Samsung Galaxy Note 4 Duos official Pictures. Samsung Galaxy Note 4 Duos is a Smartphone of samsung. The Samsung Galaxy Note 4 Duos Android Smartphone. Announced Oct 2014. Features 5.7″ Display, Snapdragon 805 Chipset, 16 MP Primary Camera, 3.7 MP Front Camera, 3000 MAh Battery, 16 GB Storage, 3 GB RAM, Corning Gorilla Glass 4. Samsung Galaxy Note 4 Duos price starts.