Android phone 4g smartphone phablet series samsung galaxy samsung galaxy a display size 5 inch display resolution 1280 x 720 pixels display resolution hd display type super amoled touchscreen multitouch capacitive pixel density 29372 ppi ram 2 gb internal memory gb 16 gb max memory expansion 64 gb processor core 4 cpu clock speed 12 ghz memory cards microsd microsdhc microsdxc sensors accelerometer g sensor light sensor proximity sensor