Oppo A55 S has display Size 6.5", operating system Android 11, ColorOS 11.1. The device has ram 6/8 GB too, card support is microSDXC, it has 128GB 6GB RAM, 128GB 8GB RAM hard disk. Back camera 13 MP is awesome, front camera 8 MP is also not bad. A55 S has power storage, . Device status is Available