Swapping an ordinary weighing scale for a smart scale can open up a world of new information about your fitness levels and body composition. It’ll also let you take the emphasis off weight and consider other metrics. Been lifting weights? You could see a muscle mass increase. Been running? You could see your cardiovascular health improve.
The key benefit of smart scales over traditional scales is the breadth and quality of the data you’ll get. You’ll be able to monitor changes to your weight and body composition and track your progress on your smartphone app.
Some scales will even help you to track inches lost or gained. Seeing your progress in digits and graphs helps you to see the results of your healthy choices from weigh-in to weigh-in.
Why you should trust us
Tech Advisor has been reviewing smart scales since 2019 and in that time, we’ve tested most of the best scales that have come on the market – from major and independent brands. It puts us in a strong position to be able to compare models and recommend those that are the best value and best performing. We don’t rely on manufacturers’ specs. Instead, we take the smart scale home and use it for several weeks.
But which smart scale should you buy? If you don’t know where to start, have a look at our guide below the round-up to find out how to use one and what they measure. If budget is no concern and you want to buy one of the new Withings scales, check out our dedicated article on which Withings scale to buy. It explains what each one does and how they compare.
And if you want to get a compatible fitness tracker, check out our recommendations for the best fitness trackers available. Otherwise, read on to find out which smart scale is best for you.
1. Withings Body Comp – Best overall

Pros
- Large scale & easy-to-read display
- Full range of metrics on scale
- Heart and nerve health data
- Lots of in-app info to help you interpret results
Cons
- Expensive
The Body Comp is from Withings’ latest line of smart scales. It’s the mid-range option that sits over the Body Smart and below the Body Scan.
As well as weight and the full range of fitness metrics you’d expect (fat, muscle and bone mass %, lean mass, water mass, visceral fat index, BMI), you’ll get a range of heart health metrics. It’ll measure your standing heart rate, determine your vascular age and measure your pulse wave velocity – arterial stiffness is a good measure of heart health.
It will also give you a nerve health reading. For many people, that won’t be particularly meaningful but for diabetics and people with certain autoimmune conditions who are susceptible to nerve health problems, it’s a good thing to keep an eye on.
The scale itself is larger than some rivals and has an easy to read, full colour screen that displays a range of metrics. You can even tailor which metrics appear or opt for the ‘Eyes Closed’ mode, which will log your weight without you having to see it.
It’s battery-powered. USB charging would have been nice but you should get 15 months from the batteries if you do a daily weigh-in.
The app is nicely laid out and easy to read, and all measurements are supported by explanatory articles to help you make sense of the numbers that pop up.
If anything, Withings errs on the side of too many measurements but if you can afford it, that’s a nice-to-have problem. Altogether, the Body Comp offers a high-quality experience across scale and app. Our only problem when testing it came when weigh-in information was sent to the wrong account – but this is common to Wi-Fi scales when users have similar weights.
Not concerned with price? Check out our review of Withings’ top of the line Body Scan for the ultimate smart scale currently available.
2. Etekcity HR smart fitness scale – Best mid-range scale

Pros
- USB charging
- 14 measurements
- Customisable display
- Informative app
Cons
- Still a little pricey
This mid-priced scale does everything you could want. It delivers 14 measurements: weight, BMI, BMR, metabolic age, subcutaneous fat, visceral fat, body fat, bone mass, body water, skeletal mass, protein, muscle mass, fat-free body mass – and heart rate, which is offered by relatively few competitors.
What’s more, the data is well laid out in the app, with explanatory text for each measurement.
The scale itself is has all the features of a high-end model, with USB charging and a colour screen you can optimise to show the measurements you want.
It connects via Bluetooth and Wi-Fi and there’s no limit to the number of users it can support. You can switch off the current to use it during pregnancy and to weigh children and pets. The VeSync app will also send data to other fitness apps, including Apple Health, Fitbit, MyFitnessPal, Google Fit and Samsung Health.
All in all, this is one of the best scales you can get at this price point. The only catch is, at this stage, you can only buy it in the US. It’s not yet available in the UK.
3. Smart Scale P2 Pro – With 3D modelling

Pros
- Heart rate monitor
- 3D modelling
- Fitbit & Apple Health compatible
- Feature-packed app
Cons
- Battery powered – no USB charging option
The P2 Pro is a mid-range option from Eufy, but it packs in a lot for its price.
The scale itself is sleek and attractive and can sync to the app using either Bluetooth or Wi-Fi. It’s quick to set up and easy to use.
It measures 16 metrics, although only weight, body fat percentage and heart rate will be shown on the scale’s white LED display.
The rest of the measurements are only available via the app. Other in-app features include daily calorie logging and a useful database of common food items.
The scale comes with a tape measure. That seems a bit basic but input your key measurements and the app will display a 3D model of your body.
User numbers are unlimited and you can even set up accounts to weigh babies and pets. The only trouble with multiple users is that similar weights can be sent to the wrong account, which can be frustrating. Still, this is a common issue with Wi-Fi scales.
We’d prefer USB charging option but this is something that even pricier scales can lack.
4. Renpho Elis 1 Smart Body Scale – Best budget buy

Pros
- 13 measurements
- Unlimited users
- Easy to connect
Cons
- Bluetooth connection only, no Wi-Fi
- No frills either
Renpho’s basic smart scale is good value. It’s an attractive scale that comes in black or white and connects to your phone via Bluetooth. It’s a solid all-rounder that’s compatible with Apple Health, Fitbit, Samsung Health and Google Fit.
There’s a clear digital display at the top but bear in mind that the only measurement you’ll get on the scale is your weight – you’ll need to open the app to see the other 12 metrics, which are laid out in an easy to read format.
We tested the battery-powered model, but there’s also a USB-charging version (£28.10 in the UK; $29.99 in the US), which may be more handy.
5. Withings Body Scan – Best luxury buy

Pros
- Impressive segmental body composition information
- Scans body, heart health, and nerves
- Easy-to-use app
Cons
- Very expensive
- Overkill for most people
The Body Scan is now Withings’ flagship smart scale. It’s twice the price of the brand’s next best model but it significantly improves on both the quality and quantity of the body composition data it delivers.
In terms of hardware upgrades, Withings adds a handle to its characteristic smart scale design, which has a further four stainless steel electrodes embedded. This allows it to much more accurately assess the makeup of the user’s body, allowing for segmental body composition analysis. Users will get more detailed information about the muscle and fat makeup of their arms, legs and torso and how they compare to other Withings’ users. However, you can’t track changes to these measurements in the app, which feels like a strange oversight.
It will also provide a wealth of heart health information, giving an ECG reading, showing pulse wave velocity (PWV) and estimating the user’s vascular age.
It will even give you a nerve health reading. If you don’t know what that means, you’re not alone. The PWV and nerve health measurements are a sign that the Body Scan delivers much more information than most people will need – or even know what to do with. This smart scale is undoubtedly the best around but it’s a question of whether it’s worth it to you to spend so much more to access this information.
6. Mi Body Composition 2 scale – Best for Xiaomi users

Pros
- Minimalist design
- Good app
- 13 metrics
- 16 profiles supported
Cons
- Battery powered
- Bluetooth only
- Only weight shown on scale
If you have a Xiaomi Mi Band or Mi watch, buying the Mi Body Composition Scale 2 is a no-brainer. Instantly being able to access all of your measurement stats next to your exercise tracking is a huge plus that’ll make a fitness journey much easier to plan and monitor.
For non-Xiaomi users, this smart scale is still one to consider. It’s one of the most affordable around and its minimalist design means it should look good in any bathroom.
The app is simple to use and charts and numbers are easy to read and understand. It’ll provide you with 13 body composition measurements (although sadly only your weight appears on the scale). And the scale can take up to 16 separate profiles.
On the minus side, unlike the Renpho scale above, there’s no USB charging option. It’s powered by 4 AAA batteries – which aren’t even included, so prepare to shell out for a pack of those as well.
7. Withings Body Smart – Most affordable Withings scale

Pros
- Large, colour display
- Key metrics shown on scale
- Data-rich app
Cons
- Visible metrics in app you can’t access with this scale
- Potential issues distinguishing between users
This is a great smart scale – don’t get us wrong. The hardware and app are both high quality. The scale is large, with a full colour display. It shows all the key metrics when you climb on, so you don’t need to open the app.
There’s even the ‘eyes closed’ mode, which will allow you to track your progress without any measurements appearing on the scale itself. The app is data-rich, with plenty of explanatory information on metrics that might otherwise be nothing more than a dot on a trend line.
It measures all the key metrics, including fat, muscle and bone mass, gives you a visceral fat score and measures your standing heart rate.
The problem is that it doesn’t offer much more than a budget scale and is considerably pricier than one. If you’re a Withings fitness tracker user and you don’t want to spend more to get the Body Comp, buying this scale is a no-brainer. But if you’re a Fitbit user, for example, it may be a harder sell.
8. Anyloop Smart Scale Pro – Feature-packed for its price

Pros
- USB charging
- Full colour screen
- Supports multiple users
Cons
- No Wi-Fi connection
- No manual
- Some oddities with features
This scale is not widely available in the UK – and where it is, it’s currently overpriced, so avoid. But in the US, it’s a great deal.
There’s a lot to like about the Anyloop Smart Scale Pro. It charges via USB and a single charge should last you for around a year. It features a large, full-colour screen that not only displays weight but heart rate, body fat %, BMI, muscle mass, body water %, ideal and goal weight. It provides 24 measurements and body composition evaluations in all. There are weighing only modes for pregnancy, pets and kids. It supports multiple users and although it only connects via Bluetooth – Wi-Fi is not an option, it’s easy to get weigh-in data sent to the correct account.
The associated Unique Health app is clearly laid out – but it’s not flawless. The advice and explanatory text that accompany measurements could be more more accurately written and helpful, and some of the body composition evaluations may line up precisely with health advice given in the US and the uk.
There were also a couple of features we couldn’t get to work. Overall, however, the Smart scale Pro offers a lot for its price point.
9. Noerden Minimi Smart Body Scale – Google Fit compatible

Pros
- Unlimited users
- Google Fit compatible
- Nine measurements, plus weight
Cons
- Only weight is displayed on the scale
- No USB charging options
- No Wi-Fi connection
This French-made smart scale has a minimalist design and a bright, easy to read white LED display. It comes in either black or white (although you can also buy it in pale pink or blue in some countries). It’s powered by three AA batteries which are included, but there’s no USB charging option. And it connects via Bluetooth – there’s no Wi-Fi.
The scale itself will only display your weight but in the app, you’ll get another nine measurements, including BMI, body fat, lean body mass, visceral fat, basal metabolic rate (BMR), bone mass and metabolic age. The information is well laid out but navigating the app can be confusing – especially at the start.
There’s no limit to the number of users who can create profiles and use it, and you can sync your data with Google Fit.
FAQ
Are smart scales worth it?
If you want to find out more about your body composition, track a fitness journey or measure something other than weight, then yes, a smart scale is well worth it.
Smart scales measure much more than just weight. A decent set should also provide body mass index (BMI), lean mass and body fat percentage and much more: the scales we’ve tested will give as many as 17 different body composition metrics.
Bear in mind that only the more expensive scales will display many metrics on the hardware, while budget scales tend to only display your weight on the scale itself – or sometimes, nothing at all. You’ll have to dive into the app for all but the main measurements.
Are smart scales accurate?
The answer here is that they’re accurate enough to be useful to everyone except for serious athletes. If you’re buying a smart scale because you want to improve your fitness, then what’s important is not just the accuracy of one weigh-in but the general trend as you get more exercise and eat better. It’s important not get too hung up on one figure. It’s about the direction you’re going – and a smart scale will give you much more useful information than a regular scale.
When you’re monitoring health data, remember that the benchmarks given are just averages. An individual’s ideal measurements may differ from these, depending on various factors, and still be healthy. If you’re worried about any of your stats, speak to your doctor.
What does a smart scale measure?
The figures given below are just a guide and may vary from country to country.
BMI: Although BMI has come under fire from some people, it’s a weight indicator that works for most people, most of the time. If you are unhappy using BMI as a metric (for example, if you lift weights and have high muscle mass), look for a scale that shows your body fat percentage instead.
If you’re in the UK, the NHS suggest thats an ideal BMI for adults is between 18.5 and 24.9. Bear in mind that in other parts of the world, these figures may be different and depending on where the scale is designed, it may not match up with the range you’re used to.
Body fat percentage: This is the portion of your body made up of fat cells. This is only a rough guide but for men aged 20 to 40, 10-20% body fat is considered healthy. For older men, 18-25% is good. For women aged 20 to 40, 19-26% body fat is healthy. For older women, 23-35% is healthy. Again, these are UK-based measurements and again, they’re just a rough guide.
Lean mass: This is a measure of muscle, organs, bones and water, rather than essential or storage fat. Having a high percentage of lean mass boosts your metabolism, making it easier to maintain an overall healthy weight.
Visceral fat: This is fat that exists around your vital organs, and is considered a risk factor in long-term health problems. The scale may also measure subcutaneous fat, which is the more visible fat on your body, and which is less of a concern.
Body water percentage: This is the volume of water in body composition. It’s somewhat age dependent but but men should try to get to a total body water percentage between 50 and 65 percent. The ideal range for women is between 45 and 60 percent.
Bone mass: Bone density is an important health metric because, like muscle, bone is a living material that can become stronger with exercise, as well as a healthy diet (including calcium and vitamin D). For most people, bone mass starts to reduce after the age of 40, and regular exercise can prevent this loss.
Basal metabolic rate (BMR): This estimates the energy (measured in calories) expended by the body at rest to maintain normal body functions (heart beat, respiration, maintenance of body temperature, etc). It’ll give you an idea of how many calories you can consume in a day to maintain the same weight.
Resting heart rate: Few smart scales measure this but scales from Withings, as well as the Eufy P2 Pro do. You can’t usually track it via a graph in the app, but it will give you a measurement each time you stand on the scale.
Pulse wave velocity (PWV): This is currently exclusive to some Withings scales. It’s a measure of arterial stiffness and blood flow rate that is used clinically as a key indicator of heart health and blood pressure problems. Some Withings scales will show you a vascular age, which uses the same data to provide the result. The top-flight Withings Body Scan is additionally fitted with a retractable handle which can give you an ECG, for in-depth heart rate monitoring.
How do you use a smart scale?
Your weight and body fat percentage (and therefore other metrics) will change throughout the day so it makes sense to weigh yourself at the same time each day. For most people, the best time is at the start of the day, before eating.
Where you place your scales is important, as you’ll get different readings (sometimes out by a few kg or pounds) depending on where it is on the floor. Put it on a flat, hard surface if possible (bathroom tiles work well). In most cases, you shouldn’t place it on carpet, as this will trick the scales into understating your weight.
Some scales, such as the Body Comp, come with attachable, wide feet so the scale can be used on carpet. A few others will work well on carpet without needing adaptation. Just make sure to compare the first few results with a hard floor to check that they’re consistent.
You’ll need to take off your shoes and socks and stand on the scale with bare, dry feet. The scale will send a mild electrical current up through your body and measure its resistance. The current isn’t painful – in fact, you won’t be able to feel it at all. The scale will use the height you input into your profile and the amount of resistance it detects to determine your body composition.