Yezz Billy 4.7 official Pictures. Yezz Billy 4.7 is a Smartphone of yezz. The Yezz Billy 4.7 Windows Mobile Smartphone. Announced May 2014. Features 4.7″ Display, Snapdragon 200 Chipset, 8 MP Primary Camera, 2 MP Front Camera, 1780 MAh Battery, 8 GB Storage, 1000 MB RAM, Asahi Dragontrail Glass. Yezz Billy 4.7 price starts.