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    to solar or not to solar?

    Scheduled Pinned Locked Moved Suunto Vertical
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    • S Online
      Stavrogin @ElectronBadger
      last edited by Stavrogin

      @ElectronBadger I have the solar and I agree with most. You probably do not need it, but if you really want titanium then…

      The only thing I could see it being super useful for is when I do several day (I mean like 7+ days) of backpacking. The solar would potentially take a bit of edge off of the loss of battery due to GPS usage, but having said that most of my trekking is done at least half the time under tree cover so that will make it mute.

      The one thing I do not like about the solar is the greenish tint that it gives the outside of the screen. Black would be much cleaner looking in my opinion.

      An example for me would be last year then I did the Colorado Trail from Silverton to Durango. Didn’t really see a lot of help from the solar. The only time I would get a good solar bump was going over passes.

      If you are a road cyclist and plan on strapping your watch to the handle bars you might see some solar usage out of that. Plus with the MIP it would not need to turn on the light every time you flicked your wrist to see where you were or how you were doing.

      If I were to disappear into the bush for a month, maybe.

      Suunto Vertical, Vertical 2, Race, Race 2, Race S and Run. Rocking the Race S at the moment.
      Garmin: Fenix 7X, Epix Pro 51mm, Forerunner 265.
      Coros: Pace Pro, Apex 4

      1 Reply Last reply Reply Quote -1
      • VoiGASV Offline
        VoiGAS Gold Members
        last edited by

        Its a sunny but freezing winter day in Austria and the Suunto Vertical is charging indoor (!) in the sunshine. Even behind the window it has “High” values and the battery state increased. So I think it should be technically possible to only charge with sunlight.


        Race S
        Vertical Titanium Solar
        Ambit3 Vertical

        mickywickyftwM 1 Reply Last reply Reply Quote 0
        • mickywickyftwM Offline
          mickywickyftw @VoiGAS
          last edited by

          @VoiGAS just drove back from Tirol and wanted to say the same thing 🙂
          When switched off and in sunshine, the battery charges 1% in 100-120 mins.
          When using it, Suunto’s own stats tell the real story… not many people will need solar but it’s a nice to have.

          1 Reply Last reply Reply Quote 1
          • VoiGASV Offline
            VoiGAS Gold Members
            last edited by

            The Vertical Solar is an absolutely absurde watch. I don’t remember when I last charged it because it lasts like forever. Weeks, Months, or if you don’t use it as a Smartwatch and give it proper sun really forever.
            Today in the morning it had 83%.
            Put it in the sun (behind a window) for 2-3 hours: 84%.
            Running 1,5 hours 82%
            Placing it outside in the sun for 2 hours: 83% again! And still charging…

            Complete massive overkill. But I like it 😁


            Race S
            Vertical Titanium Solar
            Ambit3 Vertical

            ElectronBadgerE thanasisT 2 Replies Last reply Reply Quote 4
            • ElectronBadgerE Offline
              ElectronBadger @VoiGAS
              last edited by

              I also enjoy mine A LOT. All types of my activities, bike rides, daily trainings, ultra races, adventure trekkings, yoga, you name it. Really excellent battery life. The best watch I’ve ever had.

              Suunto Vertical Solar All Black

              1 Reply Last reply Reply Quote 3
              • thanasisT Offline
                thanasis Bronze Member @VoiGAS
                last edited by

                @VoiGAS can you share the setup of this ? Do you use oHR? Notifications? Strap ?

                Thanks

                VoiGASV 1 Reply Last reply Reply Quote 0
                • VoiGASV Offline
                  VoiGAS Gold Members @thanasis
                  last edited by VoiGAS

                  @thanasis None of that. Just syncing with the App from time to time. It would not work if you wear it between the activities. I just used it for running and then leave it in the sun.
                  Today was a pause day, so the watch got a full day in the sun without interruptions. Went up from 80% to 84% 😀


                  Race S
                  Vertical Titanium Solar
                  Ambit3 Vertical

                  sartoricS 1 Reply Last reply Reply Quote 0
                  • sartoricS Offline
                    sartoric Moderator @VoiGAS
                    last edited by sartoric

                    @VoiGAS
                    Be aware that it’s not recommended

                    Screenshot 2026-03-01 at 23.34.20.png

                    SVTS - 2.50.28
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                    VoiGASV 1 Reply Last reply Reply Quote 0
                    • VoiGASV Offline
                      VoiGAS Gold Members @sartoric
                      last edited by

                      @sartoric Didn’t know that, thank you for the warning! Its still cold here, so I hope the watch didn’t got hurt


                      Race S
                      Vertical Titanium Solar
                      Ambit3 Vertical

                      SquirrelS 1 Reply Last reply Reply Quote 0
                      • SquirrelS Offline
                        Squirrel Silver Members @VoiGAS
                        last edited by

                        @VoiGAS It all depends on the internal and thus battery temperature. You can easily check the internal temperature by looking at Alti/Baro/Temp widget after some time in direct sunlight. It depends on the ambient air temperature and also largely on the amount of infrared radiation the watch is exposed to. For example if the watch is in the interior and behind IR blocking glass window, the internal temperature would be very close to ambient temperature considering the very low charging power generated by photovoltaic panel. If this is let’s say between 20-25°C ambient air, that’s way more favorable for long term battery health than on the wrist temperature of ~32°C (currently on my wrist).
                        Leaving it directly outside is of course a bad idea for prolonged periods, unless you can compensate by low ambient air temperature that keeps internal temperature from raising to unhealthy levels.

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