Apologies if this isn’t the right topic to be posting this issue but it is certainly pertinent to the use of external HR sensors with the Suunto Run. Putting aside the issues i have had with the Coros armband which i have posted about in that specific topic i have also experienced issues when using a chest strap. The HR graph normally looks absolutely fine as expected but i am usually given a different max heart rate in the run summary. [image: 1772494841112-screenshot_2026-02-22-18-21-23-970_com.stt.android.suunto.jpg] [image: 1772494883386-screenshot_2026-02-22-18-21-44-133_com.stt.android.suunto.jpg] This example is from a run where i chucked in three sprints and as the graph shows my heart rate doesn’t go above 180 which is inline with what i expect for the effort. With a chest strap the Heart rate summary seems to always be different to the graph. What’s odd is when using a chest strap, which works perfectly with my other watches, i get this max heart rate discrepancy and the synced data in Strava will show a mix of the correct max heart rate which is reflected in the Suunto produced graph or it will show what i’m sure is the incorrect max heart figure as produced in the Suunto app summary. There seems to be something going on here with the relationship between watch and external sensors and how the data is all displayed within the app. Is this something seen before on Suunto or unique to how they process the data? My experience with Suunto only extends to the use of the Suunto Run having used Garmin for years.

@SimonDe Bonjour j ai le même problème avec la nouvelle version de logiciel j ai toute les peines du monde pour synchroniser les cadrans problème de bluethood je pense. J ai reussi hier j ai reinitialiser la montre . Mais la joie etait de courte durée puisqu aujourd’hui les cadrans ont disparu et impossible de synchroniser de nouveau les cadrans . Bien a vous

My run today was spot on. Used the Run with the Coros HRM and it was exactly the same as the Polar chest strap. Before I had followed the suggestions and uninstalled and reinstalled the app. So it does seem that at least for this run it has eliminated the spiking. However it has been mentioned in previous posts that uninstalling and reinstalling the app solved the problem each time in occured suggesting it is a temporary fix and not a permanent solution. It also doesn’t alter the data that is already present and incorrect from previous runs so I do believe it’s an issue Suunto need to look into.

@ADidier said in Third-party training: @Brad_Olwin, I understand that the old operating system of the Race 2, Vertical 2 requires an addition in the form of additional applications, it was designed like this. I just hope that with this new software platform, Suunto will be able to communicate with third parties such as other watch brands (Garmin, Coros) that do not use Suunto+. In the meantime, I hand transpose my Runna plans into interval training. At the moment, there’s no sign the new OS used for the Run will be continued to be used. The Race 2 and Vertical 2 use the older OS and those watches were released after the Run. The Run OS was described as “an experiment” not as a direct successor.

That would be better for my eyes. [image: 1771490744172-img_0468-1024x1379.png]

@zagazoo just have it as dashboard tile, should be enough? [image: 1771418336501-screenshot_20260218-133830.png]

@zagazoo I emailed Suunto support. At first I got a generic response, then when I insisted I got a slightly less generic one (they told me I should buy the Suunto hr strap lol), and finally the third time they said that indeed there is a compatibility issue on Suunto’s side and that they’ll look into it. You should nudge them too.

@Ckn1010 If you init a running activity with Free mode and config one screen with lap fields, I think it is exactly that you want.

@Egika Is there a table/list that lists the various user requests? Because it must be difficult and redundant for the development teams to read all these discussion threads.

@herlas Thank you for these details, I counted my Assioma pedal equipment and it is unfortunate that the Run does not record the cadence. Have you used the training programming in walking class? Is there only this screen? I find the texts very small! [image: 1770463945743-suunto-run-lime-intervals-grande.jpeg]

@dimachad Tried a new Suunto Run and this actually works, thanks!

Did you remove/disable the message widget?

@Charlie-Needham known issue and Suunto is aware, no idea if it’ll get addressed in a future update.

@herlas it’s only really an issue when I’m wearing gloves. I haven’t done it since the first couple of times because I’m so paranoid about ending the run. It just seems strange they have the crown button as the resume, when I press the top button to pause. I’m not a fan of auto-pause, I never find it reliable.

@ShinJCD interesting. I am loving the Run more and more each day. When I got it, I was kind of hesitant because of the different UI to other Suunto watches. Now some things of this have changed plus I got used to others. Also the options to adjust the activity settings have increased and the watch shines with features other models don’t have: Music stored in the watch custom pictures as watch face background built in Ghost runner, metronome function and voice announcements It is light weight and since I disabled raise to wake and notifications, the battery seems to last forever.