So I had the 3, 4 and now the 5. When I'm in the sauna, after 15 minutes it overheats. My 3 and 4 never did that.
Sounds like the overheat temperature sensors were improved in the 5. None of them are designed to work in the temperatures you find in a sauna. Or the level of steam.My 3 and 4 classic were fine in there, that's what's weird