Xiaomi is testing new gesture controls for some of its smartphone models. The so-called “full display gestures” have been included in the latest beta build of MIUI 9, the company’s custom Android-based firmware.
Swiping up from the bottom of the display will get you to the home screen. Add a short pause to the same motion and you’ll activate the “Recents” screen. Lastly, swiping from the left or right of the screen to the middle will return you to a previous page.