The feature is called Back Tap and, like the Action Button on newer iPhones, it gives you one more way to use your device ...

This iPhone button gives you instant access to Siri, screenshots, Control Center, and more.

Camera Coach on Pixel 10 devices makes you a better photographer.

The iPhone 15 series might get capacitive buttons instead of physical ones, which could open the door to even more button customization. But we don't have to wait for the iPhone 15 to take advantage ...