How to Enable / Disable Wave to Wake up on Galaxy S7 & S7 Edge
While Galaxy S7 and S7 Edge support the Always On Display, but they don't support the favorite Double Tap to Wake feature. As an alternative, you can ...
Continue
Double tap to wake Xperia Z3 means you just need to double tap the screen to turn it on. So, you don't need to press the power button with this easier way. To enable Double Tap to Wake Xperia Z3 and Xperia Z3 Compact do as follows:
1. Open Settings and go to the Display settings
2. Scroll down and make sure the "Tap to wake up" option is marked
3. From now on, you just need to double tap the screen to wake the device up