Cannot calibrate indoor run for Apple Watch 6

Question

How can I calibrate the Apple Watch 6 manually so that the indoor running estimation gets more accurate ? I run a little faster than average, so it underestimates about 300 meters per kilometer. That sucks. I have all the settings correct for using outdoor runs as a data foundation for calibration (I have a lot of runs), but it doesn't make much of a difference. Maybe I move a little bit differently on the treadmill and obtain a more stable posture with more of a constant speed with flat and nice elevation compared to a more up and down all the time environment outside. I don't know. Is it possible to do this manually now ? (I know it is not possible on Apple Watch 2, but I was sure that it was going to be possible now ... It's 2020 ... duh!). Help.

Answer 1

There is no manual calibration. You can hope that your indoor stride matches your outdoor stride and use it to refine the step lengths.

• https://support.apple.com/en-us/HT204516

The system calculates stride length based on GPS and pace, so if you’re is off, resetting the existing calibration and repeating the outdoor calibration in straight line / flat conditions might be worthwhile.