Most iPhone 15 Pro and newer owners have never touched the Action Button settings — it ships set to Silent Mode and stays there. Laura Thomas breaks down every option worth considering, from Camera to Voice Memo to Flashlight, plus the two iOS 26 additions most people don't know exist: a Quick Reminder trigger that captures a task in under five seconds, and Visual Intelligence, which turns your camera into an instant information scanner. By the end you'll know exactly which setup matches how you use your phone.

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