So here's the test I did. Bike ride with watch connected via bluetooth to phone, distance off 1-1/10th of a mile over 19 miles. Pretty good! Return trip disconnect watch from phone and the watch took 5 minutes before it started to track distance and even then it was sporadic. Restarted watch, start again, nothing. So I just left it. Check it later on and it was tracking distance although 5-1/2 miles behind. Crazy. Not sure if GPS is designed to work better when connected through 3G or not when stand alone, (I have not signed up watch with Verizon). If GPS cannot work properly as stand alone what's the point? I'm sensing a call to Samsung to complain, although I doubt that will get anywhere.
What have the rest of you experienced with GPS when in stand alone mode or connected mode?