Import of tablet computers rose 130 percent year-on-year in the first quarter and 28 percent over the previous quarter to 130,600 units, US market research company IDC said.
Vo Le Thanh Tam, an IDC market analyst, said imports of low-cost Android tablets mostly fueled the growth.
Affordable tablets cost VND1.5-4 million (US$71.3-190), while the mid-priced and high-end segments start at VND7 million.
Vietnam's per capita income last year was $1,555.
South Korean manufacturer Samsung suffered the most from the influx of budget tablets, while US firm Apple continued to lead the market, Tam said.
Daniel Pang, head of IDC's research group specializing in the Asia-Pacific region, said the tablet market has "tremendous room" for growth in Vietnam.
Meanwhile, PC imports slumped by 20 percent in the first quarter to less than 500,000 units.
IDC has forecast a full-year growth of 5 percent in 2013, the slowest pace in the last several years.
Computer manufactures are under pressure to switch from high-end to less expensive products due to fierce competition from smartphones tablets, it said.
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