Product selling points:Water Drop Project:Model S21+ + designed the 4 corners to be U-type also, making it softer and sleekerBack cover: plastic plating gradient color high-end back coverChip: MTK6580P quad-core CPUNetwork standard: WCDMA850/2100, GSM4 frequency dual card dual standby, Nano SIM card, support 2 SIM cards + memory card at the same timeScreen size: 6.3-inch HD+ high-definition full-fit water drop screen (display adopts a curved rounded design, inch is the diagonal length when the rounded corners of the display are stretched to a right angle)Resolution: 800X1024 pixelsOperating memory (RAM) 1GBBody memory (ROM) 16GBFace recognition, with WIFI+BT+FM+GPS (support map navigation, positioning)Support memory card: maximum support expansion 128GFront camera 2 million pixels, f/2.0 aperture, fixed focal lengthRear camera 5 million pixels (color, f/1.8 aperture) autofocusBattery capacity 2800mAh mAh, Micro USB interface, 3.5 headphone jackSpecification:CPU :MTK6580P quad-core CPUCore Count: Quad CoreFrequency :2.0GHzDual Standby Card slot: 3 select 2 cards, dual card dual standby Nano-SIM card + Nano-SIM cardType Capacitive :Telefingers screenConnectivity：Cellular :GSM/WCDMA/LTENetwork :Frequency 2G:GSM850/900/1800/1900MHz;3G:WCDMA850/1900/2100MHzCamera Function:Front Camera: 2MP,Back Camera: 5MPWLAN :Support, 802.11b/g/n, 2.4G/5GBluetooth :Bluetooth4.0GPS:Bullt-in GPS, support A-GPSPackage Included:1X Mobile phone1X Packing box1X Instruction manual1X Changer1X USB cable1X Headset1X Mobile phone protective film1X Protective cover1X stylus