As expected, the Samsung Galaxy S4 has become an extremely popular smartphone during its short time on the market. The phone has been hitting the headlines after selling more than 10 million units after less than a month of availability, smashing sales figures achieved by its record breaking Galaxy S3 predecessor. The Galaxy S4 is fully expected to be the most popular smartphone model of the year, with Samsung forecasting 80 million sales of the handset throughout 2013.

While the Galaxy S4 is tipped to be the most popular device of the year, but it appears that it has so far failed to knock the Apple iPhone 5 off the top spot in the UK. Phones Review has reported that the iPhone 5 remains in number one position, according to the mobile tracker tool over at uSwitch which compiles a top 10 list of the best selling smartphone models based on sales data from UK networks and retailers on a monthly basis. May was the first full month that the Galaxy S4 has been available, but it has only managed to achieve third position on the list. Compare the iPhone 5 and GalaxyS4 here.

Because the data is recalculated every month, it is more than likely that the Galaxy S4 will climb to the top spot at some point later this year. The iPhone 5 is currently in first place, and is joined by its 16 GB iPhone 4S and 8 GB iPhone 4 counterparts in second and fourth places respectively. With the Galaxy S4 in third position, other Samsung phones which feature in the top ten include the Galaxy S3 in fifth place, Galaxy Ace at number eight, Galaxy S2 in ninth position, and Galaxy S3 Mini taking the number two spot. Cheapest iPhone5 offers.

At the end of June, the data will be recalculated so there is every chance that the Galaxy S4 will have outsold the iPhone 5. We will be sure to report back at the end of the month with the latest updates.