Samsung has confirmed channel sales of its Galaxy S4 smartphone has surpassed 10 million units sold in less than one month after its commercial debut.

Launched globally on April 27, the flagship phone is estimated to be selling at a rate of four units per second, setting a new record for Samsung, generating sales quicker than any of its predecessors.

Sales of the previous model, the Galaxy S3, reached the 10 million mark 50 days after its launch in 2012, while the Galaxy S2 took five months and the Galaxy S seven months to reach the same milestone.

"On behalf of Samsung, I would like to thank the millions of customers around the world who have chosen the Samsung Galaxy S4," says JK Shin, CEO and President of the IT & Mobile Communications Division, Samsung.

"At Samsung we continue to pursue innovation inspired by and for people."

The announcement follows news that Samsung will hold an event in London next month, where the South Korean giant is expected to launch new Android and Windows devices.

Samsung says the Galaxy S4 is available in over 110 countries and will gradually be rolled out to a total of 155 countries in cooperation with 327 partners.