I'd just record everything on the forerunner and only take the 810 out if you need turn by turn or nonsense like live segments.
Elevation is the other thing I like from the 810, other than readability. It's definitely not getting used on commutes ever again.
@yoshy started
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I'd just record everything on the forerunner and only take the 810 out if you need turn by turn or nonsense like live segments.