Vivo Y15S (2015 official Pictures. Vivo Y15S (2015 is a Smartphone of vivo. The Vivo Y15S (2015) Android Smartphone. Announced Aug 2015. Features 4.5″ Display, MT6580 Chipset, 5 MP Primary Camera, 2 MP Front Camera, 1900 MAh Battery, 8 GB Storage, 1000 MB RAM. Vivo Y15S (2015 price starts.