Asus Zenfone C ZC451CG official Pictures. Asus Zenfone C ZC451CG is a Smartphone of asus. The Asus Zenfone C ZC451CG Android Smartphone. Announced Jan 2015. Features 4.5″ Display, Intel Atom Z2520 Chipset, 5 MP Primary Camera, 2160 MAh Battery, 8 GB Storage, 1000 MB RAM, Oleophobic Coating. Asus Zenfone C ZC451CG price starts.