Samsung Galaxy M21 S has display Size 6.4", operating system Android 10, One UI 2.5. The device has ram 4 GB too, card support is microSDXC (dedicated slot), it has 64GB 4GB RAM, 128GB 6GB RAM hard disk. Back camera 64 MP is awesome, front camera 32 MP is also not bad. Galaxy M21 S has power storage, . Device status is Available