The Xiaomi 15 supports wake up the screen by tapping twice. Double tap to wake up the screen improves convenience by allowing screen activation without pressing buttons, reduces button wear, and provides quick access to notifications and time while the phone is locked.
To enable waking up your phone by tapping the screen twice, please refer to the following steps:
1. Go to [Settings];
2. Tap [Lock screen];
3. Enable [Double tap to wake or turn off screen when device is locked] to activate this feature.
After the settings are completed, you can turn off the screen and then double-tap the screen to check if the phone wakes up.
Does it help?