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    Suunto 9 Peak HR is SUPER Inaccurate

    Scheduled Pinned Locked Moved Suunto 9 Peak
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    • cs2ndC Offline
      cs2nd @DMytro
      last edited by

      @dmytro you are 100% right. I personally religiously use my Polar H10. The issue still remains though, there seems to be a lag/delay with what the SP9 displays. Otherwise, yes, I trust my Polar H10 readings.

      Suunto Race Ti
      Suunto 9 Peak Ti

      DMytroD 1 Reply Last reply Reply Quote 0
      • 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…

                          1 Reply Last reply Reply Quote 0
                          • 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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