Phone Name: vivo Y31
Release Date: Released 2015, October
Operating system: Android 5.1
Screen Size & Resolution: 4.7" 720x1280 pixels
Camera: 8 MP Video recorder
RAM and Chipset: 1 GB RAM MT6580
Storage: 8GB storage, microSD card slot
Battery: 2100 mAh Li-Po
Release Date: Released 2015, October
Operating system: Android 5.1
Screen Size & Resolution: 4.7" 720x1280 pixels
Camera: 8 MP Video recorder
RAM and Chipset: 1 GB RAM MT6580
Storage: 8GB storage, microSD card slot
Battery: 2100 mAh Li-Po