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    OHR accuracy of owners of Race 2

    Scheduled Pinned Locked Moved Suunto Race 2
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    • Tomas5T Offline
      Tomas5 Gold Members
      last edited by

      I will get back later after few weeks so people with same problem have some answers. At least for me it looks with Race 2 better than with S5. Not sure if it is accurate but at least no spikes with 200bpm while normal walk etc.

      Walk looked good HR usually between 100-120 which is correct for me.
      On bike it looks good too. I think there was rise of HR while riding down bumpy road while i think my real HR was lower but other than that it was correct. So for now good but this is only after two excercises. Will let you know later.

      Suunto Ambit 2, Suunto 5, Suunto Race 2

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      • VoiGASV Offline
        VoiGAS Silver Members
        last edited by

        Are there signs of cadence lock during downhills? Thats the only situation where the Race S OHR really fails for me


        Race S
        Ambit3 Vertical

        Tomas5T 1 Reply Last reply Reply Quote 0
        • Tomas5T Offline
          Tomas5 Gold Members @VoiGAS
          last edited by

          @VoiGAS i don’t run, i will see while hiking

          Suunto Ambit 2, Suunto 5, Suunto Race 2

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          • Tomas5T Offline
            Tomas5 Gold Members @Tomas5
            last edited by

            Today possibly cadence lock in first half? Not sure but strange change in middle of activity while i walked same speed all the way.IMG_0893.png

            Suunto Ambit 2, Suunto 5, Suunto Race 2

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            • 2 Offline
              2b2bff @Adam.B
              last edited by

              @Adam.B which Garmin are we speaking of?

              Suunto Race S

              Tomas5T 1 Reply Last reply Reply Quote 0
              • Tomas5T Offline
                Tomas5 Gold Members @2b2bff
                last edited by

                Today I did bike ride, almost all it was done on asphalt road. Here is comparison of Suunto 5 (using Suunto Smart Heart Rate Belt), and Suunto Race 2 OHR sensor.

                Screenshot from 2025-09-28 13-25-55.png

                Suunto Ambit 2, Suunto 5, Suunto Race 2

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                • Tomas5T Tomas5 referenced this topic
                • L Offline
                  Luis Andés Olmedo Bronze Member @Tomas5
                  last edited by

                  Yesterday during a long run. Constant pace all the way.
                  Captura 2025-09-28 a las 17.07.20.jpeg.png

                  Jean-Philippe REYJ 1 Reply Last reply Reply Quote 1
                  • Jean-Philippe REYJ Offline
                    Jean-Philippe REY @Luis Andés Olmedo
                    last edited by

                    @Luis-Andés-Olmedo
                    Ok so I am not alone with those crazy high bpm in the beginning of each easy run…

                    sorinusS 1 Reply Last reply Reply Quote 1
                    • sorinusS Online
                      sorinus @Jean-Philippe REY
                      last edited by

                      @Jean-Philippe-REY said in OHR accuracy of owners of Race 2:

                      @Luis-Andés-Olmedo
                      Ok so I am not alone with those crazy high bpm in the beginning of each easy run…

                      The crazy high BPM at the beginning of an easy run is since forever on my Vertical too.

                      Suunto Vertical Ti

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                      • Tomas5T Offline
                        Tomas5 Gold Members @sorinus
                        last edited by Tomas5

                        @sorinus try to wait minute or two after watch lock on HR before starting your excercise.

                        Suunto Ambit 2, Suunto 5, Suunto Race 2

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                        • EgikaE Offline
                          Egika Platinum Member @Tomas5
                          last edited by

                          @Tomas5 with almost every Suunto watch I had bad OHR readings when riding my bike.
                          Usually it would eventually just fall into the lower 80s and stay there.

                          Race 2 was the first watch to ever got OHR in cycling right for me! 🙂

                          t6, S6, Elementum Terra, Ambit 3 Sapphire, Spartan Ultra Copper, Traverse Alpha, S7 Graphite LE, S9B Ambassador, S9P Granite Blue Titanium, S9PP Titanium Sand, Vertical All Black, Race Titanium Charcoal, Race S All Black / Titanium Courtney, Run Lime

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                          • M Offline
                            Matteiva @Tomas5
                            last edited by Matteiva

                            @Tomas5 Mine is 100% off… See my report https://forum.suunto.com/post/177055

                            With screen capture, same evening first 10k easy with suunto ohr 165/170…
                            Then another last km with polar chest just to confirm I was not crazy or hill 🙂

                            Same pace in both case 5:35 per km

                            9089.jpg 9091.jpg

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                            • Tomas5T Offline
                              Tomas5 Gold Members @Matteiva
                              last edited by

                              @Matteiva my test from bike ride turned out good. Comparing to chest strap. I will do similar for walking activities. I am suspiciouse there is possible cadence lock when watch is not tight on your wrist. But i will see after comparison with chest strap. Hope i will find time to test this week.

                              Suunto Ambit 2, Suunto 5, Suunto Race 2

                              M 1 Reply Last reply Reply Quote 1
                              • Tomas5T Offline
                                Tomas5 Gold Members
                                last edited by

                                With old Suunto 5 i hade from time to time crazy high HR measurement using OHR sensor. At least this didn’t occured yet on Race 2. So big improvement in that for my.

                                Suunto Ambit 2, Suunto 5, Suunto Race 2

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                                • M Offline
                                  Matteiva @Tomas5
                                  last edited by Matteiva

                                  @Tomas5 🙂 in 10 years that’s the worst OHR I have ever seen for me while running

                                  chest are always the best for specific workout, but for daily training or trail a good OHR should be enough, I use both chest and ohr, but very disappointed with the race 2, meaning I can not train with it’s ohr 🙂

                                  G G 2 Replies Last reply Reply Quote 0
                                  • G Offline
                                    gogapo @Matteiva
                                    last edited by

                                    @Matteiva I’ve been having a few problems with my Race 2, but OHR isn’t one of them — it’s actually been quite good, to be fair. Much better than my previous Coros Pace 3.

                                    Today I did a 45-minute workout: 5 minutes in zone 1, 30 minutes in zone 2, and 10 minutes in zones 4 and 5. The watch performed impeccably in terms of OHR accuracy, as you can see here

                                    Suunto Race 2

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                                    • G Offline
                                      Gunnar Bronze Member @Matteiva
                                      last edited by

                                      @Matteiva hey, I am curious. Which OHR did you use 10 years ago? Must have been one of the first gadgets.

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                                      • M Offline
                                        Matteiva @Gunnar
                                        last edited by

                                        @Gunnar Tomtom watch, maybe not 10 but 8 🙂 ohr was better 🙂

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                                        • M Offline
                                          Matteiva @gogapo
                                          last edited by

                                          @gogapo it surely depends per individual, skin tone, pilosity, and veins

                                          I always used same strong nylon scratch band since garmin fenix 6x

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                                          • G Offline
                                            Gunnar Bronze Member @Matteiva
                                            last edited by Gunnar

                                            @Matteiva I just read a review of the Tomtom runner 3. Same user experience as today for current watches. Nothing changed apparently 😉

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