Originally Posted by
prj71
You're entitled to your own opinion but you aren't entitled to your own facts.
My wrist mounted sensor (Garmin Forerunner) has no dropouts or loss of signal. I just rode 101 miles this past Saturday and my wrist mounted device worked perfectly for the entire ride. It Broadcasts my heart rate to my Garmin Edge 530 perfectly the entire ride.
Facts do not care about entitlement. Facts are facts, and they are stubborn.
The facts I reported: my wrist-mounted GARMIN sensor worked poorly on the bike, my upper arm-mounted Polar sensor works well on the bike.
I am not the only person to report the same facts.
prj71 reports the ability to use a wrist-mounted sensor without problems. That experience is not universal.
Anecdotes are valuable, but controlled studies are better. Studies report that the accuracy of a wrist sensor drops as the exercise becomes more vigorous. This is not surprising, as it’s plainly clear that an optical sensor can’t do a good job in the presence of vibration.