lumia 800 shares its design with the previously released meego-based nokia n9 and it was originally meego cdma-variant for verizon with codename rm-716 searay. the outward differences are one added physical button dedicated to the camera on the right side of the phone, and a dual led flash moved directly above the carl zeiss camera lens. despite a similar exterior, the lumia 800 has a different interior than n9. lumia 800's chipset comes from qualcomm, whereas the n9 is based on a texas instruments omap chipset and cpu. like the n9, it has a convex-curved gorilla glass amoled pentile screen with a clearblack antiglare filter. the screen diagonal is 3.7 inches (800 x 480 pixels), compared with 3.9 inches (854 x 480 pixels) for n9, to conform with the windows phone specifications list, which includes three capacitive softkeys placed under the glass. a through-colored unibody shell is made from polycarbonate plastic.