Asus Zenfone Go ZB690KG official Pictures. Asus Zenfone Go ZB690KG is a Smartphone of asus. The Asus Zenfone Go ZB690KG Android Tablet. Announced Dec 2016. Features 6.9″ Display, 5 MP Or 8 MP Primary Camera, 2 MP Front Camera, 4680 MAh Battery, 8 GB Storage, 1000 MB RAM. Asus Zenfone Go ZB690KG price starts.