Here is a question for the group, a trail i use is flat level etc and 1 mile in length, when I bike it I get a distance of .3 miles, when I walk/run I get a different distance .6-.7 miles. The watch can sync with my phone and the app is calibrated to my stride. So why the misinformation. Also the heart rate monitor is misleading as well. I have a phy exam and the doc's equipment stay some thing quite different that what the watch records. It this fake tech or do I have a crap model?