Fenix 5X + Edge 520 / Advanced metrics

Hi,

Is there a way to use the 5X for activity tracking and running and the Edge 520 for cycling and have them "share" the information?
Like adjusting the recovery time, VO2 max, training status, etc. ?

Is there anything that can be done or I have to use both while cycling and then delete the results of one of them?

The workaround I have seen is to use both, but have the 520 syncing to a different account. No deletion required.

There's a lengthy discussion on it here.

If you do go down the route of recording everything on both, when you are asked to save at the end of the activity on the Edge you could say no, although mcalista's suggestion provides a backup of the cycling data if anything should go wrong.

There is a slight asymmetry with this as you won't have a corresponding backup of your running data, but then maybe there is no need for a backup anyway. I don't think I've ever lost any significant amount of activity data with any Garmin device.