The Nokia Lumia 900 is outselling HTC’s flagship smartphone the One X, new figures reveal.

Sales of the Windows Phone Mango-toting handset surpassed that of the quad-core One X, catapulting it to second place in the smartphone rat race, behind the iPhone 4S, gadget news website ITPortal reports.

The studies were compiled by Raymond James analyst Travis McCourt in conjunction with Pierre Ferragu of Bernstein Research, and were based on sales data taken from 15 AT&T stores in the US and 15 separate UK retailers.  

It claims that the 900 is selling “reasonably well” in the States and isn’t showing any signs of slowing down.

But the handset still lags behind the more powerful iPhone 4S.

The news comes as Nokia prepares to defend itself against a lawsuit filed by some of its shareholders, who claim the Finnish firm misled them into believing the adoption of Windows Phone will reverse the company’s decline in the smartphone sector.

However, Ferragu believes the Lumia 900’s overwhelming success will be short-lived, saying: "Consumer interest in Nokia's flagship peaked at very low levels and is now evaporating in European market...The US remains for now an exception."

Nokia Lumia 900: Specs

The Nokia Lumia 900 is the follow-up to the Lumia 800, the Finnish phone-maker’s flagship Windows Phone handset. Along with a 4.3-inch ClearBlack AMOLED display, the 900 comes loaded with Windows Phone Mango, a 1.4GHz processor and a string of Windows Phone 7 apps exclusive to Nokia smartphones, including Nokia Drive.

Nokia have also thrown in an 8-megapixel rear-mounted camera with 720p HD video recording capabilities and a front-facing snapper, making it ideal for Skype chats.

Link: ITPortal