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VO2max not working on WatchOS8

Once again, Apple Watch VO2 Max stops working for no apparent reason. Unpair and pair yet again?


Apple Watch Series 6

Posted on Mar 2, 2022 5:21 PM

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Question marked as Top-ranking reply

Posted on Mar 2, 2022 6:03 PM

The first (and simplest) thing to try if something isn’t working right is to restart your Apple Watch and its paired iPhone. If necessary (device not responding), try a forced restart. Both methods can be found here:

How to restart your Apple Watch - Apple Support

Restart your iPhone - Apple Support


If that doesn't help, the next steps would be to unpair and pair your watch again and restore from the backup just created. This should result in no loss of data. It deletes all temp and corrupted files and re-indexes the file system.

Unpair and erase your Apple Watch - Apple Support

Set up your Apple Watch - Apple Support


2 replies
Question marked as Top-ranking reply

Mar 2, 2022 6:03 PM in response to John CO

The first (and simplest) thing to try if something isn’t working right is to restart your Apple Watch and its paired iPhone. If necessary (device not responding), try a forced restart. Both methods can be found here:

How to restart your Apple Watch - Apple Support

Restart your iPhone - Apple Support


If that doesn't help, the next steps would be to unpair and pair your watch again and restore from the backup just created. This should result in no loss of data. It deletes all temp and corrupted files and re-indexes the file system.

Unpair and erase your Apple Watch - Apple Support

Set up your Apple Watch - Apple Support


VO2max not working on WatchOS8

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