iPhone 15 Pro Action Button
Steve Moser from MacRumors:
The Action button, which could be similar to the Apple Watch Ultra's Action button but with more phone-focused options, is expected to be a new physical button on the next-generation Pro iPhone models that replaces the Ring/Silent switch. The Action button would allow users to quickly access various functions and settings without necessarily unlocking the device or navigating to an app.
According to the code found in iOS 17 beta 4, the Action button could have nine different options that users can customize and assign to different actions.
My biggest beef with the new iPhone15 Pro action button is going to be its versatility in the pocket. The mute switch lever was an easy, stealthy way to silence your phone, but now you won't really know if it's silenced if you just try to press a button to silence it. You will have to think, "Did I just mute my phone or did I just unmute it?" The positioning of the mute switch lever just by feeling it would always be a tell tale sign with full confidence of your phone's status.