January’s AdDuplex report does little to bolster the position of Microsoft’s Windows Phone. The report reveals changes within the Windows Phone ecosystem as opposed to comparing it to Android and iOS sales. In turn, it shows some interesting bits about OS version growth and which Windows Phones sell the best and where.

Windows 10 on 10%

Windows 10 Mobile continues to take a slice of the Windows Phone OS pie with 9.5 percent for the month of January. That is an increase of 0.7 percent from last month, but as AdDuplex notes that number is likely driven more from new hardware adoption (e.g. Lumia 550, 950, and 950 XL) rather than new Insiders. The latter group may have finally peaked with late adopters now waiting for official updates rather than jumping into the risky tester pool.

Windows Phone 8.1 still dominates at 77.7 percent, but Windows 10 Mobile is on more devices than Windows Phone 8.0 at just 8.4 percent.

Lumia 520 is still king