A newly-discovered iPhone 14 Pro prototype features one of the earliest known incarnations of Apple's scrapped haptic button project.

Apple uses a variety of test devices and prototypes when it is considering new iPhone features, and one such test device was recently discovered

We’re already in the iPhone 16 era, but taking a look at old Apple prototypes is always interesting as we can see details that the company scrapped during the development process. Now a rare iPhone 14 Pro prototype gives us a closer look at what the rumored haptic volume button might look like.