Mainstream Microsoft. The new Lumia 650 from Microsoft wants to convince users with a competitive pricing and obviously the Windows operating system. The manufacturer from Redmond targets business customers in particular. Because of the slow hardware, however, there are some limitations, including the lack of the Windows Continuum feature.
http://www.notebookcheck.net/Microsoft-Lumia-650-Smartphone-Review.165363.0.html
As for "This means the Lumia 650 is not the perfect choice for frequent travelers."
There is also Dual SIM version of 650 for the same price. It has more connectivity options than the single SIM version https://www.microsoft.com/en/mobile/phone/lumia650-dual-sim/specifications/
Lumia 650 has PWM - please check again