Model: Vivo S1 6GB/128GB Price: 21990 Taka OS: Android 9.0 (Pie); Funtouch 9 screen: 6.38" Super AMOLED capacitive touchscreen, 16M colors RAM: 6 GB ROM: 128 GB CPU: Octa-core (2x2.0 GHz Cortex-A75 & 6x1.7 GHz Cortex-A55) Camera: primary 16 MP, secondary 32 MP Battery capacity: 4500mAh Li-Polymer (non-removable)