Vivo X9s has display Size 5.5", operating system Android 7.1, up to Android 8.0; Funtouch 3.1. The device has ram 4 GB too, card support is No, it has 64 GB, 4 GB RAM hard disk. Back camera 16 MP is awesome, front camera 20 MP is also not bad. X9s has power storage, . Device status is Available