Buying a smart scale can feel surprisingly overwhelming. Most promise to measure everything from body fat to your metabolic age, but not every metric is equally useful, and not every app is worth your time. The best smart scales go beyond simply telling you what you weigh. They help you spot trends over time, whether you're training for a marathon, building muscle, trying to lose weight, or just keeping a closer eye on your health.
Most smart scales use a technology called bioelectrical impedance analysis (BIA), which sends a tiny electrical current through your body to estimate metrics such as body fat, muscle mass and body water. They combine these readings with information such as your weight, height, age and sex to calculate other figures, including BMI, metabolic rate and estimated daily calorie needs. Some models also offer specialist modes, such as pregnancy tracking, which can disable body composition measurements.
Every smart scale you'll learn about in this guide has been tested by one of our experts in our homes over days or weeks of use. We assess how accurate the readings are, how easy the companion app is to use, and whether the insights are genuinely useful rather than just impressive-looking statistics. We also rate each model for performance, value, features, and design.
Only products we've tested ourselves earn a recommendation, and we've revisited all of our top picks to make sure they still deserve their place in 2026. Whether you're buying your first smart scale or upgrading to something more capable, you'll find honest, hands-on recommendations here to help you choose the right one.
Matt is TechRadar's senior fitness and wearables writer, with over a decade of experience in writing about fitness and technology. He personally acts as a guinea-pig when reviewing fitness kit, using the smart scale to check key information and testing that information against external sources, such as gym scales and readings from other devices. He has curated this smart scales guide.
The best smart scales in 2026
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Below you'll find full write-ups for each of the best smart scales in our list. We've tested each one extensively, so you can be sure that our recommendations can be trusted.
The best smart scales overall
If you want to know more than what the bathroom scales say about your weight, the RunStar 8E SmartScan Pro is a great place to start. It tracks 28 metrics, with eight electrodes and a retractable handle providing a detailed breakdown of fat and muscle across five body zones. In testing, its readings were impressively close to those of the far pricier Withings Body Scan 2 (which you can read more about below in our 'best premium' category).
The easy-to-use app presents your results clearly and syncs with popular health platforms, including Apple Health and Google Health. Automatic user recognition also makes it handy for households sharing a set of scales, while USB-C charging means you can forget about stocking up on batteries.
There are a few corners cut to keep the price down. Our reviewer noted that the display feels a little cheap, and while the app does a good job of showing your stats, it won't offer much in the way of deeper analysis or coaching. There's no heart health tracking, either, so anyone after a more comprehensive health overview may want to look at pricier alternatives.
Small niggles aside, the RunStar 8E SmartScan Pro gets the important things right with detailed measurements, strong accuracy and a sensible price. If you're curious about what's behind the number on the scale, it's a smart upgrade.
Read our full RunStar 8E SmartScan Pro review
The best budget smart scales
We were blown away by the overall accuracy of the Vitafit Smart Bathroom Scales in our review, considering its incredibly cheap price tag. For a $20 smart scale, the Vitafit is very well built and sturdy, with a sleek design that will look right at home in your bathroom.
It's accompanying app is snappy and helpful, displaying lots of important information in the blink of an eye. Seamless connection is supplied by Bluetooth, and the app works on iPhone or Android.
It'll show you important metrics like weight, BMI, bone mass, basal metabolic rate, and more. It's got a generous weight limit of up to 180kg/400lb and support for limitless numbers of users. There's also functionality to weigh babies and children, so it makes a great scale for the whole family.
It's not perfect, and some of the body composition measurements lack the accuracy of more expensive alternatives, but at this price, it's hard to argue with as a budget pick.
Read our full Vitafit Smart Scale review
The best premium smart scales
The Withings Body Scan 2 makes a standard weigh-in look rather basic, adding a wealth of body composition and cardiovascular health measurements. Building on its predecessor, it tracks more than 40 health biomarkers, including blood oxygen levels, hypertension risk and estimates of your heart and vascular age. Its six-zone body composition analysis also breaks down fat and muscle distribution, while Wi-Fi syncing sends results to the Withings app without you having to reach for your phone.
In testing, its core measurements were impressively accurate, and the reinforced aluminium build feels suitably premium for a scale costing a meaty $599.95/£449.95. However, not all its newer health estimates were as convincing. Vascular age readings varied noticeably over a couple of weeks, so these are best treated as indicators of broader trends rather than definitive health assessments.
It's a hefty investment, particularly when some features sit behind a Withings+ subscription. The RunStar 8E SmartScan Pro offers similarly strong body composition readings for considerably less, but the Body Scan 2 justifies its premium positioning with its additional cardiovascular health tracking and overall quality.
Read our full Withings Body Scan 2 review
The best smart scales for fitness
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
The best smart scales for display quality
The Wyze BodyScan is proof that bathroom scales have come a long way from simply flashing up a number and calling it a day. It tracks 17 metrics, including body fat, muscle mass and body water, using eight electrodes and a handle that measures body composition across five zones. Its biggest selling point, though, is the generous 4.7-inch colour display, which shows seven measurements at a glance. No squinting at tiny numbers or immediately reaching for your phone to better see your stats in an app.
In testing, the Wyze delivered accurate readings for key measurements, including weight, BMI, body fat and muscle mass, with results that held up well against much pricier alternatives. Measurements were quick, and the scale syncs with Apple Health, Fitbit and Health Connect. Best of all, there's no subscription fee lurking around the corner to unlock your own data.
There are a few budget-friendly compromises. The handle feels a little flimsy, the app is fairly bare-bones, and some measurements, including body water and basal metabolic rate, were less convincing. It also runs on four AAA batteries rather than charging via USB-C, so keep a spare set handy.
Ultimately, the Wyze BodyScan makes a convincing case for spending less without settling for a tiny screen or limited measurements. If you want a clear view of your body composition stats without paying premium-scale prices, it's well worth a look.
Read our full Wyze BodyScan smart scale review
The best Garmin smart scales
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
Also tested
Not every smart scale we test makes the cut, here are some of the models we've tested elsewhere on TechRadar that didn't make the grade, along with links to our full reviews.
How to choose the best smart scales 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.