Brand: Motorola Model: XT1581 : Black/White Network standard: Mobile Unicom Telecom 4G / 3G / 2G Waterproof protection: with inner and outer double waterproof nano coating Screen size: 5.4 inches Resolution: 2560 x 1440 SIM card: Nano SIM card Camera pixels: rear 21 million front 500 million Operating system: Andrews 5.1.1 Sensors: Acceleromter/Ambient Light/Gyroscope/Hall Effect/Infrared/Magnetometer/Proximity Wi-Fi: 802.11a/b/g/n/ac 2.4 GHz + 5 GHz with MIMO Bluetooth Technology: Bluetooth version 4.1 LE Standby mode: dual card dual standby Phone memory: 3GB RAM +64GB ROM CPU model: Qualcomm Xiaolong 810 CPU frequency: eight cores 2.0Ghz Connectivity: Micro USB, 3.5 mm headset jack Type: Non-removable capacity: 3760mAh Phone size: 78x149.8x7.6-9.2mm (surface thickness) a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a