This week, Microsoft has finally officially launched the new operating system Windows 10 Mobile . But will be able to upgrade only 50% of all existing WP-smartphones.
Analysts AdDuplex, taking into account the number of active users each model WP-smartphones have come to the conclusion that about 50% of all smartphones based on Windows Phone, used to date, will not receive an upgrade to Windows 10. In AdDuplex data, the Lumia 520 is the most used model of the family Lumia WP-smartphones. Its share currently stands at 12.9%. Further, with a share of 11.7% Lumia 535. But Lumia 640 showed the highest growth during the month, gaining one percentage point and took 6.3% of the segment WP-smartphones.
It is worth noting that the original Microsoft promised that all Lumia smartphones will be able to upgrade to Windows 10. But then the company changed its decision, taking into account the opinion of users using mobile Windows 10.