Micromax Bolt D321 has display Size 5.0", operating system Android 4.4.2. The device has ram 512 GB too, card support is microSD, up to 32 GB, it has 4 GB, 512 MB RAM hard disk. Back camera 5 MP is awesome, front camera 2 MP is also not bad. Bolt D321 has power storage, Up to 7 h (3G). Device status is Available