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OHR Vs. Strap difference

Former Member
Former Member over 4 years ago

I got curious after seeing some people complaining about differences between OHR and strap HR readings so I did a wee experiment.

From another thread in the F6 forums and using a data field I found on the ConnectIQ store I put on my strap, configured the data field and got these results (see photo). My results where also very similar while in activity (+/- 4 bpm )but as I don't carry my phone with me no photo so you'll have to take my word for it.

Try this yourself and post a photo of the results. Please show how you wear the watch as well.


Download and install the datafield from here (F6 only!): https://apps.garmin.com/en-US/apps/a9734c04-fb8a-49b9-89e1-9ac16a9a6f5e

Instructions to use:

  1. Download and install the datafield.
  2. Turn off the HR strap within your F6
  3. Configure the datafield (1 field only) for your chosen sport.
  4. Go into an activity (you do not need to start the activity) and the datafield will automagically connect to your HR strap.
  5. Scroll to the datafield, take a photo and post it here.

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  • +1 over 4 years ago

    The OHR works perfectly during an activity. The problem that many have, is that the heart rate works absolutely unacceptable without started activity. The same problem exists when the heart rate is sent to a device.
    This app cannot be used for the actual problem.

  • 0 over 4 years ago in reply to Hier
    Hier said:
    The OHR works perfectly during an activity.

    No, the OHR does not work perfectly during activity for all users and all activites. Reading this forum makes that perfectly clear.

    Hier said:
    This app cannot be used for the actual problem.

    This post was specifically about differences between OHR/chest strap. Not about OHR outside an activity. There are other threads for that.

  • 0 over 4 years ago

    As others have mentioned, the difference is negligible when resting but becomes an issue when my heart rate is above 100bpm - the OHR just doesn’t seem to like recording higher values!

  • Former Member
    0 Former Member over 4 years ago in reply to BenBristol

    ...higher values came with sweating, bumping, vibrations, the watch moving on the wrist...to be taken into account.

  • 0 over 4 years ago

    Just wanted to say..  I use the Polar OH1 with my 6s.  I use this when running.  After completing the run, I then walk home as a cool down.  When I stop the run activity (using the OH1 as the HR source) it typically says around 130 - 125bpm at that point as I am starting to "cool down".  The second I switch back to the watch face / or look at the HR built in widget, it then turns back on the watch built in HR sensor and gives a reading that is very low.... at first.   (maybe 107, or 87 or something way under the real 130ish.).   BUT..  as I keep walking and wait.. and watch, the HR builds in about a min or two and then levels out to be accurate.

    So time is a factor.  Apparently it just takes a little time to "catch up".  Either way, it works.. just differently and not as quick as the other HR straps etc.

  • 0 over 4 years ago

    checked WHR vs ANT+ Strap on my Garmin 6X Sapphire (Firmware 8.73 - Sensor 5.06 - GPS 4.1 - ANT 5.01)  

    Jogging: almost equal data (tested 4 times)

    Hiking: WHR data often much to low (tested two times)

    during hiking especially on slopes the WHR is much too low (50-70 beats lower then strap)

    maybe the differences jogging (WHR reliable) vs hiking (not reliable) is caused by the position of the arms. Runners triangle when jogging (arms up) and arms down when hiking....

  • 0 over 3 years ago

    Thanks for the very cool app first an foremost. I tried it today just quickly with some strength training - it seems like it didn’t record the first 5’ or so… any ideas what went wrong?!