1、Dual Card: The maximum support of the smartphone is 128GB (two SIM cards and one small memory card can be installed at the same time). 2、Multi Function: With face recognition function, WiFi, BT, FM, function, for Android USB charging interface, 3.5mm standard headset interface and support for Android 10.0 system. 3、5.0in Screen: Equipped with 5.0inch display screen, the display screen adopts the round corner design with beautiful curve, which is clear and beautiful. 4、High Pixel: The front camera has 24 megapixels, f/2.0 aperture and fixed focal length. Rear camera has 48 million pixels (color, f/1.8 aperture) and auto focus. 5、Excellent Use Experience: Stylish body design and high definition screen design provide you with a great visual experience and a delicate, gentle touch. Item Type: S21 Ultra Smartphone Material: Plastic, Electronics Weight: Approx. 363g / 12.8oz Color: Black Model: S21 Ultra Back Cover: IPS Screen, High Grade Back Cover Chip: MTK6889 (10 Cores) Network Standard: 2G network GSM:850/900/1800/1900, 3G network WCDMA:850/2100Screen Size: 5.0 inch HD+ Screen (display with curvy rounded corners, inches is the diagonal length of the display when the rounded corners are stretched to a right angle) Resolution: 1440x3040 Pixels Running Memory(RAM): 1GB Body Memory(ROM): 4GB Face Recognition, With Wifi, BT, FM, for Android USB Charging Port, 3.5mm Standard Headphone Interface, for Android 10.0 Support Memory Card: Maximum Support For Expansion (Support two SIM cards and one small memory card can be installed at the same time) Front Camera 24 Megapixels, F/2.0 Aperture, Fixed Focal Length Rear Camera 48 Megapixels, Color, F/1.8 Aperture, Autofocus Battery Type: Built In 4900mah Lithium Battery 1 x Mobile Phone 1 x English Instruction 1 x Charger 1 x USB Cable 1 x Wired Headset 1 x Mobile Phone Protective Film 1 x Transparent Protective Sleeve 1 x Card Reader