solid-state button

Up until now, Apple was reportedly planning on replacing physical Power and Volume buttons on the iPhone 15 Pro with solid-state alternatives

In addition to switching from mechanical to touch-sensitive, solid-state buttons, it looks like Apple is redesigning the Volume and Mute buttons altogether

If Apple does make the switch to solid-state buttons, they will likely be exclusive to next year's higher-end iPhone 15 Pro lineup

Apple may be looking to replace the current buttons used on iPhone with solid-state buttons on iPhone 15 Pro models.