Total smartphone shipments in Southeast Asia (SEA) hit slightly over 100 million units in 2015, posting an on-year growth of 22%, according to IDC.

All the emerging markets in SEA witnessed double-digit on-year growth, but Singapore, the only mature market in the region, recorded an approximate 5% on-year decline.

Indonesia remained the largest market, accounting for nearly 29% of the total SEA smartphone shipments. It was followed by Thailand and the Philippines at 22% and 14%, respectively.

Samsung remained as the top vendor in the region with an 18% growth over 2014, as it launched the Galaxy J series that had models ranging from US$75 to US$200, IDC noted.

Asustek Computer broadened its range of handsets, introducing devices with price points ranging from US$100 to US$250 and larger screens such as the ZenFone 2 series and the ZenFone Go, IDC added.

IDC expects the smartphone shipments in SEA to continue its upward trend over the next few years, reaching 113 million units (12% growth) in 2016 and 166 million units by 2020. The countries that will continue to lead the growth will be Indonesia, Thailand, and Vietnam.