HTC Desire 820s Dual Sim official Pictures. HTC Desire 820s Dual Sim is a Smartphone of htc. The HTC Desire 820s Dual Sim Android Smartphone. Announced Mar 2015. Features 5.5″ Display, MT6752 Chipset, 13 MP Primary Camera, 8 MP Front Camera, 2600 MAh Battery, 16 GB Storage, 2 GB RAM. HTC Desire 820s Dual Sim price starts.