Samsung Electronics more than doubled its share of the tablet computer market in the fourth quarter of 2012, gaining on segment leader Apple as total unit shipments jumped 75%.
Samsung, which makes the Galaxy range of tablets, sold 7.9 million units, up from 2.2 million a year ago, taking its market share to 15.1%.
Market-leader and iPad-maker Apple saw its share slide to 43.6% from 51.7%, despite also seeing a jump in sales.
The two have been competing to get a greater share of the tablet PC market, seen as key to their overall growth. New products, lower average prices and increased holiday spending all contributed to the surge in demand for tablets.
Apple's iPad faced stronger competition from Samsung tablets based on Google's Android software and Microsoft's Windows 8, though it held the top spot as sales benefited from the introduction of the iPad mini and a fourth- generation device.
Amazon.com was in third place with 12% of shipments, followed by Asustek Computer and Barnes & Noble.
Amazon increased shipments of its Kindle Fire tablets to 6 million in the fourth quarter from 4.7 million a year earlier, boosting the online retailer's share to 12% from 8.35 in the previous three months. Still, Amazon's market share dropped from 16% in the fourth quarter of 2011.
The tablet PC market is expected to grow further in the coming years with a number of firms have launched tablets in an attempt to cash in on the booming sector.
Among the latest entrants has been Microsoft, which launched its Surface tablets, powered by the Windows 8 system, late last year.
However, the response to the firm's tablets was "muted at best". Microsoft shipped nearly 900,000 units in the three months to end of December.
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