Samsung Galaxy S3, rumored to be the next flagship smartphone from the South Korean electronics giant, can be the thinnest smartphone in the world.

According to a report from OLED-display.net, the Samsung Galaxy S3 will be just 7mm thick. It is reported that Samsung has worked out how to make the printed circuit boards and other internal details up to 20 percent thinner than the previous versions.

The current Samsung Galaxy S2 measures less than 9mm thick at its thinnest point. The S2's biggest rival, iPhone 4S, measures 9.3mm. Currently, the thinnest smart phone in the world is the Motorola RAZR at 7.1mm.

At the Mobile World Congress, which will take place in Barcelona, Spain from Febr. 27 through March 1, it is expected that there will be several thin smartphones which will be unveiled.

Samsung Galaxy S3 has already generated much interest among smartphone enthusiasts. Rumors are rife that the upcoming Galaxy smartphone will feature a 4.6-inch HD 1280 x 720 pixels Super AMOLED Plus capacitive TouchWiz screen, with 319 ppi pixel density. The device is also expected to feature Corning Gorilla Glass, used in the current Galaxy S2.

The device is rumored to feature a 12 megapixel 4000x3000 pixels, LED flash camera with 1080p video capture, coupled with an additional 2 megapixel front-facing camera for video chats. Expected to run on the Ice Cream Sandwich OS, the smartphone is likely to have 4G LTE support.