The ski mode is moderately effective and if you're in the mountains it will lose GPS signal during your ride.

Takes a very long time to find a satellite signal (I live in Miami area) and looses the signal, freezes or turns off unexpectedly

Had to call Garmin numerous times and after the back and forth, they sent me a refurbished watch and I continued to have the same problem, as well as losing signal during races

Croatia!Swimming with the watch is fun, although it looses GPS signal every once in a while, but that's expected.

experienced:- Watch briefly indicated that it lost satellite signal with clear skies.

Losing GPS signal from the top of a mountain with perfectly clear skies and a clear 360° view of the

Then I was finding that it was losing its signal half the time.

signal is solid-didnt lose connection

The watch is also very large; about the same size as a G-Shock watch

And random problems abound as