- Press the button at the back of your scale.
- Press the unit button again to change the unit.
- Check the screen of your scale to see the unit change.
The unit is confirmed a few seconds after you stop pressing the button.
https://support.withings.com/hc/zh-cn/sections/6212630854033-Body
https://support.withings.com/hc/zh-cn/sections/115001370527-Tutorials
