Best smart scale for 2021: Withings, Fitbit, Garmin and Eufy, compared

Best smart scale for 2021: Withings, Fitbit, Garmin and Eufy, compared

Today’s bathroom scales do a lot more than measure your weight. Many have sensors that can estimate your muscle and body fat, measure your heart rate, and even calculate your basal metabolic rate, all to monitor your health or your Are trying to help. reduce weight.

These so-called smart scales use Bluetooth or Wi-Fi to sync all the metrics you’ve recorded to an app on your phone. Usually it is the app of the company that makes the scale. In most cases, you can also sync that data to Google Fit or Apple Health.

Make it easy for you Choose the best smart scale, Let’s walk through the pros and cons of the top smart models on the market by Withings, Fitbit, Garmin and others.

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What makes Eufy Smart Scale so great is not just the scale – it’s the app that comes with it. The app, available for iOS and Android, is very easy to navigate and provides detailed data and reports of your weight, body fat, water, muscle, bone mass, BMI, BMR and more. The app will also flag those measurements as low, normal, or high, so you know what your health stats compare to your height and age as a standard in health and fitness.

The Ufi scale in the app supports 16 different users. Just select the right user in the Ufi app and from smart scale all your data and metrics will be synced to that profile in the mobile app. It also connects to the Apple Health app and the Fitbit app.

James Martin / CNET

Withthings’ digital bathroom scale is full of many features that are above and beyond the rest. It provides detailed historical data and metrics on your weight, BMI, body fat, muscle, body water, heart rate, and bone mass, so you can see how those measurements and your health and fitness week, Changes occur over months, quarters and years. This Withings scale records the weather every day that you see on the scale, helping you decide what to wear if you step on a smart scale first thing in the morning.

What sets Body Cardio apart is that it has modes for pregnant women, infants and athletes, each tailored to specific needs. If you want a smart scale to track your pregnancy, it will plot your weight change during your pregnancy and suggest turning off body structure features that are not accurate during your carry.

Baby mode only allows you to hold your baby and step on a smart scale to measure your weight. In athlete mode professional athletes, bodybuilders and anyone who is overweight eat because they have too much muscle and low body fat and BMI.

Two more bonuses: This bathroom scale uses a rechargeable battery (with a battery life of around 18 months) – multiple scales run on a bunch of AA batteries or AAA batteries – and it supports eight different users. Does.

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Do you already use a Garmin fitness tracker? You can then get the Garmin Index S2 to go with it. This scale is an update to the index scale I originally tested in 2019. Index S2 includes a new weight-tracking feature on the screen that monitors weight changes during the last 30 days of reading.

The Garmin Connect app (Android and iOS) provides a holistic view of your health, including data and metrics such as your activity level, weight, BMI, body fat percentage and other measurements and data.

The Smart Scale measures weight, BMI, body fat, body water, muscle, and bone mass, and it provides accurate charts to track weight loss and other data over a week, a month, and a year. It uses four AA batteries, and battery life is up to nine months. Read more.


The Fitbit Aria Air is the latest smart scale from Fitbit and measures weight, BMI and body fat. This digital bathroom scale is best for those who currently use Fitbit wearables and want all their data – activity, nutrition, weight, BMI, body fat, sleep – in a dashboard.

Aria Air is an update to the Aria 2 that I tested last year. The Fitbit scale features sleeker styling and a new screen. Like Air 2, you can have multiple profiles for different family members, and each of their metrics and data is saved to their user profiles in the Fitbit app (Android and iOS).

Defects in measuring body fat with a scale

These smart scales all go beyond a typical digital scale offering. Each of them can measure your body composition, weight, and BMI using an electric current that travels through your foot from the sensor of the scale across your pelvis and down to the other leg. It measures how much resistance the current produces and then uses a mathematical formula to estimate how much fat, muscle, and bone make up your entire weight.

Although these features are useful, they are not reliable for the sensing of fat versus lean mass. Consumer Reports tested the accuracy of several scales measuring BMI and body fat percentage and found that it did not hit the mark the most compared to Bodypod – one of the gold standard clinical trials for body fat measurement One.

Inaccuracy of data can be chalked up to many things when it comes to fat percentage, maintaining water weight if you are ill, have recently exercised, have menstruation or consumed alcohol . One of the most influential factors is where you lift your weight – if your chest and arms are thin, but you have more fat and muscle in your pelvis and legs, it can misalign your overall body fat percentage. .

On each smart scale I gave a different body fat percentage, but each number was within the 10% range. But for muscle mass measurement, the range was between 33% and 63%. The two scales I tested provided a basal metabolic rate, but there was a 631-calorie difference between the two. This is more than a McDonald’s Big Mac or three shining Crispy Chem donuts.

It is also worth noting that BMI is not considered an accurate measurement of one’s body fat or overall fitness, so correct BMI information should be taken with a single grain of salt.

All this is to say, don’t get stuck in those matrices. Follow the instructions that come with your smart scale to get the most accurate measurements and data, and if you are concerned about your body fat percentage, body composition, health, or fitness, ask your doctor as appropriate. Talk about scanning. All models in this Best Smart Scale list give accurate readings when it comes to body weight – this is the most important factor when you focus on weight loss. We will update this list from time to time.

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The information contained in this article is for educational and informational purposes only and is not intended as health or medical advice. Always consult a physician or other qualified health provider regarding any questions you may have about health or health purposes.

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