0MP+16MP dual rear camera with f/2.0 normal, video, expert, time-lapse, panorama, portrait, slow-motion | 20MP front camera with f/1.75, Phase Detection autofocus 15.95 centimeters (6.28-inch) HD + on-cell OLED capacitive touchscreen with 2280 x 1080 pixels resolution, 401 ppi pixel density and 16M color support Memory, Storage and SIM: 6GB RAM | 128GB internal memory expandable up to 256GB | Dual SIM (nano+nano) dual-standby (4G+4G) Android v8.0 ColorOS 5.2 operating system with 2.2GHz Qualcomm Snapdragon 660 octa core processor, Adreno 512 GPU 3430mAH lithium polymer battery providing talk-time of 21 hours and standby time of 400 hours