İ just start an activity - let's say walk - it will calculate the km's i had achieved after all.. and i just name it / by edittin the activity from my phone from walking to snowboarding... i'll have an accurate km of how much i travelled / burnt calories... am i right?
You have to make sure it is calculated using gps and not pedometer. Both run and walk, can calculate distance using pedometer, while bicycle activity only works with connected gps. So a safe answer would be, to use the bicycle activity.
