Is there a flag for "Activity Tracking" enabled somewhere in the API?
I'd like to check device settings and see if Activity Tracking is on/off in order to show/hide activity tracking on a watch face.
And there might not be a way to even turn it off. "deleting" the widget might just mean that it doesn't show as you move through the widgets, but it still runs. IIRC, only on the 920 when you "delete" the widget does it stop activity tracking.
This is something that has been reported in the past, and it's on the road map to be included in a future Connect IQ release. Like jim_m_58 mentioned, there are some complications we'll need to address since each device potentially handles the ability to enable/disable activity tracking differently.