I like vivo v9 because of its features and functionality as well as more advance security.
Features of this phone like sensors, dual camera, high quality of camera auto focus its shape makes it more attractive.
Customer service of the vivo company is always helpful because my brother have this phone and once he was facing a problem with its software updation and he called customer care centre and they gave proper detailed information to solve the problem.
If we talk about billing and charges.there are no any extra charges price of this product is genuine and payable for common user.
As its shape color screen resolution sound quality processor and software configuration is really effective. I like this product and also recommend you to buy this phone if you want to buy new phone