That's correct, distance plays a role in the estimate somehow so they limit it to when they can verify via GPS. They don't seem confidant on their distance rela

That's correct, distance plays a role in the estimate somehow so they limit it to when they can verify via GPS. They don't seem confidant on their distance relative to running on a treadmill. I find my watch is pretty close to the treadmill readout most of the time except when I start getting tired and holding onto the handles, then it begins to diverge.