Calories left, and monitoring through-out the day. Older Fitbit vs Newer Garmin.
I'm an oldbie coming back as a newbie. 5 or 6 years ago I had a basic fitbit activity tracker. I teamed it up with MFP and my favourite feature was seeing what "calories left" I had for the day. What was really nifty was the fitbit monitored my HR 24x7, and seemed to adjust as the day went on. So it didn't just take into…