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HRM Pro FW 8.80 (or Plus) for improving distance and pace related problems for outside running on the F6?

zoeschghons
over 3 years ago


Did someone already use one of those HR-Monitors (with pace/distance option on) and can share some experience? The review from Ray DC looks very promising and I am tempted to get one.

Thanks in advance

  • 0 over 3 years ago

    I am sceptical that anything that relies on GPS for calibration is going to give better results than GPS itself.

    Having said that, being a huge geek and loving trying this stuff, on my next run, I'll run with native GPS pace and distance, HRM Pro pace and distance and Stryd Pace and Distance and see how it pans out.

    I'm very sceptical a chest mounted belt which is going to be using a combination of average stride length x cadence is likely is going to be better than GPS for distance...pace maybe you might see a gain???

  • 0 over 3 years ago in reply to 5135968

    So,,,drum roll here are the results after a measured 5k run. First 1 1/2 miles were at an easy 8:30 /mi pace, then I held 7:30/mi for a mile, moving to 6:30/mi. When speed was around 8:30/mi distances matches closely, but as I speeded up, the footpods (Stryd and HRM Pro) started loosing distance

    4 watches - two used GPS - the Fenix 7 and Fenix 6 Sapphire

    the black Fenix 6 Pro used the HRM Pro for pace / distamce

    The Forerunner 255 used Stryd for pace and distande

    Results: (two pics as the post run summary pages never were always in sync)

    Final Measurement

    F7 - 3.13 miles (+30 meters over actual)

    F6 Sapphire 3.12 miles (+15 meters over actual)

    Forerunner 255 with Sryd - 3.05 miles (-96 meters under actual)

    F6 Pro using HRM Pro 2 2.99 miles (-193 meters under actual).

    The most accurate watch for distance was the F6 Pro Sapphire, followed very closely by the Fenix 7. Worse results by quite a way using HRM Pro, followed by Stryd- obviously if the distance is too short, it means the pace is also wrong....

    Note: Generally I do not have an issue with GPS accuracy, so your mileage may vary

    Note2: Stryd is generally quite accurate when using a calibration factor -  for this test I chose not to calibrate so everything was as fair as I could make it. 

  • 0 over 3 years ago in reply to 5135968

    great test thanks a lot for sharing PrayPrayPray

  • 0 over 3 years ago in reply to 5135968

    Thanks for your work!

    My old Stryd , after calibration on *specific* shoes, gives accuracy AND repeatingness of about +/- 30m in 10k (3‰)

  • 0 over 3 years ago in reply to ge0kas

    Mine is accurate to 2% close enough (varies with pace) and shoes can also add another 1% difference too, so 3% sounds about right.

    I think for Stryd and probably the HRM Pro its better to take distance from GPS, and Pace from the footpod.

    I think the HRM Pro is mostly intended for indoor runners.

  • 0 over 2 years ago in reply to 5135968

    Do you remember what GPS settings you used?  FR255 doesn't use All+multi-band by default, for instance, but I guess it was getting distance from Stryd anyway?

  • 0 over 2 years ago in reply to 5135968

    Just to clarify, 30m out of 10km is 3‰ (or 0.3%)

    Stryd is crazy accurate (if calibrated correctly).

    But most of all we care for consistency, not accuracy...