Formal results are expected to be posted on Jan. 25.
The South Korean giant also said it benefited from demand for products from rival Apple (NASDAQ:AAPL), for which it makes chips, components and displays for its iPhone and iPad product line. Samsung’s Galaxy S III phone, introduced in July, became the world's best-selling smartphone in the third quarter, when it sold 18 million units; analysts believe sales were about 15 million units in the fourth quarter.
But sales of the Galaxy Note II tablet, which poses a challenge to the iPad line, were strong, at about 8 million units, the company said. Sales are expected to continue to be strong in the run-up to the new lunar year, which begins next month, the company said.
Shares of Samsung closed at 1.5 million won on Tuesday. They’ve gained 46 percent in the past 52 weeks.