In another galaxy? Samsung S4 hits 20m mark

The South Korean press has reported that sales of Samsung's Galaxy S4 has exceeded the 20 million mark - but should Apple be wary?

Following its release over three months ago, the flagship smartphone appears to be flying off the shelves, after surpassing 10 million units by May.

Citing Samsung mobile head J.K. Shin as the source of the news, numerous reports from the country say the device looks set to be the company's fastest selling smartphone.

"The S4 Galaxy at least 20 million, as many as 25 million shall be deemed to have gone," said a sketchy report in South Korea.

At one point the S4 was 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.

If Samsung has smashed the 20 million mark it would go a long way to appeasing some investor unrest that sales of the smartphone are slowing.

Apple has so far shifted 37.5 million iPhones in its most recent quarter - without giving away which exact model sold the most.

Is the Samsung Galaxy S4 as popular as first thought? Tell us your thoughts below