I still think it would be much easier – and therefore faster – to implement this in the SuuntoApp rather than in the watch software. You could achieve not only the same results but even more. Plus, you wouldn’t have all the limitations – sleep analysis, recovery, TSS, CTL, ATL, HRV, etc. You could also, for example, use different activities during a multi‑day trek – like swimming, climbing, or via ferrata – without having to deal with complicated activity session management or multisport mode.
Additionally, full freedom of sensor management between different parts of a multi‑day activity.
Reboot, update etc. between days etc.
On top of that, it would be available to every user (like ZoneSense), not just those with the latest watches. And you wouldn’t have to pray that a crash doesn’t happen during such long and complex recorded activities.
You could also relatively easily group and combine selected activities into one final one, and then – like with any regular activity – export it automatically to other services, just as it currently happens at the end of every activity.
Especially since, in such a case, it’s really only about the total distance, elevation gain, duration, and a few less important stats like steps or calories. All the other statistics are far more useful on a daily (per session) basis for ongoing analysis.
