SEOUL, Feb. 21 (Xinhua) -- South Korean tech giant Samsung Electronics unveiled a foldable smartphone, featuring a multi-taking function at the same time, the company said Thursday.

The event to make the debut of Galaxy Fold was held in San Francisco, the company said in a statement. The new gadget is a 4.6-inch smartphone that morphs into a 7.3-inch tablet when unfolded.

The device is equipped with Infinity Flex Display, to which its newly-developed Hinge system was applied to enable the gadget to be used for about six years when a user folds and unfolds the phone a hundred times a day.

When unfolded, a user can operate three apps at one time, for example watching a movie, browsing the web and sending text messages at the same time.

The Galaxy Fold will hit South Korean stores in mid-May as a model running on the 5G wireless networks.