Gionee Marathon M3 official Pictures. Gionee Marathon M3 is a Smartphone of gionee. The Gionee Marathon M3 Android Smartphone. Announced Nov 2014. Features 5.0″ Display, 8 MP Primary Camera, 2 MP Front Camera, 5000 MAh Battery, 8 GB Storage, 1000 MB RAM. Gionee Marathon M3 price starts.