Xiaomi Mi Max has display Size 6.44", operating system Android 6.0, up to 7.0; MIUI 10. The device has ram 4 GB too, card support is microSD, up to 256 GB (uses SIM 1 slot), it has 16 GB, 2 GB RAM; 32/64 GB, 3 GB RAM128 GB, 4 GB RAM - Prime model hard disk. Back camera 16 MP is awesome, front camera 5 MP is also not bad. Mi Max has power storage, . Device status is Available