Vivo X21i has display Size 6.28", operating system Android 8.1; Funtouch 4. The device has ram 6 GB too, card support is microSD, up to 256 GB (uses shared SIM slot), it has 128 GB, 4 GB RAM or 64 GB, 6 GB RAM hard disk. Back camera 12 MP is awesome, front camera 24 MP is also not bad. X21i has power storage, . Device status is Available
Download X21i ADB Driver, extract zip file of X21i and run it
Download Vivo X21i Qualcomm DriverDownload X21i Qualcomm Driver, extract zip file of X21i and run it