I tested the MS Windows 10 to 7-year-old PC, MS Windows 10 mobile on Nokia Lumia 820. I am in everyday life and at work using many of Microsoft's mobile platform products (onedrive, OneNote, office, office and other lens). I would like to use the Continuum. It is difficult to make a choice. Both phones are excellent. My desire - Microsoft Lumia 950 XL black - a bigger screen with Corning Gorilla Glass protection 4 and higher battery working life.