I have one and I am having problemas with the gps and I am looking for information about the accuracy in order to know if it is about my watch or not
I normally used to go my my nexus 5 and endomondo and I think that it is pretty accurate, I did my first half marathon with it in dicember and it tracked 21km 99.
but now comparing the mobile with the wacth I find big differencies in a route with a lot of slopes:
1 day:
mobile with endomondo 8km 44
watch with moto body running 8km 69
2 day:
mobile with endomondo 8km 42
watch with endomondo 8km 53
moto body does not show me information about the altutude and the changes of it, but with endomondo I saw that the watch does not calculate properly this matter.