The feature is called Back Tap and, like the Action Button on newer iPhones, it gives you one more way to use your device ...
Morning Overview on MSN
Your iPhone hides a virtual home button you never knew you had
Apple removed the physical Home button from its flagship iPhones years ago, but the core idea never really went away. Buried inside the Accessibility settings is a floating control that can behave ...
This iPhone button gives you instant access to Siri, screenshots, Control Center, and more.
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