Hi all,
Ran an experiment the last weeks to compare Garmin's overnight HRV and Body Battery measurement vs. Elite HRV, measured first thing in the morning using a Garmin HRM Pro Chest Strap.
Key insights:
- Absolute values are way different: Elite HRV would give me RMSSD of say 55, whereas Garmin gives me a 38.
- Usually Elite HRV with chest strap gives me higher values.
- Trends up and down seem to be not correlated at all.
- Even when I do a Garmin Health Snapshot exactly in parallel to the Elite HRV recording, I get vastly different values between the two
- Multiple such parallel readings in a row don't produce correlating variations (e.g., one may be up vs the previous reading, the other down)
- Training recommendations are often opposite: One would tell me to train hard, the other to take it slow. Only sometimes they agree.
I have a hard time trusting Garmin's readings since it is wrist based, and also had a weird drop in readings a few months ago that may have been related to a software update (much discussed here in the forum).
What to make of this? Should I ignore Garmin, ignore Elite HRV, or scrap all that since it may be all irrelevant? Did anyone else compare between Garmin and a chest HRV measurement?
