Samsung Galaxy A3 Duos official Pictures. Samsung Galaxy A3 Duos is a Smartphone of samsung. The Samsung Galaxy A3 Duos Android Smartphone. Announced Oct 2014. Features 4.5″ Display, Snapdragon 410 Chipset, 8 MP Primary Camera, 5 MP Front Camera, 1900 MAh Battery, 16 GB Storage, 1000 MB RAM, Corning Gorilla Glass 4. Samsung Galaxy A3 Duos price starts.