Just tried my first run today with the XM2. The device paired up on the Fenix 5 straight away and I got two new items I could add to the running data screen.
Muscle o2 saturation and Total Hemoglobin. When I was running I saw the percentage constantly changing (creeping slightly up)... while the Hemoglobin number was pretty static.
Now the question. Where is this data hidden in garmin connect ?.. I can't find it in the mobile app or the web site..
Any thoughts ?