Hello. I hope this thread is still active. So I got the GS2 2 weeks ago as a B-day gift, pretty psyched about that. I was debating between GS2 and Fitbit HR and ended up with the GS2. I did some research but didnt know what to expect, I knew I wanted it for all its features but I was most excited about the fitness monitoring. I like to run, lift, play rec sports, and most recently getting into mountain biking. After a week of trial I have more questions and concerns then answers and praise. So its pretty accurate in Run mode. Comparing the watch data vs treadmill data they are within measurments of eachother, nothing to complain about, pretty happy with that.
But the downfall is the cycling and lifting. I went on a 12 mile mountain bike ride, uphill downhill flat and the calories burned was 7. Same with weight lifting, worked out for about an hour, heart rate monitor was working well but again the calories burned was 3.
To me it seems like it only counts calories when the watch is moving back and fourth consecutively. fyi, i have the tmobile 3g/4g model. any feed back is appreciated.