Windows phone 4g smartphone series nokia lumia display size 47 inch display resolution 800 x 480 pixels display type ips touchscreen multitouch capacitive display properties scratch resistant display material gorilla glass 2 pixel density 1985 ppi ram 05 gb internal memory gb 8 gb max memory expansion 64 gb processor manufacturer qualcomm processor type snapdragon s4 processor core 2 cpu clock speed 12 ghz sim card micro sim memory cards