Samsung Galaxy Tab 7.7 LTE I815 official Pictures. Samsung Galaxy Tab 7.7 LTE I815 is a Smartphone of samsung. The Samsung Galaxy Tab 7.7 LTE I815 Android Tablet. Announced Jan 2012. Features 7.7″ Display, Exynos 4210 Chipset, 3.15 MP Primary Camera, 2 MP Front Camera, 5100 MAh Battery, 32 GB Storage, 1000 MB RAM, Corning Gorilla Glass. Samsung Galaxy Tab 7.7 LTE I815 price starts.