

What to Look for in a Smart Scale

Fitness App Compatibility

Many smart scale models offer their own weight tracking app. For those who already use third-party fitness tracking apps and prefer to sync their existing health stats with weight tracking, look for a smart scale that interfaces with your preferred app.

The Withings Body Cardio Smart Scale (view at Amazon), for example, is compatible with over 100 fitness tracking apps, such as MyFitnessPal, Noom, WW, Fitbit, RunKeeper, Apple Health, Google Fit, Strava, and many more.

Bluetooth and Wi-Fi Connectivity

Most smart scales are equipped with Bluetooth connectivity, allowing them to sync data with compatible tracking apps. The downside to Bluetooth scales is that you must have your smartphone within range to successfully log results. While some scales can save the results until the next sync, most low to moderately priced scales will not. 

Some smart scales are enabled with both Bluetooth and Wi-Fi connectivity, allowing you to interface with devices such as Alexa or Google Home. Wi-Fi-enabled smart scales on the other hand, tend to be more reliable and easier to use as Bluetooth can sometimes be unpredictable. If the scale is within signal from a Wi-Fi router, it will sync. The one downside to a Wi-Fi-enabled scale is that they tend to be more expensive.

Metrics

Smart scales offer insight into our body composition, sharing much more than just weight. Features to consider when selecting a smart scale include body mass index (BMI), muscle mass, body fat percentage, bone mass, body water percentage, and more.

Weight Capacity

All scales have a maximum weight capacity. Before purchasing, ensure the scale can hold your weight.

Pregnancy Mode

Digital and smart scales use bioelectrical impedance analysis (BIA) to measure advanced metrics like body fat and body water percentage. Those who are pregnant or who have a pacemaker or implant are warned against using these scales.

Instead, there are models that feature a pregnancy mode without BIA, like the Withings Body Cardio (view at Amazon) and the QardioBase 2 (view at Amazon) scales.

FAQs

Are smart scales accurate?

While there are many factors that can affect the accuracy of a smart scale, they tend to be accurate for measuring weight and BMI. That said, there tends to be more variability when looking at the other measurements, such as body fat percentage and bone mass, according to Dr. Rosenfeld. 

To garner the most accurate weight tracking data, she advises patients to step on the same exact scale each time to gauge the body’s weight fluctuations and trends. "Whenever you are using any body fat composition scale, it is best to avoid eating or drinking three hours prior to weighing yourself, so you can achieve the best possible results," she said.

How does a smart scale calculate body fat?

Smart scales calculate your estimated body fat percentage using bioelectrical impedance. Sensors underneath the feet send an undetectable electric current from one foot through the body to the other foot.

Vladimir Karpukhin, MSBCR (Medical Bariatric Surgery Clinical Reviewer) at Cedars-Sinai Marina del Rey Hospital notes that electricity is conducted in the body by the water present in the muscle tissue. “In contrast to water, fat is a poor conductor of electricity. The more electrical current resistance encountered, the higher the percentage of fat in the body," he said.

How do smart scales measure bone density?

A smart scale can estimate bone mass using the same principle, but one needs to have a DEXA scan (dual-energy X-ray absorptiometry) to measure bone density. "The bones are poor conductors of electricity, compared with other tissues," Karpukhin said. "Thus, electrical current resistance allows smart scales to calculate bone mass." 

How to reset a smart scale

Every smart scale has different reset instructions, so refer to the manual. Some scales will have a hidden reset button to push, making it simple to reset. Smart scales with batteries sometimes require a series of steps to recalibrate the system, including removing the batteries and letting the scale sit for ten minutes.

Why Trust Verywell Fit?

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, smart scales gather precise health information on one device, which previously required multiple.

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  1. Zeng Q, Dong S-Y, Sun X-N, Xie J, Cui Y. Percent body fat is a better predictor of cardiovascular risk factors than body mass indexBraz J Med Biol Res. 2012;45(7):591-600.