What capability does the iOS feature 'Back Tap' provide?

The feature 'Back Tap' in iOS allows users to trigger specific actions by tapping the back of their iPhone. This capability makes use of the phone's sensors to detect when the back is tapped, and it can be customized to perform various functions, such as launching an app, turning on accessibility features, or taking a screenshot. This adds a layer of convenience and personalization, enabling users to streamline their interactions with their device.

The other options do not accurately describe the functionality of 'Back Tap.' Voice commands for app control represent a different set of features that are not related to physical tapping. Enhancing Bluetooth connectivity and activating the camera automatically are also distinct functionalities that do not relate to the 'Back Tap' feature. Overall, the customizability aspect of 'Back Tap' is what differentiates it as a unique and effective feature for user interaction with iOS devices.