Analyst firm Canalys said in November that phablets larger than 5 inches accounted for 22% of all smartphones shipped in the third quarter.
The phablets, made mainly by Samsung and running the Android operating system, include the 6.3-in. Galaxy Mega and the 5.7-in Galaxy Note 3. Apple's new iPhone 4S and 4C are still 4-in. devices, but the company launched a smaller tablet, the iPad mini, with a 7.9-in. screen in November 2012.
Canalys recently predicted that tablet shipments will reach 285 million units in 2014, about 15 million higher than IDC's forecast for 2014 of 270.5 million.
Also in 2014, Canalys said tablets will almost outship all PCs combined, a category including desktops and laptops.
Sign up for MIS Asia eNewsletters.