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Hi everyone,
I’ve uploaded a new Constantin version: 2.08.
This update is mainly about stability. Some users, especially on newer watches when using route navigation and other SuuntoPlus apps like ZoneSense at the same time, could see Constantin or another SuuntoPlus app get unloaded during an activity. The watch logs pointed to the screen/UI side being overloaded, not to the sport calculations themselves.
So this version makes the workout screen much lighter.
What changed
The app now uses fewer internal data channels between the app logic and the watch screen.
The old separate chart-history outputs were removed.
The chart drawing was simplified.
The heart-rate zone arc was replaced with a simple colored vertical bar on the right edge of the chart.
The “now” dot was removed.
The trend chart now builds toward a broader view of effort over roughly the last 10 minutes. Early in the workout, or shortly after opening the Constantin screen, the chart may show a shorter trend until enough data has been collected.
The app keeps one focused screen with movement speed, heart rate, trend, and HR zone context.
This should reduce the UI memory/load pressure that was causing crashes or SuuntoPlus apps being unloaded, especially when Constantin is used together with navigation or ZoneSense. I tested this version yesterday on a watch and it worked as expected.
Sport-specific display
The main workout value now adapts to the sport:
Road, track, treadmill, and track-and-field running show pace.
Trail, vertical, orienteering, obstacle, and adventure running show NGP.
Other sports show speed.
So the screen should now better match the type of activity, while staying simpler and lighter for the watch.
What’s next
I’m planning more UI work in future versions, but the focus will stay on readability, stability, and simplicity rather than adding new features or more metrics.
Feedback is very welcome, especially reports about crashes or SuuntoPlus apps being unloaded. If you see a problem, please share the watch model, activity type, other SuuntoPlus apps used, and whether route navigation was active.