Samsung Galaxy Tab Pro 12.2 3G official Pictures. Samsung Galaxy Tab Pro 12.2 3G is a Smartphone of samsung. The Samsung Galaxy Tab Pro 12.2 3G Android Tablet. Announced Jan 2014. Features 12.2″ Display, Exynos 5420 Octa Chipset, 8 MP Primary Camera, 2 MP Front Camera, 9500 MAh Battery, 64 GB Storage, 3 GB RAM. Samsung Galaxy Tab Pro 12.2 3G price starts.