Asus Zenfone Pegasus 3s official Pictures. Asus Zenfone Pegasus 3s is a Smartphone of asus. The Asus Zenfone Pegasus 3s Android Smartphone. Announced Jan 2017. Features 5.2″ Display, MT6750 Chipset, 13 MP Primary Camera, 8 MP Front Camera, 5000 MAh Battery, 64 GB Storage, 3 GB RAM. Asus Zenfone Pegasus 3s price starts.