5. OPPO

 

5. OPPO

Guangdong OPPO Mobile Telecommunication Corp., Ltd, stylized as OPPO, is a Chinese company founded by Tony Chen in 2001. Some popular handset launched by the company is OPPO A31, OPPO F15, OPPO A5, OPPO F9, OPPO A9, OPPO Reno2, OPPO F3, F5, F7, F11 Pro, F5 Youth, OPPO A83.

Sales Per Year 29 million units, Revenue Per Year $137.7 million makes it fifth in the list.