I just did a medical indoor cycling performance test wearing a Polar H10 chest band connected to my physician's medical equipment. I also tracked the session as a cardio workout with my Venu SQ2 which I bought 3 weeks ago. I wear my Garmin 24/7 and wore my Garmin as I always do during workouts, fairly tight around the wrist and well below the wrist bone, as suggested by Garmin. I made sure the hear rate sensor was clean and as it was a light test I did not sweat.
My actual heart rate curve according to the medical equipment was flat during the entire 10 minute test at around 78-80. However my Garmin was all over the place measuring peaks varying between 116-168, more than double my actual heart rate. It never got below 116, so at best around 35 bpm too high.
I was expecting a slight deviation, but not this much.
Is this normal behavior, because that makes the watch pretty useless for this type of use case? Or is it a faulty hardware issue?
Any help/suggestions is highly appreciated.
