Vivo Y21 has display Size 6.51", operating system Android 11, Funtouch 11.1. The device has ram 4 GB too, card support is microSDXC (dedicated slot), it has 64GB 4GB RAM, 128GB 4GB RAM hard disk. Back camera 13 MP is awesome, front camera 8 MP is also not bad. Y21 has power storage, . Device status is Available