Originally Posted by lsberrios1

As a reference. I ride with 2 other friends and we all have G 500. We also use strava. When we ride together there is one garmin that registers almost always 200 feet less than the other 2 for the same ride. Given that the same devices were used, and we use the same data tracking website I assume it is calibration and garmins are fairly accurate within 5-10%. That doesnt sounds great but it's not horrible either.