5. Huawei

In the overall Chinese mobile phone market - counting both smartphones and feature phones -Samsung, Nokia and ZTE top the rankings for the second quarter, said IDC.

IDC's Wong told Reuters that it was "inevitable" that Chinese brands would gain more share due to their aggressive marketing and close ties with local carriers China Mobile, China Unicom and China Telecom.

"In the mid- to long-term, it's very possible they will start to dominate four of the top five rankings, leaving Samsung as the only one standing. At that point, even Samsung will start to feel the pressure."