A lower resolution image would still look better upscaled on a higher resolution display because it would reduce the screen-door effect. Plus, it would help fut

A lower resolution image would still look better upscaled on a higher resolution display because it would reduce the screen-door effect. Plus, it would help future-proof the device a little bit. But that might be the problem, they don't have to have too large of jumps between iterations so they have more launch events and sell more devices.