Its pretty useless, especially on a roadbike with drop bars you wont be able to see it and its so tiny you will run into accidents.Hey,
Does anyone know how long the S10's battery (non-cellular) would last when navigating on a bicycle using a .gpx file? Ideally the screen would be on the whole time, but tapping it to wake would be fine too.
I've never owned an Apple Watch so I don't even know which app I should use to do this so, I can't help with that.
Get a garmin/wahoo or other brand bike computer for navigation.