Features: 1[HD Screen] The smartphone features a 5.72 inch ultra high definition screen with 1920 x 1080 resolution for a broader visual experience with vibrant colors and high clarity, allowing you to explore every detail. 2[4800mAh Battery] Cellphone is equipped with a large 4800mAh battery that can talk for 17 hours, listen to music for 24 hours, play games for 6 hours and more. Intelligent AI battery management reduces excessive cache and extends standby time. 3[System And CPU] Smartphone comes with the latest for Android 11.0 system, MT6580 octa core CPU and up to 2.0GHz with 12nm processor. Run multiple applications with enough responsiveness to meet your work efficiency and entertainment needs. 4[Dual SIM] For Android smartphone supports dual SIM cards and Memory Cards (not included) with a maximum expansion support of 32GB. But the SIM bands only support 2G networks GSM: 850, 900, 1800, 1900 3G Networks WCDMA: 850, 2100. 5[Dual Camera And Touch Screen] This mobile phone is equipped with a front camera and a rear camera, you can take photos, selfies or videos to record the happy times and support face unlock. The touch screen is capacitive for sensitive operation. Item Type: Smartphone Material: Plastic, Electronics Model: S28 Ultra Color: Blue Chip: MT6580 Octa Core CPU Network System: GSM: 850, 900, 1800, 1900 WCDMA: 850, 2100 GSM 4 Band Dual SIM Dual Standby Screen Size: 5.72 Inches TN (The display is designed with graceful rounded corners, inches is the diagonal length of the display when the rounded corners are stretched to right angles) Resolution: 1080 x 1920 Pixels RAM: 2GB ROM: 16GB Function: Face Recognition with WIFI, BT, FM Interface: Micro USB Interface 3.5mm/0.1in Standard Headphone Jack System: For Android 11.0 Support Memory Card: Maximum Support for Expansion 32GB (Three Card Slot: Support for Simultaneous Installation of Two SIM Cards and A Memory Card) Front Camera 5MP, f 2.0 Aperture, Fixed Focal Length Rear Camera 8MP (Color, f 1.8 Aperture) Autofocus Applicable Voltage: 100-240V Battery Type: Built in 4800mAh Li Ion Battery (Included) 1 x Smartphone 1 x Earphone 1 x Adapter 1 x Charging Cable 1 x Protective Case 1 x Protective Film 1 x English Manual