The best smart scales can offer you more than just telling you how much you weigh. While analog scales have a single dial indicating your weight in metric or imperial measurements, smart scales can provide a better overall picture of your health. They do this by offering you metrics such as your body fat percentage, muscle mass, bone density, and even your heart rate, all through the soles of your feet.
This is usually done via a process called biometric impedance analysis, or BIA. Smart scales utilize BIA by sending a current of electricity from your feet through to your body. The electrical current travels through your fat, muscle, and bone at different speeds due to the different tissue densities, and because the current records the speed at which it travels, it can tell you how much of each you have in your body.
The best part of all that is that it’s very easy to learn how to use a smart scale. Most of them give you your stats simply by you stepping on them, once you've set them up. Most can connect to an app, via Wi-Fi or Bluetooth, and add your measurements to ecosystems like Fitbit, Google Health Connect, or Garmin Connect automatically. Together with the best fitness trackers or best smartwatches from these ecosystems, you'll get a far more complete picture of your health than you would using either device alone.
We’ve put the latest smart scales from Garmin, Withings and Eufy through their paces, testing how easy they are to use and initially set up, if their readings are accurate and consistent, how they sync with their adjoining apps, and to see if the information they present to us gives us a clear picture of our health.
The best smart scales 2023
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The Xiaomi Mi Body Composition Scale 2 takes our number one place as the best smart scale you can buy today. Not only is it a breeze to set up, it also delivers accurate and consistent body composition data that you can track easily in the Mi Fit smartphone app.
The design is sleek and minimalist, the display (which only appears when the scale is in use) is bright and easy to read while standing up, and the non-slip glass platform feels sturdy and stable underfoot.
In our tests, we were particularly impressed by the simplicity of the whole process. If you only want to see your weight then no setup is required at all, but the scale allows up to six people to keep profiles with comprehensive stats including fat and muscle mass, BMI, and even estimated basal metabolic rate.
Your weight and body composition stats will sync with Google Fit, Apple Health and Samsung Health automatically, and if you own a Xiaomi fitness tracker like the Mi Smart Band 6, it's even easier to recommend, as all your health and wellbeing data will be gathered together in one place.
Read our full Xiaomi Mi Body Composition Scale 2 review
The Eufy Smart Scale C1 is refreshingly fast and easy to set up. Just install the app, enter your name, height and gender, and you're ready to step aboard and start weighing. It takes mere seconds, and the scale can track up to 16 users (it will identify each person according to their weight and body stats).
Weight and body composition data was in line with that recorded by professional scales at our gym, and results were consistent across multiple weigh-ins.
There's no Wi-Fi connectivity, which means you'll need to have your phone within Bluetooth range in order to sync your data, but that's not a serious hardship – particularly since the scale can store up to 100 readings between syncs if it's out of range.
This is one of the smallest scales we've tested, with a platform measuring 28 x 28cm. That makes it handy for small bathrooms where storage space is at a premium, but if you sometimes struggle with balance then you might find one of the many Withings Body smart scales a better choice.
Read our full Eufy Smart Scale C1 review
The Withings Body+ is another superb smart scale, with all the essential features you need for monitoring your health and weight. Setup isn't quite as effortless as the Eufy Smart Scale C1, but it's still straightforward, and if you have any other Withings devices (like a Withings Scanwatch, for example), all the data from these will be collated with info from your scale in one convenient dashboard.
The app also pulls in data from third-party apps like Apple Health and Google Fit, letting you see stats like your activity levels, and compare them with your changing weight and body composition metrics. If you're interested in getting a detailed overall picture of your health and developing better habits, it's a great choice.
Like Withings' other scales (listed below). the Body+ is well designed has a particularly large, bright display that's easy to read when standing up, and a sizeable toughened glass platform that makes it easy to balance. Measurements are consistent, and comparable with those from professional gym scales.
It's not the cheapest smart scale around, but the integration with other apps, devices and services is exceptional, and makes it easy to recommend.
Read our full Withings Body+ review
The Withings Body Cardio is the company's most advanced smart scale. Not only does it give an accurate measurement of your weight, muscle mass, body fat and so on, it can also provide an indication of your overall cardiovascular health, and help you take action to improve it.
The scale can measure both standing heart rate and pulse wave velocity. A lower heart rate is generally a sign of better fitness, while pulse wave velocity indicates how flexible your arteries are. Stiffer arteries mean your heart has to work harder to pump blood around your body.
If that sounds confusing, don't worry – it's all clearly explained when your data is synced with the Withings Health Mate app (via either Bluetooth or Wi-Fi). together with practical advice to help you improve your readings.
This isn't a scale you'll want to be carrying often (it's much heavier than the others in this listing), but its two-layer design with no feet means it can be used on any type of floor. That's a real win if you want to weigh yourself in a carpeted bedroom – electric scales are usually only suitable for hard floors,
This is a premium scale, and has a price tag to match, but if you're interested in making long-term changes and improving your fitness rather than just losing weight, it could be well worth the investment.
Read our full Withings Body Cardio review
Eufy's Smart Scale P2 Pro is a feature-rich full-body monitoring system that can measure 16 different metrics for multiple members of your household, including pets and babies. But this smart measuring device can do more than just measure weight and body fat – the P2 Pro can also measure resting heart rate, protein percentage and body age, among other things.
But wait, there is more! Via the EufyLife app, you can also log your food intake – just like in MyFitnessPal – and set goals, create weekly/monthly reports, check daily/weekly/monthly/yearly trends and more. Needless to say, the more you use the scale, the better, as frequent measurements will help the app and the scale build a more accurate picture of your body.
Sadly, not all measurements are accurate, especially fat calculations. During our testing, both visceral and subcutaneous fat levels were reported as high, despite the overall body fat level being in the normal range. Even more strangely, this overall fat level was also much higher than expected; our reviewer had a DEXA scan done and been given a fat score of 12% three months prior to testing the Eufy P2 Pro, yet the scale said he had 21% body fat – and that's without any visible changes in physique.
Resting heart rate and, therefore, basal metabolic rate (BMR) measurements also seem off. Nevertheless, we enjoyed using the Eufy P2 Pro, and considering the low price, it's easy to look past the scale's flaws and appreciate its many useful features. The P2 Pro might not be the best smart scale on the market, but it's worth the money – not to mention, it syncs with third-party apps such as Apple Health, Google Fit and even Fitbit.
Read our full Eufy P2 Pro review
The Wyze Scale X is a solid budget alternative to some of the other smart scales in this list. With 13 different metrics (body fat, muscle mass, body water, lean body mass, bone mass, protein, visceral fat, BMR, metabolic age, muscle mass percentage, and pulse checker) it's a pretty comprehensive package, along with modes for pregnancy, babies and pets. It's a swish-looking machine, and definitely worth the money its retailing for.
However, there's a couple of small design issues here that stop it from being a must-buy. For one thing, the in-app presentation of these metrics can get a bit confusing. There's only a couple of ways the information is presented, and most of these use a green sliding scale without offering too much information about your results. Are they good? Bad? Average for your sex, height and weight? Sometimes, it's hard to tell, especially with the more esoteric metrics.
Nevertheless, it's a good, solid smart scale for the price, effectively telling you your weight, body composition, body fat percentage and loads more. Well worth picking up if you're after a budget smart scale.
Read our full Wyze Scale X review
The Garmin Index S2 is another Wi-Fi-enabled body composition smart scale, that delivers accurate, consistent results. Its screen is particularly high resolution, which allows you to see detailed graphs of your weight over time.
Data from the scale syncs with the Garmin Connect app, which you'll already be familiar with if you own one of the company's running watches or fitness trackers, allowing you to see all your health data in one convenient place. Garmin Connect also synchronizes with a bevy of third-party fitness and diet apps, including MyFitnessPal, Nike+ and Noom to name just a few, so you don't have to enter data from your weigh-ins manually.
We'd appreciate a little more context around each of the metrics shown in the app (for example, it would be helpful to know whether your muscle mass is normal for your age and gender, and how close it is to the boundaries) but this is nevertheless a great smart scale if your budget will stretch to it.
Read our full Garmin Index S2 review
How to choose the best smart scale for you
The top smart scale for your needs is likely going to be the one that suits your lifestyle. Firstly, there are budget considerations to be made. However, most of the scales on this list can be picked up fairly cheaply, at least compared to other pieces of smart technology.
If you’re just looking for a simple body composition-measuring device that doesn’t cost the earth, you may want to check out the uncomplicated, relatively affordable Eufy Smart Scale C1 or Eufy P2 Pro, as both are very comprehensive and offer you great value for the price.
It’s also worth considering the tech you already own and factoring that into the decision you make. For example, if you’re already heavily invested in the Fitbit economy (i.e. you own one of our best Fitbits and you subscribe to Premium), you may want to pick up one of Fitbit’s Aria-branded scales, which can
upload your data automatically to your Fitbit app. On the other hand, if you already own one of our best Garmin watch picks, the Garmin Index S2 might be the only scale that makes sense for you, as it interfaces in a similar fashion with the Garmin Connect network.
Finally, you obviously want something that looks nice if you're going to be leaving it out to step on every day. Most of the above scales look sleek with their glass platforms, but some can be found in multiple colorways. All are pretty slender, so if you can't find one that fits your vibe, you can always tuck it in a cupboard out of the way when guests are over.
Why get a smart scale?
Measuring your weight can have a positive impact on your weight loss efforts. One study published in the Journal of the Academy of Nutrition and Dietetics found a daily weighing habit improved overall weight loss in overweight participants. Smart scales can take these measurements and automatically upload it to an app, so you can better keep track of your progress. Whether you're trying to build muscle, lose fat or simply stay a healthy weight, smart scales are a powerful tool.
However, for some people, weighing themselves too often can create a challenging relationship with their bodies, especially those who are just beginning a weight management journey. It could potentially lead to unhealthy habits and disordered behavior, so if you see the signs that you're weighing yourself compulsively or too often, don't be afraid to take a break from the scale.
Likewise, if you do have issues around your weight or numbers on a scale are particularly triggering for you, a smart scale may not be the best option to keep you healthy.
How we test smart scales
As you can see in the entries above, we test each smart scale comprehensively. We look at the design of the scale, and that’s not just about looks: we check out whether it’s difficult or easy to set up, how complicated it is to operate, and the design of the companion app if it has one.
We also examine its features, such as what metrics the scale gives you, how many of these are useful, and if the scale requires batteries to be replaced rather than recharged. Finally, we look at its performance, checking its accuracy against its competitors. Check out our how we test page for more.