Xiaomi Mi 4s Type: Smartphone; Smart Phone OS: Android; Smart Phone OS ver: MIUI 7.0 Android OS, v6.0 (Marshmallow); SIM: Micro SIM, Nano SIM, Dual SIM, Dual Standby; CPU: Qualcomm MSM8992 Snapdragon 808; Processor Speed: 1.80 GHz Hexa-core; Storage: 64GB; ...