Micromax Bolt Q381 official Pictures. Micromax Bolt Q381 is a Smartphone of micromax. The Micromax Bolt Q381 Android Smartphone. Announced Jul 2016. Features 5.0″ Display Spreadtrum SC7731G Chipset 5 MP Primary Camera 2000 MAh Battery 8 GB Storage 1000 MB RAM. Micromax Bolt Q381 price starts.