New AdDuplex data shows the Lumia 625 following the Lumia 520's growth with both Windows Phones taking Europe. Windows Phone is also shown to have had a rather successful Q4 2013.

AdDuplex, one of the largest advertising providers for both Windows and Windows Phone, has released data for the month of January. As is the case with each report we cover, the company has analysed usage from supported apps running the SDK to see how Windows Phone has altered, compared to previous months.

There were reports that Nokia failed to sell as many Lumia Windows Phones in Q4 2013 as the company did in Q3, but the ad provider recently released data to show that Windows Phone as a platform performed well through the fourth quarter.

Head past the break to see how the platform looks in the first month of 2014, including some new, unannounced hardware.

Windows Phone 8 through Q4 2013

Microsoft maintains the stance that the company sold twice as many Windows Phones through the holiday season just passed, compared to 2012. If we look at how the OS versions chart compares against the one released in the December report, there's actually no difference at all – both figures are exactly the same. Does this mean that Windows Phone 8 completely flopped over the last 30 days? Not at all. 

For its previous report, AdDuplex collected data on December 27th – just days after Christmas as many new people presumably fired up new smartphones received as gifts. There was considerable growth for Windows Phone 8 last month against its predecessor, leading us to believe that this month we could well be looking at a return to normal levels of growth, now consumers have ceased the frantic download of apps from the store.

Let's also not ignore the fact Samsung too had a slight downer over the festive holidays with a decrease in revenue (due to high expenditures in marketing). Windows Phone 8 has had three updates since its release. Here's how the situation looks when Windows Phone 8 is broken down by those subsequent releases:

Less than 15 percent of Windows Phone 8 consumers have upgraded to Update 3. In fact, 18 percent of Windows Phone 8 handsets are still running Update 1, while Update 2 was detected on 67 percent of Windows Phones in the data sample. We strongly urge consumers to keep checking their Windows Phones to ensure they're running the latest version of Windows Phone – head to Settings, then hit "phone update" and check for updates.

T-Mobile growing in the US

On a rather miscellaneous note, the US telecom T-Mobile with its aggressive 'Un-carrier' marketing appears to be experiencing some substantial growth on the Windows Phone platform. The network is just behind AT&T on 25 percent, while Verizon Wireless sits in third on 21 percent. It'll be interesting to see how this alters once the Lumia Icon has been released to the general public on Verizon.

T-Mobile only stocks the Lumia 521 and Lumia 925--both top phones in their class--so it looks to be paying off for them, hitting the budget and high end range for consumers.

Nokia Lumia 520 taking over Europe

Just like in other markets, the Lumia 520 is surging ahead, but in the UK the affordable Windows Phone has gained 10 percent in just 2 months. The Lumia 625 is now situated in the fourth position, behind the HTC 8S and Lumia 800. While we're pleased to see the Lumia 1020 enter the top ten, the Lumia 800 is still in second place, showing just how strong that particular handset was in the UK.

Joining the UK is France, where the Lumia 520 has crossed the 40 percent marker. Not only that, but the Lumia 625 is currently in second position, just shy of 10 percent. Then you have the Samsung ATIV S just behind the two Nokia Windows Phones, making France an interesting market to contrast.

Germany holds the premium Lumia 920 Windows Phone as its number one device running Microsoft's OS. The Lumia 520 has gained more than 6 percent of the market in just two months, closing the gap between itself and the high-end sibling. Again, much like France, the Samsung ATIV S is again doing well and to top everything off the Lumia 1020 has entered the top 10.

Italy has always been a difficult market to convert from Windows Phone 7 to Windows Phone 8, but those days are beginning to be assigned to the dustbin of history. The Lumia 520 is in first with 30 percent, followed by two Windows Phone 8 handsets, showing consumers are indeed upgrading to newer hardware.

Unannounced devices?

Samsung SM-W750V – we covered this device earlier this month, but AdDuplex has some more details to add. There's some bad news as the company has only seen the device on Verizon thus far, but the good news is that it's definitely not a Verizon variant of the ATIV S. What's interesting is the resolution is 1920x1080, but the screen size is just 4.3-inches, according to collected data. This could well be inaccurate i.e. an emulator of some sort, but we'll hopefully have concrete details at a later date. This 1080p device would join the Lumia Icon aka Lumia 929 as forthcoming devices.

Nokia RM-997 –​​ another phone that has been spotted several times in the past. Running Windows Phone 8.0, this device has a 4-inch WVGA 800x480 screen and has been seen almost exclusively in China. 

This AdDuplex report is based on data collected from 2,899 Windows Phones running the AdDuplex SDK version 2. While this report is by no means 100 percent accurate, it's a solid look at the Windows Phone platform. Data was collected over the day of January 23rd of this year.