Ran twice this year with my 735XT over a thermal shirt and then a light jacket, so 2 pieces of clothing, and it recorded my HR fairly accurately, matching roughly with similar runs on the same course. Once during an 11 mile run it worked for the whole run and once for a 5 mile run for 4 miles it worked fine and then the final mile it was off escalating way up. Have not seen anyone post about this before.
LOL, yeah thanks, I have a few HR straps. Just in this case I was running without and didn't care about HR as I was running based on power and noticed I got decent HR results anyway.
I had exactly the same thing happen to me. I simply forgot to turn on my optical HR that I put on my wrist. During the run the heart rate was in the range of 140-160 which seemed ok for the pace and effort. Only after the run I realized that the optical HR was not working and I could not believe that the watch could measure anything over two layers of clothing. My 735XT was pretty snug over my running jacket and I had a think long sleeve under. Given my cadence of 180-185 this does not seem to come from cadence as some people reported in other threads.
It remains a mystery to me...:confused:
The optical heart rate monitor does not work through clothing, the reading you are getting is based off movement and can quite often match your cadence. If you stand still it will report --, but as soon as you move it will guestimate a value based on the data it receives.
The optical heart rate monitor does not work through clothing, the reading you are getting is based off movement and can quite often match your cadence. If you stand still it will report --, but as soon as you move it will guestimate a value based on the data it receives.
Sorry, but you are wrong, it absolutely does work through clothing. I just tested side by side against HR strap and over a shirt at my desk, not moving, then walking and running briefly. It matched very closely on this short test and as I mentioned earlier I have 2 runs where I can can also show it does not match cadence, and is a close match to similar runs.
Is it reliable, I would agree no it is not and I had a failure using it like this on a recent run. I would never use it like this on a run where I cared about the HR data, it is just more of a curiosity for me that it does work.
Bringing a dead thread back to life but... I wore my 935 over a ski jacket and got believeablle HR while skiing, quite perplexed also Check out my resort skiing or snowboarding activity on Garmin Connect. #beatyesterday https://connect.garmin.com/modern/activity/2521533817
Ran twice this year with my 735XT over a thermal shirt and then a light jacket, so 2 pieces of clothing, and it recorded my HR fairly accurately, matching roughly with similar khaadifabrics runs on the same course. Once during an 11 mile run it worked for the whole run and once for a 5 mile run for 4 miles it worked fine and then the final mile it was off escalating way up. Have not seen anyone post about this before.
I have also tried it but not successful, what can we do for it.
