Money Need a new (older) iPhone? The differences are slight among XR and earlier models July 27, 2019July 27, 2019Jefferson Graham, USA TODAYComments Off on Need a new (older) iPhone? The differences are slight among XR and earlier models You can pay $750 for latest entry level iPhone, or $450 for 4 year old iPhone 7. The new photo features are the major difference among the models.