Smartphone 4Q sales rise 36 pct led by Samsung

The findings from the research firm International Data Corp. are the latest sign of the technology upheaval being wrought by the growing popularity of smartphones that can perform a wide variety of tasks, including surfing the Web and taking high-quality photos.

Companies whose fortunes are tied to the PC industry have been particularly hard hit by the shift to smartphones and tablet computers.

While some smartphone models were in short supply during the holiday season, fourth-quarter PC shipments fell by 6 percent from the previous year, according to another IDC report released earlier this month.

IDC estimates 219 million smartphones were shipped during the final three months of last year. That compares with nearly 161 million in the same 2011 period. Smartphones accounted for about 45 percent of all mobile phone shipments in the fourth quarter, the highest percentage recorded by IDC.

Samsung Electronics Co. retained its bragging rights as the smartphone leader, shipping nearly 64 million devices for a 29 percent share of the global market.

Apple Inc. ranked second with nearly 48 million iPhones shipped during the fourth quarter, translating into a market share of 22 percent.

For all of 2012, IDC estimated nearly 713 million smartphones were shipped worldwide, a 44 percent increase from the previous year. Meanwhile, annual PC shipments fell 3 percent from 2011, IDC said. It was the first annual decline since 2001.