iPhone 4is no small thing to review.it may be Apple's most successful launch yet.Apple is calling the LED backlit, 960 x 640 IPS screen the "Retina Display" due to its high resolution and pixel density. At the same 3.5-inches as the older screens, the new display manages an insane 326ppi pixel density along with an 800:1 contrast ratio.you have options for a 5x digital zoom (which produces results that look like a digital zoom) and basic on / off / auto settings for the flash.