Shipments of tablets and "two-in-one" devices that combine tablet and laptop features sank to 47.1 million in a drop of nearly six percent from the first three months of last year, according to market-tracker IDC.
"Although the tablet market is in decline, two-in-one's are certainly a bright spot," said IDC senior research analyst Jitesh Ubrani.
"While two-in-one, or detachables, still account for a small portion of the overall market, growth in this space has been stunning."
The analyst said that companies such as Asus, Acer, and E-FUN have scored with value-priced two-in-one devices, while Microsoft has seen success at the high-end of the market with the Surface Pro 3.
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Apple shipped 12.6 million iPads in the quarter as compared to 16.4 million in the same period a year earlier, the market-tracker reported.
IDC expected iPad sales to continue to shrink until an innovative new model, perhaps with a larger screen, is introduced.
Chinese computer titan Lenovo was one of the few tablet makers seeing growth in the declining overall market thanks to a diverse product line and low-price offerings, according to IDC.
Lenovo shipped 2.5 million tablets in the quarter as compared to two million shipped during the first three months of last year, IDC reported.