The Best Smart Weight Scales of 2024, with Analysis of Tech Features and Apps

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Any bathroom scale can tell you your body weight, but the best smart scales take things a step further. In addition to giving you a basic weight reading, smart scales measure more detailed body composition metrics, such as body mass index (BMI), body fat percentage, fat mass, muscle mass and water mass. Like fitness trackers, some also include biometric measurements like heart rate and oxygen level. Smart fitness scales aren't just for people trying to lose weight. Athletes, bodybuilders and fitness competitors may also benefit from being able to track metrics to help them stay on target.

These metrics can give you more insight into what’s going on with your body. For example, they’re a great tool when you’re starting a new strength training or weight loss program and may be adding lean muscle, while losing body fat (but staying the same weight).

In this guide, we rounded up the best smart weighing scales of 2024, from budget options to luxury picks. We included options that display metrics right on the scale and others that rely on connected fitness and weight loss apps. We’ll also discuss the main reasons to buy a smart weight scale and how to choose the right one for you.

Our Picks for the Best Smart Scales of 2024:

• Most Accurate Smart Scale: Oxiline Scale X Pro
• Best Smart Scale for Measuring Water Weight: Eufy Smart Scale P2
• Best BMI Smart Scale: Oxiline Scale X Pro
• Best Smart Scale for Measuring Body Fat: Renpho Smart Body Fat Scale
• Best Budget Smart Scale: Wyze Smart Scale
• Best Luxury Smart Scale: Garmin Smart Scale Index S2
• Best Smart Scale for Fitbit Users: Fitbit Aria Air
• Best for Multiple Users: Oxiline Scale X Pro
• Best Smart Scale for Apple Watch Users: Withings Body+ Body Composition Scale

Most Accurate Smart Scale: Oxiline Scale X Pro

Key features & specs:

• Size: 11 inches L x 11 inches W x 1 inch H
• Weight: 3.95 pounds
• Connectivity/apps: Fitdays Health, Fitbit, Google Health, Samsung Health, Apple Health
• Weight capacity: 396 pounds
• Metrics: Body weight (pounds and kilograms), BMI, body fat percentage, protein percentage, muscle mass, muscle rate percentage, visceral fat percentage, subcutaneous fat percentage, basal metabolic rate (BMR), heart rate, heart index, body water percentage, bone mass weight, body age, fat-free body weight, skeletal muscle 
• Number of users: Unlimited
• Standout features: 12 Echo sensors, 16 measurements
• Price: $199

You may be wondering, "How can an at-home smart scale give accurate measurements and comprehensive readings?" The most accurate smart scale currently available is arguably the Oxiline Scale X Pro. This scale relies on futuristic technology by way of its 12 built-in Echo sensors, designed to send signals up the body to measure metrics like body fat percentage and skeletal muscle.

Eight of the metrics are displayed on the scale, and you can see the comprehensive list of metrics via the synced-up Fitdays Health app. The Echo sensors auto-calibrate to get the most accurate data on your body. Thanks to its precise measurements we think this is one of the best scales for weight loss.

App capabilities

Syncing up with the Fitdays Health app provides you with 16 total metrics to keep tabs on, and with unlimited user profiles, you can get readings as often as you’d like. The Fitdays Health app isn’t the only application you have to use with the X Pro. The scale has the capacity to connect to other apps, like Google Health and Fitbit.

Pros:

• 16 available metrics
• Uses signals and sensors to gauge body conditions
• Compatible with popular apps 

Cons:

• Some users state it will not work if you have socks on
• Expensive

Best Smart Scale for Measuring Water Weight: Eufy Smart Scale P2

Key features & specs:

• Weight: 3.74 pounds
• Size: 11.02 inches L x 11.02 inches W x 1.02 inches H
• Connectivity/apps: Eufy app, Apple Health, Google Fit, Fitbit
• Weight capacity: 397 pounds
• Metrics: Body weight, body fat percentage, BMI, body fat mass, lean body mass, protein, BMR, visceral fat, muscle, muscle mass, bone, body age, bone mass, subcutaneous fat and water percentage
• Number of users: Unlimited
• Standout features: Automatic user detection, 14 body measurements
• Price: $49.99

Your body contains about 60 percent water, which means it counts for a big percentage of your total weight. However, this number can fluctuate based on how hydrated (or not) you are and if your body is retaining water for some reason. A regular bathroom scale would just go up and down with these water changes. However, the Eufy Smart Scale P2 can give you precise measurements that tell you exactly what percentage of your total weight is coming from water.

We think the Eufy is one of the best weighing scales because it provides 15 other measurements, including body weight, body fat percentage, BMI, body fat mass, lean body mass, protein, BMR, visceral fat, muscle, muscle mass, bone, body age and bone mass.

SI Showcase team member Suzie Gomez tried out the Eufy smart scale and says it's a game changer for weight management. "I can confidently say that it's made weighing myself a more enjoyable experience. The scale has a user-friendly and sleek app," said Gomez. "I'm still figuring out how accurate all of Eufy's body measures are, but the app's weight tracker is spot-on."

App capabilities

When you weigh yourself, body weight is displayed on the screen, but the remaining metrics are sent via Bluetooth to the Eufy app or the third-party app of your choice. If you’re not connected to an app, the scale itself can store up to 100 readings and will automatically sync when you do connect.

Pros:

• Waterproof
• Unlimited number of users
• Provides 15 body metrics

Cons:

• Only displays body weight on the scale
• Requires four AAA batteries
• May be too small for larger size feet

Best BMI Smart Scale: Oxiline Scale X Pro

Key features & specs:

• Size: 11 inches L x 11 inches W x 1 inch H
• Weight: 3.95 pounds
• Connectivity/apps: Fitdays Health, Fitbit, Google Health, Samsung Health, Apple Health
• Weight capacity: 396 pounds
• Metrics: Body weight (pounds and kilograms), BMI, body fat percentage, protein percentage, muscle mass, muscle rate percentage, visceral fat percentage, subcutaneous fat percentage, basal metabolic rate (BMR), heart rate, heart index, body water percentage, bone mass weight, body age, fat-free body weight, skeletal muscle
• Number of users: Unlimited
• Standout features: 12 Echo sensors, 16 measurements
• Price: $199

Body mass index (BMI) factors in your weight and height to give an estimate of body fat percentage. It doesn’t measure body fat directly, but it does give you clues about whether you’re underweight, at a healthy weight or overweight. (However, it's important to note that BMI is becoming less of a common measurement for health, as it doesn’t factor in things such as muscle vs. fat and metabolic health, which can lead to an inaccurate picture of overall health.)

We think the Oxiline Scale X Pro is one of the best fitness sales on the market due its specialized sensors. These sensors use signals to determine BMI, the Oxiline Scale X Pro is designed to pinpoint accurate BMI data along with 15 other metrics, like bone mass weight and basal metabolic rate.

App capabilities

As you use the X Pro, the scale syncs up with the Fitdays Health app to give you real-time readings, as well as record your data over time. You also have the option to use other apps to track your progress, including Apple Health, Samsung Health and Fitbit Tracker.

Pros:

• Sensors trace BMI and other measurements by way of sending signals through the body
• 16 total measurements tracked, including BMI
• Syncs with popular health-tracking apps

Cons:

• Specialized tech drives up price
• Weight limit of 396 pounds

Best Smart Scale for Measuring Body Fat: Renpho Smart Body Fat Scale

Key features & specs:

• Weight: 3.09 pounds
• Size: 11 inches L x 11 inches W x one inch H
• Connectivity/apps: Renpho Health, Apple Health, Google Fit, Samsung Health and Fitbit
• Weight capacity: 400 pounds
• Metrics: Body weight, body fat, BMI, subcutaneous fat, visceral fat, body water, skeletal muscle, muscle mass, bone mass, protein, metabolic age and BMR
• Number of users: Unlimited
• Standout features: Unlimited users, baby- and pet-weighing mode
• Price: $34.99

The Renpho Smart Body Fat Scale has four high-precision sensors that use bioelectrical impedance analysis (BIA) to measure body fat. BIA involves measuring the rate at which painless, low-level electrical currents travel through the body. Without getting too technical, this can provide data on how much body fat and fat-free mass you have.

SI Showcase team member Emma Witman uses this scale and gives it a solid thumbs-up. “I stood on this scale every day when I was following the Noom program, and the reliability was really reassuring, since there weren’t any inexplicable fluctuations in weight or body fat like I’ve experienced with other scales," Witman said.

In addition to body fat, the Renpho smart scale gives a regular weight measurement, as well as BMI, subcutaneous fat, visceral fat, body water, skeletal muscle, muscle mass, bone mass, protein, metabolic age and BMR. The Renpho smart scale supports unlimited users, so you can share it with your whole family. It also has a baby- and pet-weighing functionality, which is a fun additional feature.

App capabilities

Body weight shows on the digital screen, but the other metrics are sent to the Renpho Health app. The app can track several body composition metrics, including weight and body fat, and convert stored data into charts and reports. Renpho Health also works with apps including Fitbit, Samsung Health, Google Fit, and Apple Health.

Pros:

• Includes pet mode and baby mode
• Supports unlimited users
• App is user-friendly

Cons:

• Android devices have to enable location to connect to scale
• Only shows body weight on screen
• Full data doesn’t always sync with third-party apps

Best Budget Smart Scale: Wyze Smart Scale

Key features & specs:

• Weight: 4.07 pounds
• Size: 12-inches L x 12-inches W x one-inch H
• Connectivity/apps: Wyze app, Apple Health, Google Fit
• Weight capacity: 400 pounds
• Metrics: Body weight, body fat, heart rate, lean body mass, BMI, muscle weight, visceral fat, basal metabolic rate, bone mass, metabolic age, protein levels and body water percentage
• Number of users: Eight
• Standout features: Wi-Fi and Bluetooth connectivity, automatic user detection
• Price: $23.99

Many smart fitness scales use Bluetooth technology to send data to the corresponding app, but only a handful rely on Wi-Fi instead. Not only is Wi-Fi faster, but it tends to be less glitchy since data gets sent to the Cloud instead of directly to your phone via Bluetooth. This also means you don’t have to have your phone connected to the scale to sync data. The Wyze Smart Scale has both connectivity options, so you can choose the one you prefer.

Either way, it monitors 12 body metrics—body weight, body fat, heart rate, lean body mass, BMI, muscle weight, visceral fat, basal metabolic rate, bone mass, metabolic age, protein levels and body water percentage. This smart fitness scale supports up to eight users, and will automatically detect who’s on the scale to send the data to the right account.

App capabilities

Body weight and BMI are displayed on the scale’s screen, but the other stats are immediately sent to the Wyze app, where you’ll see the numbers as well as a detailed breakdown of what they mean. You can also sync the Wyze app to Apple Health, Google Fit and other third-party apps. 

Pros:

• Displays body weight and BMI on screen
• Wyze app gives additional information about each metric
• Has automatic user detection

Cons:

• Only shows whole pounds on scale
• Some users report instability

Best Luxury Smart Scale: Garmin Smart Scale Index S2

Key features & specs:

• Weight: 4.4 pounds
• Size: 12.6-inches L x 12.2-inches W x 1.1-inches H
• Connectivity/apps: Garmin Connect app
• Weight capacity: 400 pounds
• Metrics: Body weight, weight trend over time, BMI, body fat percentage, body water percentage, skeletal muscle mass and bone mass
• Number of users: 16
• Standout features: Customizable display, weather widget
• Price: $149.99

Garmin may be most well-known for its GPS technology, but the brand has since expanded into sports and fitness gear, smartwatches and smart scales. The Smart Scale Index S2 is the most advanced model in the line, and one of the most user-friendly smart scales on the market. It measures seven metrics, including body weight, weight trend over time, BMI, body fat percentage, body water percentage, skeletal muscle mass and bone mass. All data is quickly sent via Wi-Fi to the companion app, which is called Garmin Connect.

The scale itself has an LCD screen that’s fully customizable in the app. The scale can accommodate up to 16 users, and each user can set goals and sync their own stats in the app.

App capabilities

You can use the Garmin Connect app to select the stats you want to see on the scale, choosing from the basic metrics, a comparison of subsequent weigh-ins and more. If you don’t want to see advanced health metrics, you can also set it to a weight-only option.

Pros:

• Display can be customized
• Uses Wi-Fi
• Tracks 30-day weight trend without the app

Cons:

• Expensive
• Not as many metrics as some others

Best Smart Scale for Fitbit Users: Fitbit Aria Air

Key features & specs:

• Weight: 11.8-inches L x 11.8-inches W x 1 inch H
• Size: 3.95 pounds
• Connectivity/apps: Fitbit app
• Weight capacity: 400 pounds
• Metrics: Body weight and BMI
• Number of users: Eight
• Standout features: Syncs with Fitbit dashboard and Fitbit fitness trackers
• Price: $49.95

If you’re a dedicated Fitbit user, the Fitbit Aria Air is a no-brainer. The Bluetooth scale syncs with the Fitbit app, turning your data into easy-to-read graphs and charts that measure your progress over time. If you wear a Fitbit that’s also synced to the app, the charts will combine the data and show how your daily activity level affects your weight.

The Fitbit Aria Air can accommodate up to eight different users. Your weight automatically displays on the screen, but it will also sync to your own private Fitbit dashboard instead of getting stored in the scale. This smart scale doesn’t provide as many metrics as some of the others—it shows only body weight and BMI—but it’s a good choice if you just want to stick to the basics.

App capabilities

To sync the scale with the Fitbit app, just step on the scale with your smartphone nearby. You can use the app to track long-term trends and other information recorded by Fitbit trackers and watches. Your stats are displayed in easy-to-read graph form.

Pros:

• Can combine data from Fitbit fitness trackers
• User-friendly and easy to interpret
• Users report that it’s very consistent

Cons:

• Only shows two body measurements
• Doesn’t always auto-sync
• Users report that the app can be glitchy

Best for Multiple Users: Oxiline Scale X Pro

Key features & specs:

• Size: 11 inches L x 11 inches W x 1 inch H
• Weight: 3.95 pounds
• Connectivity/apps: Fitdays Health, Fitbit, Google Health, Samsung Health, Apple Health
• Weight capacity: 396 pounds
• Metrics: Body weight (pounds and kilograms), BMI, body fat percentage, protein percentage, muscle mass, muscle rate percentage, visceral fat percentage, subcutaneous fat percentage, basal metabolic rate (BMR), heart rate, heart index, body water percentage, bone mass weight, body age, fat-free body weight, skeletal muscle
• Number of users: Unlimited
• Standout features: 12 Echo sensors, 16 measurements
• Price: $199

Unlimited profiles and data whenever you need it, the Oxiline Scale X Pro is the best smart scale for multiple users looking to access their health data. Each user can track their progress over time via the Fitdays Health app, which connects to the scale so that you can also see all 16 offered metrics in real-time.

Equipped with 12 sensors, the scale sends signals through your body to get the most detailed readings of metrics like body fat percentage, heart rate, visceral fat percentage and muscle mass. If each person using the scale regularly uses different health apps like Samsung Health or Fitbit, those apps can also sync with the Oxiline Scale X Pro to record your data for you.

App capabilities

The Fitdays app is designed as a weight data recording application for multiple people, including families. You can view reports and charts that measure data from 17 parameters, such as weight, body fat, visceral fat and muscle rate. You can also use the data to generate a professional body analysis report.

Pros:

• Unlimited profiles
• Access data at any time via app
• Scale gives metrics in real-time and syncs with the app

Cons:

• Pricey
• Only eight metrics visible on scale

Best Smart Scale for Apple Watch Users: Withings Body+ Body Composition Scale

Key features & specs:

• Weight: 4.4 pounds
• Size: 12.8-inches L x 12.8-inches W x 0.9-inches H
• Connectivity/apps: Withings Health Mate, Apple Health and 100+ more
• Weight capacity: 396 pounds
• Metrics: Body weight, body fat percentage, total body water percentage, muscle mass and bone mass
• Number of users: Eight
• Standout features: Syncs with Apple Health, automatic user recognition, weather widget
• Price: $99.95

The Withings Body+ Body Composition Scale is the top pick for Apple Watch and iOS users. While it also works with Android, it effortlessly syncs with Apple Watch and Apple Health so you can keep track of all your data in one place. The Withings smart scale measures five metrics—body weight, body fat percentage, total body water percentage, muscle mass and bone mass. You can also add a weather widget that displays the current temperature.

Each metric will appear on the scale’s display along with an arrow icon that shows whether you’re trending up or down. The Withings smart scale also automatically sends the data to the app of your choice via Wi-Fi. If the scale can’t sync with the app for any reason, it will store up to 16 weight readings. The Withings smart scale has automatic user recognition, so it can identify up to eight different profiles.

App capabilities

The Withings Health Mate app provides insights on weight, body composition and BMI, but it's also a comprehensive health app. Other features include activity and sport monitoring, sleep analysis/sleep apnea detection and hypertension management. 

Pros:

• Supports Wi-Fi
• Can store up to 16 weight readings
• Automatic user detection

Cons:

• Have to reconnect to Wi-Fi when it turns off
• Some users report the scale feels flimsy

Benefits of Smart Scales

Smart scales are in a totally different category than regular bathroom scales. They can provide a deeper dive into your body composition and overall health, store historical data and may be more accurate. Here are the main reasons to buy a smart scale.

Additional body metrics

Regular scales give only one measurement: body weight. Smart scales provide additional body metrics, like BMI, body fat, muscle mass, water weight, metabolic age and visceral fat. This can give you a more comprehensive look at your overall health and can help you track progress outside of weight loss, gain or maintenance. That's why they are a helpful tool if you have weight loss goals or if you're an athlete, bodybuilder or fitness competitor.

For example, if your goal is to build muscle, a traditional scale may show you only that you’re gaining weight. However, a smart scale can give you body fat and muscle mass measurements, so you can track the specific changes to your body composition.

Long-term tracking

Unlike regular bathroom scales that just show a real-time weight measurement, smart scales store data and can measure trends over time. If you have a specific weight loss or fitness goal, this can help you track your progress and make adjustments as needed. Even better? The data is automatically sent to a companion app, so you don’t have to manually track anything yourself.

Better accuracy

While this hasn’t been officially tested, smart scales may be more accurate than regular scales. Many have advanced technology, called position tracking, that ensures you’re in the right position for the most accurate measurement. The scale will alert you if you’re not standing on it properly. This prevents you from shifting your weight too much to one side or moving around on the scale too much—something a regular scale can’t tell you.

Sync with other health apps

Some smart scales sync with other health apps, like Apple Health, Fitbit or MyFitnessPal. The app can then aggregate the data from your scale and your fitness tracker to give you insights about how your activity level may be affecting your weight. This can be especially useful if weight loss is one of your health goals.

How We Chose the Best Smart Scales

Accuracy

Of course, accuracy is one of the most important features of a smart scale. We dug into user reviews to assess other consumers’ satisfaction with the product. After all, unreliable data may hinder rather than help you with accountability toward your fitness goals.

Connectivity

It was important to us to choose devices with steadfast Bluetooth or Wi-Fi connectivity, since smart body scale users often want to sync up the information with their devices to track progress over time. There are some notable differences between Bluetooth and Wi-Fi. Bluetooth lets you connect devices together (like you scale and your phone), while Wi-Fi allows you to connect to the internet. Some smart scales rely on Bluetooth technology, while others are Wi-Fi-enabled. Both do the job, but scales that use Wi-Fi may transmit data to the app faster. These scales may also have additional features, like weather widgets.

Companion app

Ease of synching with these apps and the user-friendliness of the apps that accompany the smart weight scales were also factored into our calculus of the best smart scales.

Price

We chose smart scales that ranged in price to accommodate different budgets and price-points. Smart scales can cost as little as $20 or as much as $200, but a higher price tag doesn’t automatically mean the scale is better. There are excellent budget models that are accurate and provide the same metrics as luxury scales. 

How to Choose the Best Smart Scale for You

When choosing a smart scale, there are several factors to consider.

App compatibility

Most smart scales display body weight on the screen, but send additional data to an app. Sometimes you can only use a specific companion app that’s developed by the company, but oftentimes you can sync with more popular apps, like Apple Health, MyFitnessPal or Fitbit. If you already have a fitness or health app that you use and love, check to see if the scale is compatible with it. Other brands make a smart scale specifically for their app; for example, the Weight Watchers app is compatible with the WW Bluetooth Body Weight Scale by Conair.

Metrics

Some smart scales have only a couple of metrics, like body weight and BMI, while others can have as many as 14, including bone mass and water weight. More data isn’t necessarily better and can actually end up being overwhelming if you don’t know how to interpret it. Instead of going for the scale that gives the highest number of biometrics, determine what measurements you absolutely want to track, and then make sure your scale provides them.

Weight capacity

Scales have a weight capacity, meaning they max out at a certain weight and won’t provide readings beyond that. Most of the smart scales on this list go up to 400 pounds but make sure to check the fine print before purchasing a scale to make sure it can accommodate you.

Ease of use

If you’re switching from a basic bathroom scale to a smart scale, you want to make sure the transition is seamless and there isn't too much of a learning curve. Most smart scales are pretty straightforward and user-friendly; you download an app, connect the scale to it and then weigh yourself as normal. The scale then does all the calculations for you and sends that data to the app.

When choosing a smart scale, look for one that has automatic syncing, so you don’t have to worry about trying to manually send data. Automatic user detection is also helpful if more than one person will be using it and you don’t want to have to hassle with switching user profiles in between uses.

Smart Scale FAQs

Are smart scales accurate?

Smart scales are not as accurate as DEXA scans, but they can be a convenient way to estimate and track your body composition at home. In a small study comparing smart scales to in-person weight readings in a clinical setting, researchers found that the readings were the same. You can test the body weight readings by getting a 10-pound weight and putting it on the scale to see if the readout is accurate.

Do smart scales measure visceral fat?

Yes, some smart scales measure visceral fat, the type of fat that’s stored deep within the abdominal cavity. It’s important to know your visceral fat measurement since this type of fat is biologically active and can increase your risk of metabolic disorders and other chronic health problems. A 10 percent visceral fat level is average.

Can a scale measure BMI?

Yes, a scale can measure BMI, but research shows that this is a mostly inaccurate body composition measurement that doesn’t take individual factors in account, such as bone density and muscle (lean body mass).

There’s a more accurate measurement of body fat called the relative fat mass index (RFM). This measures the ratio of your waist circumference to your height. In one study published in the journal Nature in July 2018, researchers calculated the RFM for 3,456 adults in the US and found that the results closely matched what was shown on a DEXA body scan, the most accurate way to measure body composition.

What is the best time to weigh myself?

Many health experts recommend weighing yourself in the morning, but there’s no scientific consensus on when the “best” time is. If you’re trying to lose weight, what seems to matter more is that you weigh yourself daily, regardless of the time.

Who should not use a smart scale?

Most smart scales send small (painless) electrical currents through your body to measure your body fat percentage—a method called bioelectrical impedance analysis (BIA). Because of this, you should not use a smart scale if you have a pacemaker, implantable cardioverter defibrillator (ICD), cardiac resynchronization therapy-defibrillators (CRT-D) or similar implanted device.

Do smart scales keep my data private?

The best smart scale brands typically use security techniques like data encryption to keep your information private. End-to-end encryption, for example, lets you control who can access your smart scale biometrics shared within the paired app. Keep in mind that the smart scale brand’s privacy measures won’t extend to any third-party app that you also share health data with.

Final Thoughts

Any bathroom scale can give you your weight, but the best smart scales dig deeper, providing information about your body fat percentage, BMI, water weight percentage and more. Some smart scales also measure your heart rate, and can even tell you the weather. We think a smart scale is a practical investment if you have weight loss goals or are an athlete, bodybuilder or fitness professional who wants to track their weight and body composition.

Prices are accurate and items in stock as of publish time.