QMobile Noir A550 has display Size 4.5", operating system Android 4.2, up to 4.4. The device has ram 1 GB too, card support is microSD, up to 32 GB, it has 4 GB, 1 GB RAM hard disk. Back camera 8 MP is awesome, front camera 2 MP is also not bad. Noir A550 has power storage, . Device status is Available