Windows phone series nokia lumia display size 37 inch display resolution 800 x 480 pixels display type tft touchscreen capacitive multitouch pixel density 2521 ppi ram 026 gb internal memory gb 8 gb processor manufacturer qualcomm processor type msm7227a processor core 1 cpu clock speed 08 ghz gpu adreno 200 sensor magnetometer location service gps multimedia function fm radio available operating system windows phone 78 pre installed a