1、HD Screen: 5.5in ultra HD screen, also with 1920 x 1080 HD resolution. This phone not only brings a broader visual experience, but also has extraordinary bright colors and amazing clarity, allowing you to explore every detail and maximize your visual experience. 2、Large Capacity Battery: Equipped with a 4800mAh large battery higher than the average level, the battery life of this phone exceeds your expectations. Talk for 17 hours, listen to music for 24 hours, play games for 6 hours, etc. 3、Strongest System and CPU: Equipped with the latest for Android 11.0 system, MT6580 eight core CPU, up to 2.0GHz, and 12nm processor. The architecture runs multiple applications with sufficient mobility and responsiveness to meet your productivity and entertainment needs. 4、Dual SIM Cards: The phone supports dual SIM cards and memory cards, but the SIM card band only supports 2G networks for GSM 850, 900, 1800, 1900, 3G network for WCDMA 850, 2100. 5、Camera: This phone is equipped with a front camera and a rear camera. Touch screen type, capacitive screen. You can take photos, take self photos or record videos anytime and anywhere. Item Type: Phone Material: Plastic, Electronic Mode: S21 Ultra Pro Color: Green Chip: MT6580 8 core CPU Network Format: For GSM 850, 900, 1800, 1900; for WCDMA 850, 2100 GSM 4 frequency dual card dual standby Screen Size: 5.5in/TN Resolution: 1920 x 1080 Running Memory (RAM): 2GB Body Memory (ROM): 16GB Function: Face recognition, with WIFI, BT, FM Interface: Micro USB interface; 3.5mm standard headphone connector System: for Android 11.0 Memory Card Support: Up to 32GB expansion Card Slots: 3 card slots, 2 SIM cards and 1 memory card can be installed at the same time Front Camera: 5MP, f/2.0 aperture, fixed focus Rear Camera: 8MP (color, f/1.8 aperture) auto focus Battery Type: Built in 4800mAh lithium battery (included) 1 x Phone 1 x Earphone 1 x Adapter 1 x Charging Cable 1 x Protective Sleeve 1 x Protective Film 1 x English Manual