Anyone can explain this? Both on watch and Connect app. How come 20km is 15997 steps? Garmin fenix 6x Pro Firmware 19.20
20km is approximately 16,000 steps because that's what the math works out to based on your stride length.
If that's not correct, then go into the User Settings in Connect Mobile on your phone and change your stride length to something closer to what you think is correct. Here's what the screen for setting your Stride Length looks like on my iPhone:
When I'm walking, I know that I take about 1,945 steps per Mile. I enter those values, the App calculates the Stride Length, and then uses that number to calculate distance for future walks.
Of course, if that's not what you are asking, then... never mind.
HTH