Does Redmi Watch 4 support Bluetooth to unlock the phone?

The watch supports the function of unlocking cell phones, and this function currently supports Xiaomi phones with system version MIUI 12 and above.
In the state of Bluetooth connection between the phone and the watch, watch unlocking is a one-to-one binding between the watch and the phone, and the watch serves as an identity ID within a safe distance, which can be used as an alternative to inputting the unlocking password or pattern, which ensures security and greatly improves the convenience of operation.
Setting method:
1. Go to the [Mi Fitness] App >> [Device] >> unlock the phone >> set the device unlock;
2. After the lock screen password is set, confirm the unlocking on the watch side to bind successfully, and you can choose the unlocking distance (close, moderate, slightly far away).
Unbinding: You need to turn off the Bluetooth device unlocking function in the system settings of your cell phone to Xiaomi phone.