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    Suunto 7 Altitude Issues

    Scheduled Pinned Locked Moved Suunto 7
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    • aeroildA Offline
      aeroild Bronze Member
      last edited by aeroild

      Something has happened to the barometric altitude measurments of my Suunto 7. I have run the same route almost once a week since I got the watch 31. January and can compare the route profile from runs on the route the last eight months.

      First, here is the route profile drawn by me after a topografic map:
      høydekurve siri 4k.png

      The first six months the watch did a great job recording the profile. The profile recorded by the watch was almost identical from February to July on at least 25 runs. Here are two examples:
      10. February:
      10February.jpg
      25. July:
      25july.jpg

      Then suddenly in August the profile started to get more and more smoothened, untill it now looks like a GPS made profile.
      21. August:
      21August.jpg
      27. September:
      27September.jpg

      Now it is constantly bad and useless as a barometric altimeter.

      From when I started to notice the bad readings I have been careful to not cover of brush against the barometric sensor with e.g. a sweater or other fabric. In case there was something cloging the barometer hole, I have soaked and rinsed the watch in water serveral times. That hasn’t helped.

      Has anybody else experienced anything like this? Any idea what the problem might be?

      1 Reply Last reply Reply Quote 0
      • vr2udtV Offline
        vr2udt Bronze Member
        last edited by

        Just an update to my earlier issue posted here on 12 Sep, about the excessive ascent/descent values recorded - the watch was sent to service center and within a month I received a new unit. Credit to Suunto service for that. After received the replacement, I updated its firmware to the latest and did some more testing. Yes, the problem is gone, ascent/descent are within acceptable ranges (minute fluctuations still observed), although unlike the S9B or SSWHRB which would consistently be showing 0 ascent/descent on flat terrains, or indoors.

        1 Reply Last reply Reply Quote 2
        • freeheelerF Offline
          freeheeler
          last edited by freeheeler

          I did not find anything similar posted here to the observation I made when looking at my wifes activity with her S7.
          She went skitouring and started at 918m of altitude.
          The watch shows lowest point at 870m. The highest point is 1’580m and the watch shows 1’581m 👍
          What surprises me is that the alti graph starts at 814m and within a very short distance (and hence time) rises steep roughly to the actual start altitude. The end alti is about correct. The total ascent should be around 665m as there is no real downs on the way up.
          The total recorded ascent is 854m.
          So the difference of start alti is about 100m wrong while the lowermost point is only shown in the graph and hence differs from the values shown in the overview.
          The total ascent is about 190m wrong… did somebody else have similar experience?

          EDIT: the descent shows correct 651m. That’s about correct. Start and end point was the same at the parkinglot.

          Screenshot_20201212-115049.png

          living sideways

          isaziI 1 Reply Last reply Reply Quote 1
          • isaziI Offline
            isazi Moderator @freeheeler
            last edited by

            @TELE-HO so something like fusedalti or equivalent not working totally right?

            Watch: Suunto Vertical Ti

            Blog: isazi's home

            pilleusP freeheelerF 2 Replies Last reply Reply Quote 1
            • pilleusP Offline
              pilleus @isazi
              last edited by

              @isazi the question is how the Suunto wear app does calibrate the altitude at the starting point?

              In other apps this can be done manually.

              https://www.instagram.com/moves.are.life/
              Suunto Vertical Black Lime
              Suunto 9 Peak Pro Black
              Suunto Spartan Ultra Stealth Titanium

              1 Reply Last reply Reply Quote 1
              • freeheelerF Offline
                freeheeler @isazi
                last edited by

                @isazi
                @pilleus
                yes, I assumed S7 has the same fusedalti as S9B?
                …my wife decided for the S7 without my approval while I was in a never ending meeting 😉 I absolutely agree that this is a great watch, but now I am obliged somehow to learn two different worlds 😂

                living sideways

                isaziI 1 Reply Last reply Reply Quote 1
                • isaziI Offline
                  isazi Moderator @freeheeler
                  last edited by

                  @TELE-HO well I don’t know how the calibration on the S7 works, but there must be some calibration because it gets good results without manual intervention. What I see is that the S7 is young, and it is improving in features and precision with each update.

                  Watch: Suunto Vertical Ti

                  Blog: isazi's home

                  freeheelerF 1 Reply Last reply Reply Quote 1
                  • Dimitrios KanellopoulosD Offline
                    Dimitrios Kanellopoulos Community Manager
                    last edited by

                    Let’s see if this was a warm-up issue.

                    This should not happen and yes s7 has the same fused alti.

                    However, not the same gps chip. It can well be that it calibrated wrongly (100+m???) The initial altitude and due to the correction (as seen) this was counted as ascent.

                    This is a typical behavior of gps based altitude , chip cold start, etc. Even ambits (without baro) have this and so on.

                    I am keeping track of this and reporting it.

                    Go on and keep the discussion.

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

                    freeheelerF 1 Reply Last reply Reply Quote 2
                    • freeheelerF Offline
                      freeheeler @isazi
                      last edited by

                      @isazi
                      fully agree! the peak altitude was to the point!!
                      …I have the impression that the calibration is not overwriting the history?

                      living sideways

                      1 Reply Last reply Reply Quote 1
                      • freeheelerF Offline
                        freeheeler @Dimitrios Kanellopoulos
                        last edited by

                        @Dimitrios-Kanellopoulos
                        ok, so maybe she started the activity too quick, without letting the satellites to sattle and let fusedalti do its work?
                        we’ll observe this 👍

                        living sideways

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

                          @TELE-HO yes. This can happen after a reboot also.

                          But should not on the s7 as it has a barometer.

                          Not 100% sure to be honest what’s going on. First time I kinda of see this for the s7. But you never know.

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

                          Kurt68K 1 Reply Last reply Reply Quote 1
                          • Kurt68K Offline
                            Kurt68 @Dimitrios Kanellopoulos
                            last edited by Kurt68

                            @dimitrios-kanellopoulos I have the same problem. Today I started a training session and waited 4 minutes. I climbed 40m without moving. Then I finished the training and started a new one, waited 2min and started running. this time there was an acent of 24m on the first flat 200m. On the whole lap then 72m more than with the Ambit 3.

                            https://quantified-self.io/user/diADq2nerESCkHAzB06aiagM9lc2/event/reFr0Df2p0ZsuoyB0bvR

                            Bildschirmfoto 2021-01-22 um 11.00.55.png

                            Bildschirmfoto 2021-01-22 um 11.04.09.png

                            1 Reply Last reply Reply Quote 0
                            • Jakub NovotnýJ Offline
                              Jakub Novotný
                              last edited by Jakub Novotný

                              Hi, I have Suunto 7 for 3 days. Is there any possibility to calibrate altimeter/barometer as I am used with Ambit 2? I haven’t found this possibility so it seems that it is done only automatically through FusedAlti.

                              PXL_20210119_183028909.jpg

                              isaziI 1 Reply Last reply Reply Quote 0
                              • isaziI Offline
                                isazi Moderator @Jakub Novotný
                                last edited by

                                @jakub-novotný said in Suunto 7 Altitude Issues:

                                Hi, I have Suunto 7 for 3 days. Is there any possibility to calibrate altimeter/barometer as I am used with Ambit 2? I haven’t found this possibility so it seems that it is done only automatically through FusedAlti.

                                I don’t think it is possible at the moment, but some third-party altimeters seem to let you do that.

                                Watch: Suunto Vertical Ti

                                Blog: isazi's home

                                EgikaE 1 Reply Last reply Reply Quote 0
                                • EgikaE Offline
                                  Egika Platinum Member @isazi
                                  last edited by

                                  I wonder if the S7 does the same automatic altitude and pressure tracking as other Suunto watches do it.
                                  Slow pressure changes are regarded as weather change and quicker changes are regarded as altitude change…

                                  Does anyone know how it is handled internally when not in training mode?

                                  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 - TI Canary - Titanium Courtney

                                  Luca BellardoL 1 Reply Last reply Reply Quote 0
                                  • Luca BellardoL Offline
                                    Luca Bellardo @Egika
                                    last edited by

                                    @egika In my opinion the S7 does not perform any altitude monitoring. I have tested with a third party altimeter, it updates very infrequently and sometimes it seems to me that it does not take the calibration that happens with Suunto rigs. Perfect altitude instead during the activities! (often compared with S9 cheater). Too bad, I too would like an altimeter management as it was for the Ambit series and as it is for S9 … In the end I have always considered Suunto first of all altimeters, to which they added the GPS starting from the series Ambit (which I’ve all had!)

                                    Brad_OlwinB 1 Reply Last reply Reply Quote 0
                                    • Brad_OlwinB Online
                                      Brad_Olwin Moderator @Luca Bellardo
                                      last edited by

                                      @luca-bellardo said in Suunto 7 Altitude Issues:

                                      @egika In my opinion the S7 does not perform any altitude monitoring. I have tested with a third party altimeter, it updates very infrequently and sometimes it seems to me that it does not take the calibration that happens with Suunto rigs. Perfect altitude instead during the activities! (often compared with S9 cheater). Too bad, I too would like an altimeter management as it was for the Ambit series and as it is for S9 … In the end I have always considered Suunto first of all altimeters, to which they added the GPS starting from the series Ambit (which I’ve all had!)

                                      You are incorrect, the S7 uses FusedAlti. I have many examples of corrections and virtually all of my S7 altitude profiles match my S9 baro. I often wear both watches.

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

                                      EgikaE 1 Reply Last reply Reply Quote 1
                                      • olymayO Offline
                                        olymay Gold Members
                                        last edited by

                                        I haven’t noticed any issues with the altitude recorded by my Suunto 7.

                                        For example, today I did a run along a local canal and at a defined point I turned around and came bac along the exact same route.
                                        As expected a canal is pretty flat, and the watch recorded only 3m of altitude change (I ran 8.6km out and back with a total of 17.2km).
                                        The plot of altitude change is also symmetrical, as one would expect.

                                        Suunto 7 Graphite Copper
                                        Suunto App Beta (Android - Pixel 6 Pro)

                                        1 Reply Last reply Reply Quote 0
                                        • EgikaE Offline
                                          Egika Platinum Member @Brad_Olwin
                                          last edited by

                                          @brad_olwin said in Suunto 7 Altitude Issues:

                                          @luca-bellardo said in Suunto 7 Altitude Issues:

                                          @egika In my opinion the S7 does not perform any altitude monitoring. I have tested with a third party altimeter, it updates very infrequently and sometimes it seems to me that it does not take the calibration that happens with Suunto rigs. Perfect altitude instead during the activities! (often compared with S9 cheater). Too bad, I too would like an altimeter management as it was for the Ambit series and as it is for S9 … In the end I have always considered Suunto first of all altimeters, to which they added the GPS starting from the series Ambit (which I’ve all had!)

                                          You are incorrect, the S7 uses FusedAlti. I have many examples of corrections and virtually all of my S7 altitude profiles match my S9 baro. I often wear both watches.

                                          Maybe misunderstanding:
                                          Luca states that during activity, altitude registration is Suunto state of the art.
                                          Just not when not recording.
                                          And that was my question: S9 has an automatic altitude measurement that I can have on the watch face and that follows weather changes and switches to altitude change when quickly moving uphill or downhill.
                                          How does S7 handle the altitude measurement when not recording an activity?

                                          Cheers!

                                          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 - TI Canary - Titanium Courtney

                                          Brad_OlwinB 1 Reply Last reply Reply Quote 2
                                          • Andrea Antonio GuadalupiA Offline
                                            Andrea Antonio Guadalupi
                                            last edited by

                                            I find this situation unacceptable, a product that costs almost 500 euros has all these problems …

                                            Jamie BGJ Brad_OlwinB 2 Replies Last reply Reply Quote 1
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