Samsung Galaxy S5 Mini Duos official Pictures. Samsung Galaxy S5 Mini Duos is a Smartphone of samsung. The Samsung Galaxy S5 Mini Duos Android Smartphone. Announced Aug 2014. Features 4.5″ Display, 8 MP Primary Camera, 2.1 MP Front Camera, 2100 MAh Battery, 16 GB Storage, 1.5 GB RAM. Samsung Galaxy S5 Mini Duos price starts.