According to Counterpoint Research, Tecno, Infinix and Apple emerged as the fastest-growing brands during the quarter.
Samsung led the market with a 21% share, followed by Xiaomi (17%) and OPPO (15%).
5G smartphones captured 36% of overall shipments in the region.
Beating the trend, Apple's shipments increased by 19% YoY during the quarter. Apple is still seeing a strong demand for the iPhone 13 and 14 series, adding to the demand for the newly launched 15 series, according to the report.
"SEA remains an important market for the tech ecosystem due to its under-penetration in many areas, like online banking, e-wallet usage, online shopping and overall internet usage," it added.
Indonesia and Thailand saw flattish growth in smartphone shipments while other key SEA countries like the Philippines, Malaysia and Vietnam declined YoY.
Xiaomi's shipments grew 7%. Its Redmi 12 series has been doing quite well across all key SEA countries.
Transsion witnessed the highest growth during the quarter. Infinix grew 42% YoY, Tecno 148% and itel witnessed a 17% growth.
Infinix and Tecno are offering strong base specifications along with a varied model portfolio.
«Samsung and Xiaomi have been able to market their models in a much better manner across all key SEA countries, while sustaining new launches across price ranges, compared to the limited options from brands like OPPO and Vivo,» said senior analyst Glen Cardoza.