At Amazon over 1,700 customers rate this smart scale 4/5 stars.
The Withings WS-50 Smart Body Analyzer features weight and body fat measurement with position control, in addition the scale can track the air quality within your home. With auto-user recognition, there is no need to press additional buttons or provide information, by simply stepping on the scale your vitals are recorded. Your weight loss and heart rate data is automatically tracked over WiFi or Bluetooth to your smartphone device using the companion iOS or Android application. Additionally, the WS-50 tracks your data via HealthKit on iOS devices as well.
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