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Jcgunn724
User level: Level 1 (4 points)

Apple Watch Series 12 distance tracking inaccurate after upgrade and calibration

Upgraded from Series 5 to series 12 watch because battery was not maintaing power. Walked outside, 50 minutes; beginning step count: 5478; distance 2.3 miles.

Step count after walking 50 minutes: 7,035; distance: 3.73 miles.

Did the calibration, iOS update

(22 min walk outside), finished with 8,105 steps, 3.56 miles.

How do I lose distance???!!!

is there a fix coming? Terrible product.

I don’t expect an answer, but it feels good to vent.


Posted on Nov 7, 2026 4:42 PM

5 replies

WheelieNick
User level: Level 9 (74,110 points)

Nov 8, 2026 7:39 AM in response to Jcgunn724

Hi there


Please try this


  1. Wipe the Buggy Calibration Data
  2. Open the Watch app on your iPhone, go to My Watch > Privacy, and tap Reset Fitness Calibration Data. This forces the watch to delete the corrupted stride calculations it just made. 
  3. Perform a Force Restart
  4. Directly after resetting the data, press and hold both the Side Button and the Digital Crown on your watch until the Apple logo appears. Do the same to restart your iPhone. 
  5. The Unpair/Re-pair Method (If the Reset Fails)
  6. If your next walk is still wildly inaccurate, users on Reddit found that unpairing the watch entirely from the iPhone and restoring it from a backup forces the new OS to properly communicate with the phone's location services. 


Carol B.
User level: Level 7 (22,975 points)

Nov 8, 2026 8:32 AM in response to Jcgunn724

May I suggest ... based on my experience with the same issue ... Recalibrate the Watch one more time, then give it several days. My Watch 12 is now back to what seems to be the correct steps and distance. Nick's advice was good. All I needed after that was patience and several outdoor walks to help the calibration along.


Recalibrate Apple Watch

Jcgunn724 Author
User level: Level 1 (4 points)

Nov 8, 2026 9:50 AM in response to Carol B.

Thank you. I’ll try; I’m assuming one recalibration is enough, but track a few walks or runs after the recalibration.

thanks again.

Jcgunn724 Author
User level: Level 1 (4 points)

Nov 8, 2026 9:50 AM in response to WheelieNick

Thank you very much.

Carol B.
User level: Level 7 (22,975 points)

Nov 8, 2026 10:30 AM in response to Jcgunn724

You are welcome.

Originally posted at discussions.apple.com/thread/256390534