The mechanical volume and power buttons could be swapped for solid state ones. According to the analyst, the buttons could function like the solid-state home button first released on the iPhone 7 that you can't physically press down but vibrates in response to touch.

The second and third generation models of the budget-friendly iPhone SE feature a solid-state home button, which is powered by Apple. This technology is used by Apple to enable the use of Force Touch on its laptops.

To make users feel like they are pressing physical buttons, Apple will have to add Taptic Engines on the left and right sides of the two high-end iPhone 15 models. There are three Taptic engines in the iPhone 15. The two models might retain the same clicky power and volume buttons.

The company wanted to bring a solid-state button to its Apple Watch in 2018, but it hasn't done so yet. We have been hearing a lot of rumors about the upcoming device, including that it may drop the "Pro Max" branding for "Ultra", and that the Dynamic Island will be on all models. The first Apple product to feature theusb-c is the iPhone 15.