Fenix 6 Series - 11.75 Public Beta

still the OHR is useless for me. Up to 50 bpm difference

mrscientist said:

And, not to comment-crap, but technically, you can get respiration without a "HR strap". I use a Polar OH-1 optical sensor (which, the more I think about it may actually count as a "strap") and respiration works with that, and my data with it seems to make sense.

I tried to choose my words carefully and not to say "*chest* strap".

I don't know what data Garmin uses to determine respiration, but I assume it is HRV, and a heavy watch bumping about on the wrist is probably not accurate enough. Heck, if WHR is imperfect at best then I think it is more of a reach to expect sensible WHRV data under the stress of exercise.

On a more stable body part (forearm/upper arm) with less weight to the measuring service I imagine the data quality would improve.

That's promising they can get to the end of that bit as well. My Wife has tachycardia and uses hers for a health device. She says for her the only problem so far is if she takes the watch off (to charge) it takes a little longer to lock back on to her.... Promising though!

Thanks

I have "struggeled" with GPS accuracy with regard to track-distance since I bought the F6Pro in december 2019, and I have tested all GPS-versions, all betas.

It is not accurate in difficult conditions, i.e. trail-running in my deep forest on "my" route, very high trees.

With the GPS 4.60 there is no improvment at all. It still shows 9.67km on my 10.00 km trailrun-track. It have always done that, and I suspect it will always do, until F7 (with the new Sony-chip which when released in 2021 will consume 50% more battery if it is set on very high accuracy).

With GPS 4.60 in open landscape it still is excellent on track distance, and have always been, since december 2019.

Having bluetooth issues when listening to music on my runs after updating to this beta, (turns on and off at random) also cant adjust the volume, any of you fine people know a fix for this?

You can only measure heart rate variation (HRV) if you can measure the electrical signal from the heart and identify the R-R interval, hence why a chest strap is going to be the most accurate method. Using optical heart rate the watch/armband is trying to detect the peak in what is effectively a sinusoidal colour change under the skin caused by each pulse of blood; this is pulse wave variation (PWV). The terms are used interchangeably by many but in reality are two very different things. One is a direct measurement of electrical activity (HRV) the other an estimate of the electrical activity derived from the interpretation of a colour change (PWV). it makes sense for GARMIN to stop trying to detect respiration and stress and pulse ox during exercise due to the difficulty in detecting the peak-to-peak variation in pulse rate as the watch is moving around considerably more, amongst other things. This is essentially the same reason why you need to be still to measure pulse ox and stress.

During non-activity periods and of course during sleep, it is easier to estimate respiration and stress from PWV using optical sensing.

Yes. Use the 6x pro version