User level: Level 1 (6 points)After updating my watch, my steps count decreased to about 1/2 of what I had previously recorded for the same distance and time. I reset my count as recommended by deleting it and going for a 20-minute walk outside. I am still not seeing the number of steps for the same activity as I was before upgrading.
Posted on Sep 24, 2026 2:24 PM
User level: Level 9 (74,110 points)Sep 24, 2026 2:58 PM in response to Hindie
Have you tried to restart it to see if the issues persist?
If that is not working you might want to recalibrate your fitness data to see if the issues persist
Calibrate your Apple Watch for improved Workout and Activity accuracy - Apple Support
User level: Level 10 (93,009 points)Sep 25, 2026 2:43 AM in response to Hindie
There have been a number of other users seeing this issue after the watchOS27 upgrade, mostly on the newer Apple Watch 12 and Ultra 4 models.
In some cases calibrating the watch again worked after a few more workouts.
If it did not, the step and calories count stayed at registering approx half of previous numbers, especially when selecting an Indoor Walk or Indoor Run.
The only thing we can do as users at this point is, using the Feedback link:
Feedback - Apple Watch - Apple
Also have a look at this similar discussion
Accuracy issue with Apple Watch Series 12… - Apple Community
User level: Level 1 (76 points)Sep 25, 2026 4:50 AM in response to Ingo2711
I updated to WatchOS 27.0.1 Sadly it didn’t cure the steps/calorie issue.
User level: Level 1 (6 points)Sep 25, 2026 11:49 AM in response to WheelieNick
I have restarted the watch. I have recalibrated my steps and this did not solve my issues.
Originally posted at discussions.apple.com/thread/256364373