Worldwide tablet shipments continue to surge, growing 142.4 percent year over year in the first quarter of 2013 (1Q13), according to preliminary data from IDC Worldwide Quarterly Tablet Tracker. Tablet shipments totaled 49.2 million units in 1Q13, surpassing that of the entire first half of 2012. With growth fueled by increased market demand for smaller screen devices, tablets have shown no sign of slowing down.

Apple outperformed IDC’s most recent projections for the quarter, shipping 19.5 million units compared to a forecast of 18.7 million units. The company, which historically has experienced a steep drop off in first quarter shipments (following strong holiday sales in the fourth quarter), saw some smoothing of that seasonality this year. Number two vendor Samsung also performed above expectations and managed to grow its shipments over the fourth quarter as more of the company’s smaller-sized tablets began to gain traction in the market. Samsung has also used its recent Android smartphone growth to help bring its tablet product line into new markets and channels, leveraging the opportunity to package and bundle. The strong performance of the two market leaders helped drive total shipments to an impressive 49.2 million units for the quarter.

“Sustained demand for the iPad mini and increasingly strong commercial shipments led to a better-than expected first quarter for Apple,” said Tom Mainelli, Research Director, Tablets at IDC. “In addition, by moving the iPad launch to the fourth quarter of 2012, Apple seems to have avoided the typical first-quarter slowdown that traditionally occurred when consumers held off buying in January and February in anticipation of a new product launch in March.”