Features of Xiaomi X1General Network 4G VoLTE Micro SIM No Dual SIM Yes Nano SIM Yes Touch-screen Yes Display Pixel Density ~401 ppi density Screen to body ratio 79.2% Glass Material Corning Gorilla Glass Color Reproduction 16M colors Touchscreen Type Capacitive touchscreen Screen Size 5.5 inch Screen Resolution 1920 X 1080 pixels Display Type OLED Features Fingerprint Unlock Yes Memory Internal Memory 64 GB External Memory 128 GB RAM 6 GB Camera Dual Rear Camera Yes Dual Camera Location Rear Rear Camera 12 MP Rear Camera (2nd Lens) 12 MP Front Camera 5 MP Camera Details Digital Zoom, Auto Flash, Face detection, Touch to focus Portrait Mode Yes 4K Recording Yes Video Recording Rear Camera Video Quality 1080 p Connectivity WIFI Yes GPRS Yes USB Yes OS OS Android OS Version Android 7.0 Nougat Processor Processor Type Octa Core Processor Speed 2.2 Ghz Chipset Group Snapdragon 660 Chipset Details Qualcomm Snapdragon 660 MSM8956 Battery Battery Type Li-ion Battery Capacity 4100 mAh Sound 3.5mm Jack Yes Loudspeaker Yes Body Type Bar