There is no denying that Microsoft has embarked on an ambitious, far-reaching roll-out mission with Windows 10 Mobile. Besides the ever-growing list of devices running the OS out-of-the-box, like the Lumia 950, 650 and 550, the US giant has also started releasing updates to an ever-growing range of older devices. However, despite the growing number of devices, AdDuplex now says only 50.4% of all current Windows devices are capable of running Windows 10. This means that developers willing to invest effort into Universal Apps can currently expect 50% market penetration on...
Source: http://www.gsmarena.com/adduplex_numbers_show_about_half_of_current_windows_smartphones_are_capable_of_running_windows_10-news-17411.php