Allview Ax4 Nano has display Size 7.0", operating system Android 4.2. The device has ram 512 GB too, card support is microSD, up to 32 GB (dedicated slot), it has 4 GB, 512 MB RAM hard disk. Back camera 3.15 MP is awesome, front camera 1 MP is also not bad. Ax4 Nano has power storage, . Device status is Available