Your Apple iPhone's side button is helpful for several reasons, but it can also be a pain when it accidentally ends your calls. Here's how to avoid that.

Likewise, you can press and hold on a Control Center icon while in edit mode to move it. Once it is where you want it, let go, and then press the side button again to exit.

Samsung is adding Gemini side-button activation to several Galaxy A-series phones starting in early May. A-series models won’t get the feature until they receive the One UI 7 update.

The camera control button sits flush with the side of the iPhone 16. Screenshot by CNET A light press on the button can also bring up an overlay for camera functions.