The iPhone's side button is designed to lock your device by default, and it also doubles as a convenient way to hang up your phone calls. But because of its very accessible position, it's common ...

On newer models, the on/off button can be programmed (see Android Side button and iPhone Action Button). THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction requires permission.

If that happens, you’ll find three different Action Buttons on the left side of an iPhone in the future. For the uninitiated, the customizable Action Button offers quick access to the most-used ...