The iPhone XS and iPhone 11 Pro have the same dimensions. Are the cases interchangeable?
Even though the iPhone XS and iPhone 11 Pro share the same 5.8-inch display, your older XS case will not fit the iPhone 11 Pro thanks to the new redesigned triple‑camera system. The iPhone 11 Pro is equipped with a new "pro-camera" system consisting of an ultra wide camera, wide camera, and telephoto camera. This new design makes it incompatible with iPhone XS cases. This means you will need to purchase a new case if you plan to upgrade to any of the iPhone 11 models.