4g smartphone android phone phablet dual sim phone series asus zenfone display size 55 inch display resolution 1920 x 1080 pixels display resolution full hd display type ips display material gorilla glass 3 pixel density 40053 ppi ram 4 gb internal memory gb 32 gb max memory expansion 64 gb processor core 4 cpu clock speed 23 ghz sim card micro sim memory cards microsd microsdhc microsdxc sensors accelerometer g sensor light sensor pr