Xiaomi Mi A3 has display Size 6.09", operating system Android 9.0; Android One. The device has ram 4/6 GB too, card support is microSD, up to 256 GB (uses shared SIM slot), it has 64GB 4GB RAM, 128GB 4GB RAM, 128GB 6GB RAM hard disk. Back camera 48 MP is awesome, front camera 32 MP is also not bad. Mi A3 has power storage, . Device status is Available