Wiko Rainbow Jam 4G official Pictures. Wiko Rainbow Jam 4G is a Smartphone of wiko. The Wiko Rainbow Jam 4G Android Smartphone. Announced Sep 2015. Features 5.0″ Display, Snapdragon 210 Chipset, 8 MP Primary Camera, 5 MP Front Camera, 2500 MAh Battery, 8 GB Storage, 1000 MB RAM. Wiko Rainbow Jam 4G price starts.