iPhone 4S was about the right size, iPhone 5C had a really good feel. If they could put those two together and maybe tighten the chin and forehead to basically

iPhone 4S was about the right size, iPhone 5C had a really good feel. If they could put those two together and maybe tighten the chin and forehead to basically hit the comfortable limit of thumb movement across the screen, I think it'd be spot-on.