Suunto has started rolling out firmware version 2.43.8 to several of its top-tier watches. The update brings new running features, smarter GNSS handling and a long list of additional data fields.
Focus on track running and smarter GPS
The highlight for many users will be the new outdoor track running mode. You can now specify your track lane and choose from standard 400m or custom lengths between 200m and 400m. That means more accurate splits for anyone training on oval loops, especially if you’ve ever struggled with GPS bouncing around on tight curves.
Suunto is also tweaking how satellite optimization works. If you’re using a Race, Race S or Vertical, the watch will now quietly refine its GNSS performance every night over Wi-Fi. The catch is that the Suunto 9 Peak Pro doesn’t get this. But for the rest, it’s a smart move that should improve route tracking without requiring manual updates.
Expanded metrics in sport modes
This update also expands the range of data fields that you can display during a workout. It’s not just about the usual pace and heart rate anymore. You now get finer control with options like ZoneSense durations for aerobic, anaerobic, and VO2Max zones. You also get detailed lap information such as previous lap average pace, heart rate, power and more. The full list ca be found here.
For multisport users, there’s now support for showing average pace and power across the entire activity. That should help triathletes and other endurance athletes get a clearer view of performance over multiple disciplines.
Map visuals and sensor insights
Another change is the introduction of new winter map styles. This is limited to models other than the 9 Peak Pro. The new map visuals will likely make it easier to navigate snowy trails, where elevation and contrast can be harder to interpret with standard styling.
Sensor readouts also see some refinement. Forecasted temperature and wind have been added, along with battery percentage and even signal strength for GPS. Compass heading is now available as a real-time data field, and you can also display current heart rate, power and pace zones.
Worth installing if you’re detail-focused
This update doesn’t bring any headline-grabbing new features, but for users who care about data precision and configuration, it’s a notable improvement. The changes are most useful for runners and triathletes who want to see more during their sessions and better understand how they perform across specific zones or intervals. Suunto has kept the visual polish while expanding the utility, which is a nice balance.
The update is rolling out in stages starting June 16th. If you own a supported model and care about tracking accuracy or detailed performance analysis, it’s worth making time for the install.
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