A picture would help back-up your findings.
not sure about this but if you look at your iCloud backup there is a phone icon next to it and to me it looks like a iPhone 4 with a bigger screen![]()
Are you talking about this icon?
Neither of those appear any different than the current screen size
I think we have an example of a "That'll do" design approach from apple, that's it. Although anything is possibleHere: