A:AnswerThe way the case works you can either put the magnetic panel on the back of your existing case (comes with a 3m stickie) or use the panel that goes between the case and the phone (inside case) so you don’t have anything sticking to your case. I used it with an iPhone XS Max so it will fit both 8+ and XR. Sometimes phone wiggles when on a bumpy road (in my case I’d then just rotate it horizontally) but other than that it’s a good solution.