The VIVO S1 is a new product by Vivo. The VIVO S1 is powered by Octa-core (2.1 GHz, Quad core, Quad core, Cortex A73 + 2 GHz, Cortex A53) processor. It is paired with 4GB RAM. It has a 3950 mAh battery as far as it has been concerned. https://banglatimes.info/vivo-s1-price-in-bangladesh/