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8 best bathroom scales for a smarter way to track weight and fitness

Weigh to go, these are our favourite bathroom scales for tracking all your body metrics

Alex Lee
Thursday 16 May 2024 13:33 BST
The latest smart models can measure body fat, muscle mass, water percentage, bone mass and more
The latest smart models can measure body fat, muscle mass, water percentage, bone mass and more (The Independent)
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Ah, the humble bathroom scale – an enemy to many. No one really enjoys stepping on the scale, waiting for the numbers to flash up but for those looking to gain, lose or maintain their weight, bathroom scales are a necessary evil, and now they’re smarter than ever. 

The best bathroom scales don’t just measure your body weight, they also detect a range of metrics, from your BMI, body fat percentage and muscle mass to your nerve health and heart rate. The good news is, these days, entry-level smart bathroom scales cost roughly the same as traditional analogue or digital scales.

Smart scales use something called bioelectrical impedance analysis (BIA) to send a safe (and pain-free) electrical current from your bare feet through your body, encountering different levels of resistance when it travels through your muscle, fat and bone. This electrical current provides you with a huge amount of valuable data about your body. Although, manufacturers advise that people who are pregnant or have a pacemaker shouldn’t use these types of scales.

Although scales that use BIA won’t give you precise measurements, they will still give you a good trend-line indication of whether your body fat and muscle mass is going up or down. “Should I expect BIA to give me an accurate value on day one? No,” says Jonathan Wells, professor of anthropology and paediatric nutrition at University College London. “But would I expect it to give me a good indication of whether I am gaining or losing muscle and fat? Yes,” he adds.

We’ve been testing a bunch of smart (and digital) scales over the past year, and have rounded up our favourites below.

How we tested the best bathroom scales

We’ve tried and tested a range of the best bathroom scales
We’ve tried and tested a range of the best bathroom scales (Alex Lee/The Independent)

We’ve been testing bathroom scales for several months, looking at how they track data, what smart features they have, how they look in our bathroom and how easy they are to use.

We’ve considered their design, cost and usability. Can you add profiles to each scale? Can you weigh objects and pets? Is the app informative and easy to navigate? Keep reading to find out which ones are worth their weight in gold.

The best bathroom scales for 2024 are:

  • Best bathroom scale overall – Eufy smart scale P2 pro bathroom scale: £54.99, Amazon.co.uk
  • Best budget bathroom scale – Etekcity smart bathroom scale: £25.99, Amazon.co.uk
  • Best bathroom scale for in-depth analysis – Withings body comp smart bathroom scale: £189.95, Amazon.co.uk
  • Best bathroom scale for weighing luggage – Xiaomi mi body composition scale 2: £30.80, Amazon.co.uk

Eufy smart scale P2 pro

best bathroom scales
  • Best: Bathroom scale overall
  • Measures: Weight, body fat percentage, BMI, muscle mass, fat mass, water mass, bone mass, protein, BMR, visceral fat, subcutaneous fat, body age, skeletal muscle, lean body mass, body type
  • Power source: 4 AAA batteries (included)
  • Additional features: Connects to Eufy Life app via Bluetooth and wifi for setting goals and tracking progress
  • Number of profiles: Unlimited
  • Colours: Black
  • Why we love it
    • Heaps of data
  • Take note
    • Quite a narrow surface
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Etekcity smart bathroom scale

etecity bathroom scale .png
  • Best: Budget smart bathroom scale
  • Measures: Weight, BMI, body fat, protein, muscle mass, fat-free body weight, visceral fat, skeletal muscle, bone mass, BMR, metabolic age, subcutaneous fat, water
  • Power source: 3 AAA batteries (included)
  • Additional features: Connects to the VeSync app via Bluetooth for tracking measurements and setting goals; weighs pets, babies and packages
  • Number of profiles: Unlimited
  • Colours: Black
  • Why we love it
    • Good value
    • Tracks a huge number of body composition metrics
    • Weighs babies, pets and parcels, too
  • Take note
    • Inconsistent metrics on occasion
    • Only works with Bluetooth
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Withings body comp smart scale

withings smart scale.jpg
  • Best: Bathroom scale for in-depth analysis
  • Measures: Weight, fat mass, muscle mass, visceral fat, heart rate, pulse wave velocity, vascular age, nerve health, BMI, water percentage, bone mass, steps (with Withings fitness tracker)
  • Power source: 4 AAA batteries
  • Additional features: Health Mate app to set goals, track progress and offer health insights
  • Number of profiles: Up to 8
  • Colours: White, black
  • Why we love it
    • Packed with sensors and data points
    • Excellent, detailed app
  • Take note
    • Expensive
    • Unneccessary subscription
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Xiaomi mi body composition scale 2

xiaomi mi 2.jpg
  • Best: Bathroom scale for weighing luggage
  • Measures: Weight, fat mass, muscle mass, visceral fat, body age, BMI, water percentage, bone mass, protein
  • Power source: 4 AAA batteries
  • Additional features: Works with zLife app over Bluetooth for long-term tracking
  • Number of profiles: 16
  • Colours: White
  • Why we love it
    • Measures objects up to 10kg in weight
    • Slick design
  • Take note
    • Not the most accurate composition measurements
    • No batteries included
    • Cluttered app
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Garmin index S2 smart bathroom scale

garmin index s2.jpg
  • Best: Bathroom scale for Garmin users
  • Measures: Weight, body fat percentage, BMI, muscle mass, fat mass, water mass, bone mass
  • Power source: 4 AAA batteries
  • Additional features: Connects to the Garmin Connect app via Bluetooth and wifi for tracking progress
  • Number of profiles: Up to 16
  • Colours: White, black
  • Why we love it
    • Bluetooth and wifi connectivity
  • Take note
    • Pricey
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Brabantia renew battery-free bathroom scale

brabantia.jpg
  • Best: Battery-free bathroom scale
  • Measures: Weight
  • Power source: Push to power button
  • Additional features: Can display weight in kilograms, stones and pounds
  • Number of profiles: N/A
  • Colours: Grey
  • Why we love it
    • No batteries needed
    • Simple to use
  • Take note
    • Only measures body weight
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Fitbit aria air

fitbit aria air.jpg
  • Best: Bathroom scale for Fitbit users
  • Measures: Body weight, BMI
  • Power source: Included battery
  • Additional features: Connects to the Fitbit app via Bluetooth to see weight trends
  • Colours: White, black
  • Why we love it
    • A doddle to set up
    • Easy to understand your trend-line in the app
  • Take note
    • Very basic
    • Pricey for what it is
    • Only works with Bluetooth
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Weight Watchers ultra slim glass body analyser scale

WW ultra slim glass body analyser scale indybest.jpg
  • Best: Slimline bathroom scale
  • Measures: Weight, body weight, BMI, body water, bone mass and body fat
  • Power source: 3V-CR2032 battery
  • Additional features: Memorises four different users' measurements
  • Number of profiles: Up to four
  • Colours: Silver
  • Why we love it
    • Slim design
    • There’s no app, so it’s super simple to use
    • Cheap
  • Take note
    • The lack of an app means it’s hard to keep track of your stats
    • Few profiles
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Bathroom scales FAQs

How do smart scales work?

Smart scales help to give you a clear picture of your health and fitness by offering additional metrics besides weight, including body mass index (BMI), body fat percentage, muscle mass and more. They do this by sending a small, non-harmful electrical impulse through your body to measure the resistance, or impedance, your body gives against the current in bone, fat and muscle. They must be used barefoot and it is important to note that they should not be used by anyone who is pregnant or anyone who uses a pacemaker.

Are smart scales more accurate than mechanical scales?

While mechanical and digital scales can give you a basic reading of your weight, smart scales can provide you with even more information about your body, allowing you to log your weight and track changes remotely on your smartphone. They are the most accurate of all the options and also offer the most comprehensive view of the composition of your body.

What other features should I look for in a smart bathroom scale?

As well as tracking your weight, smart scales can calculate everything from body fat and muscle mass to BMI, water percentage and even your resting metabolism. These measurements can help give a better overview of your general health and knowing how much fat, water, muscle and bone your body is made up of can give insight into whether you are achieving your health goals. However, it's important to remember that these values are estimates and that you should always consult a doctor for the most accurate measurements and advice.

Some smart bathroom scales also give users the option to measure objects and babies, and the best ones have simple-to-use apps with goal-setting features to keep you on track.

The verdict: Bathroom scales

The Eufy smart scale P2 pro is our favourite smart scale of the lot. It’s cheap, syncs with Bluetooth and wifi, provides thorough body composition measurements and looked the sleekest of the bunch. If you want a detailed look at your body’s metrics, we can’t fault the Withings body comp smart scale, which is so comprehensive, featuring a pulse wave velocity sensor. If you don’t mind the hefty price tag, the Withings machine is the one to get.

For more bathroom gadgetry, take a look at our guide to the best electric toothbrushes

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