Originally Posted by mx125
However, there still will be differences in auto stop at lights etc. The cateye will shut off the clock as soon as I stop. The Garmin has a range which may differ. With GPS there is the further siliness of position fluctuations which could cause your timer to start momentarily although you aren't moving.
You can set it to autostop.. it does not do it out of the box I dont believe. I personally keep it at about 4MPH. That seems to work best on my road bike.