Does the REDMI Watch 4 support unlocking the phone through Bluetooth?

Yes, this feature currently supports Xiaomi phones running MIUI 12 and above versions. When the phone and watch connect via Bluetooth, the watch is bound directly to the phone, allowing it to unlock the phone within a certain range. This setup provides a secure and convenient way to unlock your phone without entering a password or pattern.
To enable the unlock feature, follow these steps:
  1. Open the [Mi Fitness] App and go to [Device] > [Security] > [Unlock phone] > Set screen unlock.
  2. After setting a screen lock password, the watch will display [Allow the watch to unlock your phone]. Tap the checkbox to complete the pairing.
In the Mi Fitness App, tap [Range] to choose the unlock distance (Very close, Close, or Less close).
To disable this feature—for example, on a Xiaomi phone, please refer to the following steps:
Navigate to [Settings] >> [Fingerprints, face data, and screen lock], then tap [Unlock with Bluetooth device] and turn it off.

Does it help?

Yes
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