Xiaomi
Double Tap to Wake or Sleep Screen auf Xiaomi
Double tap to wake lets you activate the display of your Xiaomi phone by tapping twice on the screen instead of reaching for the power button. It only wakes the display, it does not unlock the device, so you still need your PIN, pattern or fingerprint to get past the lock screen.
The setting sits inside the lock screen menu and controls a small touch-sensing layer that stays active while the display is off. That layer listens for two quick taps in the same spot and passes the wake signal to the system.
To turn it on or off, go to Tap on Settings ➔ Tap on Always-on display & Lock screen ➔ Enable or disable Double tap to wake or turn off screen. The same toggle also lets you double-tap on an empty area of the home screen or lock screen to put the display back to sleep.
Keep the feature off if your phone spends time in a bag or pocket, since accidental taps against fabric can wake the screen repeatedly and shorten battery life between charges. Turn it on if you frequently check the time or notifications and prefer not to press a physical button each time.