Vivo Y55s official Pictures. Vivo Y55s is a Smartphone of vivo. The Vivo Y55s (2017) Android Smartphone. Announced Feb 2017. Features 5.2″ Display Snapdragon 425 Chipset 13 MP Primary Camera 5 MP Front Camera 2730 MAh Battery 16 GB Storage 3 GB RAM. Vivo Y55s price starts.