New data from AdDuplex has shed some light on the current and future state of Windows 10 Mobile amongst current owners of Windows Phone hardware. Also, new data sheds light on the Lumia 640's growth, and we compare upgrade-distribution rates between Windows Phone, iOS, and Android. Who gets Windows 10 Mobile?

The March numbers reveal that 15.2 percent of all existing Windows Phone that are capable of running Windows 10 Mobile already are on the OS. Another 35.2 percent are capable of upgrading to the new mobile OS launched this month, at least, in theory assuming little carrier interference and regional delays. That brings the total number of Windows 10 Mobile devices - in theory - up to 50.4 percent of active phones. Doing math leaves 49.6 percent of all Windows Phones in use as not being capable of running Windows 10 Mobile. Many of those phones are ones with 512MB of RAM or older Qualcomm S4 chipsets, which, according to Microsoft were cut from upgrade eligibility due to negative Insider feedback. Best VPN providers 2020: Learn about ExpressVPN, NordVPN & more See the full list of eligible Windows 10 Mobile devices here. Microsoft has said there is no 'wave 2' of device upgrades coming, however, there is some reconsideration for phones like the Verizon Lumia Icon, which has a dedicated following. HTC is passing on upgrading the One M8 to Windows 10 Mobile due to a small install base and the costs of paying carriers to test the update (versus any return benefit). Perhaps that is of no surprise as the company is struggling financially amongst fierce competition in the Android space. Good or bad?

Is that 50 percent number for Windows 10 Mobile upgrades good or bad? Considering that the update is not hitting all of those devices just yet and things like carriers, regional availability, OEM support, and more come into play, the number is likely lower. Looking at current Android stats and just 2.3 percent of their install base is on Android 6.0 (Marshmallow) with 36 percent on Android 5.0/5.1 aka Lollipop (which was released in late 2014). Around 34 percent of Android users are still on KitKat, which came out in early 2013, but mostly in 2014. You can see what our sister site, Android Central, thinks about the Windows 10 Mobile upgrade by reading 'Microsoft can teach Android makers a thing or two about updates'. Apple, on the other hand, has a more elegant story to tell with 79 percent{.nofollow} of all active iPhones and iPads on iOS 9 as of this month. Once again, Windows Phone falls in between Apple, who always sets the bar and Android, who tends to lower it. However, none of that will make your pleased if your phone is in the ineligible bunch for Windows 10 Mobile. Windows 10 Mobile share is up again