Vivo X21i official Pictures. Vivo X21i is a Smartphone of vivo. The Vivo X21i Android Smartphone. Announced May 2018. Features 6.28″ Display MT6771 Helio P60 Chipset Dual: 12 MP (f/1.8 1/2.5″ 1.4µm Dual Pixel PDAF) + 5 MP Primary Camera 24 MP Front Camera 3425 MAh Battery 128 GB Storage 6 GB RAM. Vivo X21i price starts.