The iPhone 13 Pro Max battery lasts a very, very long time. Screen-on time can clear 10 hours.
All recent iPhones — dating back to iPhone 8 — can take advantage of the Back Tap feature. | Photo by Amelia Holowaty Krales / The Verge

Back Tap is one of the easiest ways to put an iPhone function you use all the time literally at your fingertips. It is exactly what it sounds like: a way to access different phone features by tapping the back of your phone — kind of like an extra, user-customizable button. It was introduced with iOS 14, and the feature works on devices as old as the iPhone 8, which was launched five years ago — so it’s highly likely that you’ve got a compatible phone.

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