Hi all,
not sure if this is specific to the FR570, but it is the watch I am currently using. Now to preface, it is pretty cold here currently, so that might certainly play a role in what I'm experiencing, still it is quite the inconvenience. The measured wrist heart rate is off by about 20bpm, which leads to wildly inaccurate load estimates. I am comparing it with measurements using my chest strap. I am aware that there are probably just physical limitations to what optical HR measurement at the wrist can achieve during cold (around freezing) temperatures, but still it seems like that could be something that the watch/Garmin connect could take into account and associate some kind of uncertainty with that measurement. As is, my entire training load estimates and therefore training suggestions are unusable because of this measurement error, which leads to load estimates that are probably around 2.5 times what they should be.
Maybe you say nothing can be done about this, anyway I wanted to flag it as a concern.
