Vivo v9 sound quality is bes out of best it is verry easy to use style and design is gust like iphoneX but I do like the build quality the frony camera is 24 Mp the selfy of this camera comes verry aesome it also has dual camera 16mp and secondary of 15 mp the led is better its finger print scaner is fast it has bright display which helps me in day light they also give me pre instaled screen protecter the camera has many features it is slim it is liight in weight it is nice for gaming I am gust impresed with the gaming quality the calling quality is good it is value for money I love this vivo V9