Xiaomi Redmi K20 has display Size 6.39", operating system Android 9.0; MIUI 10. The device has ram 8 GB too, card support is No, it has 256 GB, 8 GB RAM or 64/128 GB, 6 GB RAM hard disk. Back camera 48 MP is awesome, front camera 20 MP is also not bad. Redmi K20 has power storage, . Device status is Available