Samsung Galaxy J7 Duo official Pictures. Samsung Galaxy J7 Duo is a Smartphone of samsung. The Samsung Galaxy J7 Duo Android Smartphone. Announced Apr 2018. Features 5.5″ Display Exynos 7885 Chipset Dual: 13 MP (f/1.9 AF) + 5 MP Primary Camera 8 MP Front Camera 3000 MAh Battery 32 GB Storage 4 GB RAM. Samsung Galaxy J7 Duo price starts.