Worldwide tablet plus 2-in-1 shipments slipped to 50.4 million units in the first calendar quarter of 2014 (1Q14) according to preliminary data from the International Data Corporation (IDC), with Samsung to close the gap with market leader Apple. The total represents a sequential decline of -35.7% from the high-volume holiday quarter and just 3.9% growth over the same period a year ago, IDC said. The slowdown was felt across operating systems and screen sizes and likely points to an even more challenging year ahead for the category.

"The rise of large-screen phones and consumers who are holding on to their existing tablets for ever longer periods of time were both contributing factors to a weaker-than-anticipated quarter for tablets and 2-in-1s," said Tom Mainelli, IDC Program Vice President, Devices and Displays. "In addition, commercial growth has not been robust enough to offset the slowing of consumer shipments."

Apple maintained its lead in the worldwide tablet plus 2-in-1 market, shipping 16.4 million units. That's down from 26.0 million units in the previous quarter and well below its total of 19.5 million units in the first quarter of 2013. Despite the contraction, the company saw its share of the market slip only modestly to 32.5%, down from the previous quarter's share of 33.2%. Samsung once again grew its worldwide share, increasing from 17.2% last quarter to 22.3% this quarter. Samsung continues to work aggressively with carriers to drive tablet shipments through attractively priced smartphone bundles. Rounding out the top five were ASUS (5%), Lenovo (4.1%), and Amazon (1.9%).

Top Five Tablet Vendors, Shipments, and Market Share, First Quarter 2014 (Preliminary Results, Shipments in millions)

Source: IDC Worldwide Quarterly Tablet Tracker, April 30, 2014

Note: Total tablet market includes slate tablets plus 2-in-1 tablets.