Microsoft's Lumia 640 and Lumia 640 XL Windows Phone are arguably their best budget-minded Lumias to date. Since their announcement, there has been strong interest from users and positive reviews from many publications. Now, new July data from AdDuplex finally lets us see the impact of these phones on a few markets, specifically the U.S., Russia, and India. The AdDuplex data is collected monthly from advertising data on the Windows Phone platform.

United States - Lumia 640 off to a good start? The Lumia 640 went on sale only a few months ago in the States on various carriers, including Cricket. Since that time, it has managed to grab 5.6 percent of the Windows Phone market and to become the fourth most prevalent Windows Phone. It is now tied with the Lumia 520. Best VPN providers 2020: Learn about ExpressVPN, NordVPN & more The Lumia 635 is still doing very well too with a staggering 32.5 percent of the Windows Phone pie, and it is closer to 40 percent when you toss in the Lumia 630. No word on AT&T's massive Lumia 640 XL, which only went on sale in the last few weeks. Of course, with a contracting Windows Phone market in the US these numbers only show that users are replacing their older phones. It is not clear (even unlikely) that Microsoft is adding any new customers to the mix.

Russia - 'White label' phones doing well Over in Russia things are not too different with the Lumia 640 picking up 3.4 percent of the Windows Phone market there. Additionally, the Lumia 535 has jumped by 1.7 percent for an 8.1 percent total slice. Overall, Russia has a ver mixed market with the Lumia 630 owning 16.2 percent of the Windows Phone pie and the Lumia 520 picking up the next biggest chunk. Interestingly, "Other" accounts for nearly 40 percent signaling that white-label phones are doing some considerable business there.