When I go for a run I usually bring my phone with me and use it as a gps recorder, but I also use the watch as a backup. I haven't checked how accurate it is. I

When I go for a run I usually bring my phone with me and use it as a gps recorder, but I also use the watch as a backup. I haven't checked how accurate it is. It usually takes a minute to get a good gps signal, and sometimes there's a lot of noise at the beginning of the route. It vibrates at each km mark, which is nice. I believe there are some online reviews with better info about the physical activity recording.