Samsung Galaxy S4 smashes 20 million units sold milestone

Flying in the face of speculation that its new flagship smartphone, the Galaxy S4, was off to a slow start, Samsung may in fact have already surpassed the 20 million sales mark with the device.

The Korean electronics giant has yet to officially confirm the figure, but multiple sources are quoting top Samsung executives - including head of mobile JK Shin - as backing up the reports.

Just over a month ago, Samsung announced that the Galaxy S4 had hit the 10 million unit milestone and, assuming the new reports are accurate, it would make the Galaxy S4 the fastest-selling Android smartphone in history.

However, the device has failed to surpass early sales of Apple's two most recent handsets, the iPhone 5 and iPhone 4S - estimates have the iPhone 5 shipping some 34 million units in just 100 days.

Nevertheless, the impressive retail performance rebuffs speculation that the Galaxy S4 was struggling to make its mark on the smartphone market - recent rumours had suggested that Samsung had scaled back production of the device by up to 15 per cent in June.

"From conversations we had with some of the key suppliers of the Samsung Galaxy S4, we remain convinced that the production is in line with their original schedule, and well on track to reach our target of 22 million in the second quarter," commented Mark Newman, senior analyst at Sanford Bernstein in Hong Kong.

He added: "While it is true that production will begin to slow starting in July, this is only following the natural life cycle of flagship smartphone products and the GS4 has already been in production for several months."

More will no doubt be revealed when Samsung pulls the cloak on its latest quarterly report on 6 July.

Samsung unveiled the Galaxy S4 back in March at New York's iconic Radio City Music Hall.