Vivo is a mobile phone brand specializing in the field of smart phones, vivo and the pursui...

China Telecom Corporation is one of the largest state-owned communication enterprises in Ch...

Dcamp: An OTO collection living hall (a combination of online shopping mall and offline sto...

China Mobile Communications Corporation is the largest mobile communication operator in Chi...

Authoritative data organization IDC statistics, OPPO2016 has been the first mobile phone ma...