iPhone Xr will not fit into a 7 plus case. Dimensions (length, width, height) are not the same for those iPhones. And the camera lens size and placement are also different. So the openings will not line up for lens or ports. You’ll have to spring for a new case if you’re getting one of the new iPhones: Xs, Xs Max, Xr. I highly recommend Otterbox Defender series.