Question
User Analytics - measuring opens via mobile device
I'm looking to identify the opens via (any) mobile device so I can define a ratio of opens via mobile vs. overall opens.
Can you tell me if by adding the "Is Mobile Device" will capture all opens via a mobile device or do I need to drill down further?

I ran across this article:
https://nation.marketo.com/message/125207#comment-125207
Thank you.