T-Mobile MyTouch 4G official Pictures. T-Mobile MyTouch 4G is a Smartphone of t_mobile. The T-Mobile MyTouch 4G Android Smartphone. Announced Oct 2010. Features 3.8″ Display, Snapdragon S2 Chipset, 5 MP Primary Camera, 1400 MAh Battery, 4 GB Storage, 768 MB RAM. T-Mobile MyTouch 4G price starts.