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    Race 2 heart rate issues

    Scheduled Pinned Locked Moved Suunto Race 2
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    • Anrich PotgieterA Offline
      Anrich Potgieter
      last edited by

      signal-2026-01-15-173918_002.png signal-2026-01-15-173918_003.png

      Another two workouts with very broken HR, the HR is locked until my first rest, then begins to climb.

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      • T Offline
        the_mr_allen @Anrich Potgieter
        last edited by

        @Anrich-Potgieter Ok. I did a repeat of the same workout with the Vert 2 instead of my Race 2 and was back within normal ranges of the bicep strap. Not sure if this is something just with the Race 2 update as they supposedly share the same sensors. I’ll keep testing.

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        • Tomas5T Offline
          Tomas5 Gold Members
          last edited by

          @dimitrios-kanellopoulos @pavel.samokha is there any known issue to suunto with HR too low for around first 10 minutes of excercise with latest firmwareon Race2 ?

          Suunto Ambit 2 > Suunto 5 > Suunto Race 2

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          • Timo HelferT Offline
            Timo Helfer
            last edited by Timo Helfer

            I have a similar problem with my Race and Polar H10, where it gets stuck at 70-80bpm sometimes.
            Screenshot_20260124-173404.png

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            • Fulvio FerrariF Offline
              Fulvio Ferrari
              last edited by

              I had the same issue yesterday and today the heart monitor stopped working. After a hard reset, the HM came back and it is not working

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              • D Offline
                Daniel Thomas
                last edited by

                I recently got a Vertical 2 and today I did a comparison with a chest strap on the indoor trainer. I am coming from a Garmin Instinct, which always underread my heart rate so much that it was useless. I was very disappointed when I looked at the Vertical 2 during warm-up, where I was already breathing harder and the watch only gave me around 80 bpm, which is what I usually have for an easy walking pace on the flat. I started thinking that there is something wrong with my blood flow because it also doesn’t work! After 10 minutes give or take it was however spot on and matched the strap even up to a heart rate approaching 180 bpm.

                compare-activities.png

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                • L Offline
                  larrybbaker @Daniel Thomas
                  last edited by

                  @Daniel-Thomas cycling is always hit or miss due to arm tension/grip etc. Frequently discussed here.

                  Vertical Ti Solar
                  Race 2
                  iPhone 17 Pro

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                  • P Offline
                    piotras
                    last edited by

                    Hi everyone.

                    I got the very same issue as the others. Interestingly enough I bought the watch this week on Monday, did a setup, firmware update, and literally every activity has wrong HR readings.

                    The watch is struggling during first minutes during activities but that’s not all.

                    I was thinking ok, there is cold outside or smth and that’s why the HR is not quite catched , but no, even running at home for couple of minutes seems a struggle for the watch.

                    Btw. when I don’t do any activity and then let’s say I’ll quickly climb some stairs to the point where normally my arm band is showing up 130-140 and I am feeling tired, the watch is showing up 90-100 which is so weird.

                    I am thinking of returning it, as I still have an opportunity to do so.
                    I’ll try to reset the watch again, but I don’t expect any fireworks.

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                    • C Offline
                      cumbrian-runner @piotras
                      last edited by

                      @piotras I see poor HR too

                      https://forum.suunto.com/topic/14698/new-race-2-heart-rate-awful-distances-too-short

                      Can’t comment on earlier firmware as watch updated itself out of the box

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                      • C cumbrian-runner referenced this topic
                      • P Offline
                        piotras @cumbrian-runner
                        last edited by

                        @cumbrian-runner hi, yeah, I have the newest firmware as well.

                        I did a hard reset and did a 5km test run, and compared the activity with my old garmin forerunner 255 + polar verity sense arm band.

                        Looks much better now, there are some wobbles here and there (like showing up 10bpm higher in around 18minutes), but overall it is pretty good (162 to 163 bpm average).

                        My 5km run:
                        Zrzut ekranu 2026-02-23 o 08.26.54.png

                        Climbing the stairs still not quite good, the HR is updated to proper values only after i stop for a while, and yes I had the watch pretty tight on my wrist and a bit above the bone.

                        And to indicate what was going on before hard reset, one of my walks:
                        Zrzut ekranu 2026-02-23 o 08.36.55.png

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