Apple Watch cardio fitness data not synchronizing

Hi Community fellows,


I would like to know is some changed recently in apple watches, as my cardio fitness data is not synchronized any more. Although all other data is synchronized in the real time

Apple Watch SE, watchOS 26

Posted on Nov 29, 2025 3:34 PM

Reply
Question marked as Top-ranking reply

Posted on Nov 30, 2025 2:40 AM

Did you already try to force restart your iPhone and Apple Watch?

Force restart iPhone - Apple Support

To force restart your watch, press and hold the Digital Crown and the Side button together for about 10sec, until the Apple logo comes back again.


If this does not work, and to rule out a software issue, erase the watch and pair it again, setting it up as a new device. You will only lose your created Watch faces and may have to activate the cards in your Wallet app again.

Then check the cardio fitness data in the Health App again, after recording an Outdoor Walk or Outdoor Run.

Unpair and erase your Apple Watch - Apple Support

3 replies
Question marked as Top-ranking reply

Nov 30, 2025 2:40 AM in response to masalman

Did you already try to force restart your iPhone and Apple Watch?

Force restart iPhone - Apple Support

To force restart your watch, press and hold the Digital Crown and the Side button together for about 10sec, until the Apple logo comes back again.


If this does not work, and to rule out a software issue, erase the watch and pair it again, setting it up as a new device. You will only lose your created Watch faces and may have to activate the cards in your Wallet app again.

Then check the cardio fitness data in the Health App again, after recording an Outdoor Walk or Outdoor Run.

Unpair and erase your Apple Watch - Apple Support

Apple Watch cardio fitness data not synchronizing

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