Micromax Q391 Canvas Doodle 4 official Pictures. Micromax Q391 Canvas Doodle 4 is a Smartphone of micromax. The Micromax Q391 Canvas Doodle 4 Android Smartphone. Announced May 2015. Features 6.0″ Display, MT6582M Chipset, 8 MP Primary Camera, 2 MP Front Camera, 3000 MAh Battery, 8 GB Storage, 1000 MB RAM, Corning Gorilla Glass 3. Micromax Q391 Canvas Doodle 4 price starts.