Withings WS-50 Smart Body Analyzer, Health Tracking Wireless Bathroom Scale

Product information

Withings WS-50 Smart Body Analyzer will help you better understand your body and your health. This versatile scale will help you track your weight, body composition, heart rate, and even the air quality in your room. It'll coach you and allow you to set goals split into achievable weekly targets, so you can work with it to improve your body and health.

Understand your body
Smart Body Analyzer puts your body data into perspective. It considers variations in the fat-lean ratio and Body Mass Index to reveal patterns and ensure you target the right pounds. You can view your progress and make informed decisions to help you get your body the way you want it. Furthermore, with MyFitnessPal compatibility, you can follow all your data on your smartphone, letting you manage your daily calorie intake to reach your goals.

Unmatched accuracy
Smart Body Analyzer has been tested to give you data you can trust. Withing's Position Control technology will ensure that you're positioned correctly, in order to present the most accurate results possible. You can also choose between several body composition models to optimise fat mass measurement, so you know that the data you're getting is accurate to you.

On the pulse
You can use Smart Body Analyzer to measure your heart rate, just by standing on it for a few seconds. Taking regular measurements of your resting pulse can help you assess your fitness level, with lowering it over time meaning that you're strengthening your heart, the basis for good health.

Coaching in the palm of your hand
Withing's free Health Mate app for iOS and Android will collate your data and present them in helpful, easy to understand graphs. The apps will also allow you to set goals and break them down into achievable weekly targets with relevant tips to help you along the way. Smart Body Analyzer also works with over 100 partner apps like RunKeeper, Endomondo and MyFitnessPal.

Breathe easy
Smart Body Analyzer also checks indoor air quality by measuring temperature and carbon dioxide. Your app will then build a CO2-level graph that will let you know the times when you need to clear the air. When used in your bedroom, this can help you get a higher quality night's sleep.

Versatile, easy, instant
Once you have the app, successful setup of the scale is just a few taps away. It can work over both Bluetooth and Wi-Fi, for long range pairing to your chosen device and results are sent automatically, appearing almost instantly after you step on.

Smart Body Analyzer can recognise up to 8 users, without the need for logging in, so the whole family can use it. You can also choose who see your data: share it on social networks, forward it to your doctor via email or keep it private- it's up to you who sees what.

In the Box:
1x Smart Body Analyzer
4x 1.5V Alkaline cells (AAA)
4x Carpet feet for high-accuracy on carpet or rug
1x Installation guide

Additional Measurements
Body fat, heart rate, air quality
Analyses BMI
Compatible with
iPhone (3GS or higher), iPad (all versions), iPad mini, iPod touch (3rd generation or higher), with iOS 5 and higher and Internet connectivity. Android 2.3.3 or higher smartphone or tablet with Bluetooth compatibility and Internet connectivity
H327 x W327 x D23 mm
Maximum User Weight
396lb (180kg)
Model name / number
Pacemaker Compatible Information Can be used by persons fitted with a pacemaker
Power Supply
4x AAA batteries (included)
Smartphone Connection
Stone to Kg switch Information Easily switches to measure in metric or Imperial
User Memory
8 user memory


  • Click & collect

    Click & collect from John Lewis and Waitrose shops tomorrow from 2pm
    Find out more
  • Collect+

    Collect + from a local shop from tomorrow, postcode exclusions apply
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  • UK delivery

    Standard delivery within 5 working days
    Next or named day delivery
    Named day UK delivery pre-10.30am
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  • International delivery not available


If you’ve changed your mind about keeping your purchase, please return it in its original condition with proof of purchase and we’ll exchange or refund it. Unless faulty, this should be within 35 days of receiving your order. By original condition, we’d expect this to mean that you’ve kept packaging and labels, and that the item is undamaged and unused.

You can return for free in the UK via John Lewis shops, Royal Mail, Collect+ or MyHermes. If you need to arrange collection of large or heavy items, call us on 03456 049 049. For international returns queries, call us on +44 1698 545 454

You’ll find returns information on your delivery note. Exceptions apply to certain products - find out more about our refund policy

Q & As

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