In the Settings app, go to Accessibility > Touch > Back Tap and choose one of two options: double tap or triple tap. You ...

From essential first steps to pro-level tweaks, these are the things I do first every time I set up a new iPhone.

Go back to Location Services, tap Bluetoothscanning, and switch that off as well. For most everyday use, they don't offer any real benefit. Turning them off allows your phone to enter deep sleep mode ...