Xiaomi Redmi 4 China has display Size 5.0", operating system Android 6.0.1; MIUI 8. The device has ram 2 GB too, card support is microSD, up to 256 GB (uses SIM 2 slot), it has 16 GB, 2 GB RAM hard disk. Back camera 13 MP is awesome, front camera 5 MP is also not bad. Redmi 4 China has power storage, . Device status is Available