Adjust & Install/Uninstall the Strap Xiaomi Mi Watch Lite
Adjust the position of the buckle according to the circumference of your wrist. To install or uninstall the strap, refer to the figures below. You can pull the strap to see if it is installed securely.
Uninstall the strap: Press down the release button with one hand, and simultaneously pull out the strap with the other hand.
Install the strap: Align the slot of the strap with the watch and then insert it to the watch until you hear a click.
Read more: https://manuals.plus/_mi/watch-lite-manual#ixzz7h06M6KEI