Move Ring Inaccurate

Hi

If your Activity app and/or Workout app estimations have changed significantly for the same activity, then the following steps may help:

If you have not yet done so, update your iPhone and Apple Watch to the latest compatible software versions, starting with your iPhone:

• Update the iOS on your iPhone, iPad, or iPod touch - Apple Support
• Update your Apple Watch - Apple Support

Check your personal information:

• Actiivity-related estimations depend, in part, on your personal information.
• To check that this is accurate:
  • On your iPhone, in the Watch app, go to: My Watch (tab) > Health > Edit - tap and adjust items, then tap on Done.

If you have ever previously used any third-party fitness tracking, sleep tracking and/or heart rate monitoring apps:

• Check the developers' support resources and/or contact the developers to check for any known issues affecting how data is shared to the Health app on your iPhone.

• Check whether there is an active or paused session within any of them.
  • If there is, then end that session from within that app on your Apple Watch.
  • If in doubt, it may help to remove any such third-party apps from your Apple Watch, at least temporarily.

Close certain apps and restart both your iPhone and your Apple Watch (normally):

• Close the Watch app, Activity app and Health app (if open) on your iPhone:
  • Double-click the Home button, then swipe up on each app preview to close the apps.
• Turn both devices off together, then restart your iPhone first:
  • Restart your iPhone, iPad, or iPod touch - Apple Support
  • How to restart your Apple Watch - Apple Support

For more accurate tracking of outdoor workouts and to enable proper calibration, check your Location Services settings:

• On your iPhone, go to: Settings > Privacy > Location Services.
• Check that Location Services (the main setting at the top) is turned on.
• In the list of apps beneath, if the option is shown (depending on your Apple Watch model), then check that Apple Watch Workout is set to While Using.
• Also enable options under System Services including Motion Calibration & Distance, Wi-Fi Networking and Mobile Network Search.

Reset your existing calibration data and recalibrate your Apple Watch:

• Calibration can improve the accuracy of estimations made by Activity app and Workout app.
• More information and instructions are available via the link below:
  • Calibrating your Apple Watch for improved Workout and Activity accuracy - Apple Support
• Resetting your calibration data can be equally as helpful for Series 2 & 3 models and will not erase your Activity history.

For the best performance from your Apple Watch - including the most accurate readings from the heart rate sensor, which is used continually during workouts - be sure to wear your it snugly (but not too tightly) during general daily wear and during any workouts. Apple suggests tightening your Apple Watch band before workouts and loosening it again afterwards:

• Wearing your Apple Watch - Apple Support

Check that you are allowing the arm on which you are wearing your Apple Watch to swing naturally during calibration, during relevant workouts and as you move around during daily wear:

• During general daily wear and when using the Workout app to record workouts when GPS data is either not relevant or not available, the Activity app and Workout app track your arm motion (measured by the accelerometer) when estimating results including distance.

If the issue persists, then it may help to unpair and re-pair your Apple Watch:

• The Watch app on your iPhone takes a backup of your watch automatically when unpairing via the app.
• Initially choose to Restore from Backup during set up (most data and settings will be restored, with some exceptions, such as Apple Pay cards, passcode).
• If the issue persists, consider instead unpairing and setting it up as a new watch.
• Unpair your Apple Watch and iPhone - Apple Support
• Set up your Apple Watch - Apple Support

If the issue still persists, then I suggest that you contact Apple Support (remote diagnostics and/or mail-in service may be available, if required), make a Genius Bar reservation or visit an Apple Authorised Service Provider for assistance:

• US: Apple Watch Service Answer Center - Apple Support
• Elsewhere: Select your country for Apple Watch service and repair information

More information:

Get the most accurate measurements using your Apple Watch - Apple Support

Use the Activity app on your Apple Watch - Apple Support

Work out with your Apple Watch - Apple Support