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    Suunto 9 Peak HR is SUPER Inaccurate

    Scheduled Pinned Locked Moved Suunto 9 Peak
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    • DMytroD Offline
      DMytro @cs2nd
      last edited by

      @cs2nd how bit of a delay are you experiencing? And how do you know that it’s a lag in the first place?
      For example, if I climb a hill, my HR doesn’t elevate for the first few seconds either, but I am quite confident that it’s due to physiological reasons and not just a signal delay.

      1 Reply Last reply Reply Quote 1
      • Brad_OlwinB Offline
        Brad_Olwin Moderator @Grayson Bangay
        last edited by

        @grayson-bangay I don’t care which one you have, Garmin, Suunto, Polar, Coros, TomTom, Apple, etc. The optical HR is just not that good. If you want accuracy use a belt.

        https://pubmed.ncbi.nlm.nih.gov/28538708/

        Vector/T6c/Ambit 3 Peak/S5 Copper/S3/S7 Ti/S9 baro Ti/S9P Ti/S9PP Ti/Vertical Ti/Race Ti/RaceS/Ocean/Wing

        jR0n6J 1 Reply Last reply Reply Quote 2
        • SimonS Offline
          Simon Bronze Member
          last edited by

          Optical heart rate sensors always have a lag of about 4-5 sec. Not sure, but I believe this is currently a general technical limit for all manufacturers.

          As for accuracy: You can place the watch much higher up, where your arm is thicker. Or you can use an OHR arm sensor like the Wahoo Tickr Fit. It’s almost/comparable accurate to a chest band sensor, but less annoying. But it also has the 4-5 sec lag. It’s what I’m using and I’m really happy with it.

          Cheers

          S9P Ti - ex Altimax, A3P, SV Ti

          1 Reply Last reply Reply Quote 0
          • jR0n6J Offline
            jR0n6 @Brad_Olwin
            last edited by jR0n6

            @brad_olwin the link is 2017 which in tech world is like 10 years 🙂

            If u looking for HR accuracy on wrist Apple Watch 6+ is very close to a chest strap… in my testing overall for a 2 Hour activity my difference to a Polar H9 was 2-3 beats (vs measures min / max)… the only issue is a lag up to 2 seconds…

            This depends of course on your fit, skin etc…in case u require a scientific test u can refer to:
            https://youtu.be/0Ub7qmZz9ec

            P.S. Peak 9 is btw not bad at all for HR (for activities where the watch is not moving a lot…)

            P.S.2.0 the best alternative if u don’t want to wear a chest strap… Polar Verity Sense, Polar OH1, or the mentioned Wahoo 🙂 in that order…

            S9P Moss Grey
            SA beta on iOS

            Brad_OlwinB SimonS 2 Replies Last reply Reply Quote 0
            • Brad_OlwinB Offline
              Brad_Olwin Moderator @jR0n6
              last edited by

              @jr0n6 I’ve tested all of the Suunto OHR models as well as Apple Watch 5 and 6. They are about equal for what I do. The Suunto 7 and Apple watches are a tie for me. And IMHO the best belt is the Suunto Smartsensor as missed HR and HR during swimming is synced bac to the watch. The belt can be worn 2-3h without the watch and sync back HR for exercises where one does not want to wear the watch.

              Vector/T6c/Ambit 3 Peak/S5 Copper/S3/S7 Ti/S9 baro Ti/S9P Ti/S9PP Ti/Vertical Ti/Race Ti/RaceS/Ocean/Wing

              jR0n6J 1 Reply Last reply Reply Quote 1
              • jR0n6J Offline
                jR0n6 @Brad_Olwin
                last edited by

                @brad_olwin swimming is the only thing I did not try yet 🙂 … for me the sensor of the Apple Watch is better but that 1,5 day battery life a no go… and was looking a long time for a watch that I like and the HR sensor is acceptable. S9P at least for me delivers this…

                S9P Moss Grey
                SA beta on iOS

                1 Reply Last reply Reply Quote 0
                • SimonS Offline
                  Simon Bronze Member @jR0n6
                  last edited by Simon

                  @jr0n6 Tried the Polar Verity Sense. It’s awesome 🙌 Indeed better accuracy and more reliable than the Wahoo. Although the Wahoo is not bad by any means! And it has a longer lasting battery (20 h vs 30 h). Still, for the improved accuracy, I’ve switched to the Polar Verity Sense. Thanks for the hint!

                  S9P Ti - ex Altimax, A3P, SV Ti

                  1 Reply Last reply Reply Quote 0
                  • ? Offline
                    A Former User @Grayson Bangay
                    last edited by A Former User

                    Today first run with my new S9P (all black) via OHR.
                    I had the idea to test it with my old S9B with my smart sensor.
                    Holy shit is S9P accurate. I had nearly always nearly same values.
                    The average HR was exactly the same.
                    No drops or unplausible high values on S9P…
                    Amazing! Great job Suunto!!!

                    It was a steady run. Of course I would expect some difference in generell with every OHR device in compare to HR belt with fast sprints, unsteady sports…

                    I liked also the avg km pace of S9P.
                    Didn’t have so much jumps in the beginning of each km.

                    S9P all the way…

                    Dimitrios KanellopoulosD 1 Reply Last reply Reply Quote 4
                    • Dimitrios KanellopoulosD Offline
                      Dimitrios Kanellopoulos Community Manager @Guest
                      last edited by

                      @mountainchris keep in mind that during cold days of winter ohr has flaws due to its nature.

                      Summer is super accurate

                      Community Manager / Admin @Suunto
                      Creator of Quantified-Self.io
                      youtube.com/c/dimitrioskanellopoulos
                      https://instagram.com/dimitrioskanellopoulos
                      https://www.strava.com/athletes/7586105

                      ? 1 Reply Last reply Reply Quote 0
                      • ? Offline
                        A Former User @Dimitrios Kanellopoulos
                        last edited by A Former User

                        @dimitrios-kanellopoulos it was 5 degrees. super good! in cold winter I will still use smart sensor. One indicator for me to use OHR is never have cold hands…

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                        • surfboomerangS Offline
                          surfboomerang
                          last edited by surfboomerang

                          As @Dimitrios-Kanellopoulos says…
                          Below a certain temperature OHR can become very unreliable but in warmer weather it works perfectly. Just use a strap in the winter for best results.

                          Warm weather
                          Screenshot_20220205-120559_Suunto.jpg

                          Cold weather
                          Screenshot_20220205-120644_Suunto.jpg

                          Suunto Vertical Titanium Solar
                          OnePlus Nord 4

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