Notes
Apple Watch Ultra low power workout mode. LTE, no HR strap. 3% battery drain over 1 hr translates to about 33 hour runtime on single charge. HR data uses the watch's optical sensor and is very bad
Watch: 6.30mi / 10.13k
Manual google map: 6.37mi / 10.25k
Only off by 1.17%, it's pretty good when running close to known roads that is on the map