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Measures heart rate (not tested). WiFi connection optional. Measures air quality (CO2 level). Supports 8 users. Display is lit. Has an app for data. Can optionally connect using BlueTooth. Optionally shares data with other apps. Can set a goal weight. 0.2 pound resolution. Turns on automatically when stepped upon. Automatically recognizes user.

About

The Withings WS-50 is part of the Scale test program at Consumer Reports. In our lab tests, Scale models like the WS-50 are rated on multiple criteria, such as those listed below.

Weight accuracy: How accurately the scale measures body weight.

Weight repeatability: How repeatably the scale reports the user's weight.

Body-fat accuracy: How accurately the scale measures body-fat percentage.

Features

Calculates BMI Calculates BMI Calculates Body Mass Index (BMI) based on the user's entered profile.
No
Water % Water % Reports body-water percentage.
No
Muscle % Muscle % Reports body muscle-mass percentage.
No
Bone % Bone % Reports body bone-mass percentage.
No
Users Users The number of users the manufacturer claims the scale can be used by.
8
WiFi WiFi Uses WiFi to connect to the internet to communicate readings.
Yes
Bluetooth Bluetooth Uses Bluetooth to connect to a smart device to communicate readings.
Yes
Auto recognition of user Auto recognition of user Units recognize the user based on weight.
Yes