HTC Desire 620G Dual Sim official Pictures. HTC Desire 620G Dual Sim is a Smartphone of htc. The HTC Desire 620G Dual Sim Android Smartphone. Announced Dec 2014. Features 5.0″ Display, MT6592 Chipset, 8 MP Primary Camera, 5 MP Front Camera, 2100 MAh Battery, 8 GB Storage, 1000 MB RAM. HTC Desire 620G Dual Sim price starts.