Originally Posted by
hamster
How would Garmin know about your "speed" when it is a GPS and it clearly sees that you're stuck in one point (on top of your trainer in your kitchen)?
It's got a sensor on the back wheel that measures distance - it also measures cadence with a sensor on the pedal arm - it's all very clever - except it's clearly rubbish at working out calories based on heart rate which I would have thought would be more accurate - what if I'm coasting down hill it's going to think I'm burning millions of calories.