I have the iphone 5 right now. Is the 5s screen better? if yes, what has been upgraded? Is it the color, contrast, etc? How about the iphone SE screen, is it better than the Iphone 5s screen as well since it is a later model? I compared the iphone 5 to the iphone 6 and the screen is noticeably better, but i don't want a 4.7" phone so i am sticking with either the 5 or 5s or SE.