- Go to Profile.
- Tap the gear icon, then Profile. To edit another user's height, scroll to the Family section and select the correct user.
- Scroll to Height, and enter the height. Be sure to use the correct Units (centimeters or feet and inches)
- Tap Save.
https://support.withings.com/hc/en-us/sections/6216033813649-Withings-App-Android
https://support.withings.com/hc/en-us/sections/200501778-Tutorials