Oppo A11 has display Size 6.5", operating system Android 9.0; ColorOS 6.0. The device has ram 4/6 GB too, card support is microSD, up to 256 GB (dedicated slot), it has 64GB 4GB RAM, 128GB 4GB RAM, 128GB 6GB RAM, 256GB 6GB RAM hard disk. Back camera 12 MP is awesome, front camera 8 MP is also not bad. A11 has power storage, . Device status is Available