The Samsung Galaxy S3 will not be making its debut at Mobile World Congress, contrary to popular belief that the quad-core smartphone would appear in late February.

Samsung confirmed to technology website TechRadar that, while the Korean company will be announcing new handsets at the show, the Galaxy S2's replacement will be announced at a separate media event.

"Samsung is looking forward to introducing and demonstrating exciting new mobile products at Mobile World Congress 2012. The successor to the Galaxy S2 smartphone will be unveiled at a separate Samsung-hosted event in the first half of the year, closer to commercial availability of the product," Samsung is reported by TechRadar as saying.

The flagship Galaxy S2 held its own in the battle between Samsung and the Apple iPhone, and the S3 was widely expected to be announced imminently after a mysterious new smartphone was spotted in a Samsung promotional video.

But now the Galaxy S3 will not be released until later in the year, possibly to coincide with the rumoured July release date of the iPhone 5.

The Galaxy S3 is expected to have a super-powerful quad-core processor, larger screen and a whole host of next-generation features which could include NFC for wireless payments and 4G networking.

Mobile World Congress kicks off in Barcelona on 27 February and runs until 1 March and the International Business Times UK will be providing comprehensive coverage of the event.