@wakarimasen said in Race 2: GPS, cadence and distance accuracy vs previous Suunto models:
I think we may be ‘agreeing violently.’
Agreed!
Nevertheless, I would be very surprised to learn that ‘official’ mapping is carried out by someone wearing a Suunto, Garmin, Polar or Corus device, and declaring the data ‘accurate.’
Only for OpenStreetMap
I made an interesting observation a few years ago when testing the SV1’s different GNSS presets (Performance vs. Endurance vs. Ultra). It seems that, as the GNSS accuracy/signal/capabilities (whatever you want to call it) increases, the measured distance decreases. Makes sense as fewer errors mean straighter lines and less distance. So it could stand to reason that the newer watches have even more accuracy, therefore measure slightly less distance.
However, I think this goes against all the work and analysis that @jjpaz has provided us here. It clearly looks like new watches have a different algo. My money would be on it having something to do with battery savings for those big, bright screens.