How does my Apple Watch backup when unpairing if iCloud storage is full?

I want to unpair my daughter's Apple Watch from my phone (we used Family Setup), and when I watched tutorials online, it seems that a backup is created of the watch's data to iCloud.

The issue is, she has used up the 5GB of iCloud data linked to her account, so I am wondering if the data will be lost, or how a backup will be created.

We don't want to lose any of her data, so any help is appreciated.

Apple Watch SE, watchOS 10

Posted on Oct 20, 2025 5:07 AM

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Posted on Oct 20, 2025 7:18 AM

If you used "Apple Watch for Kids" to set up the Apple Watch, the backup is stored directly in iCloud:

...

...

copied from: Back up your Apple Watch - Apple Support

If the free storage space iCloud is not enough, the watch will stop creating backups.

Can she share iCloud+ storage space with the family, in case you are using Family Sharing?

Share iCloud+ with your Family Sharing group - Apple Support

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Oct 20, 2025 7:18 AM in response to cardboardphone

If you used "Apple Watch for Kids" to set up the Apple Watch, the backup is stored directly in iCloud:

...

...

copied from: Back up your Apple Watch - Apple Support

If the free storage space iCloud is not enough, the watch will stop creating backups.

Can she share iCloud+ storage space with the family, in case you are using Family Sharing?

Share iCloud+ with your Family Sharing group - Apple Support

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How does my Apple Watch backup when unpairing if iCloud storage is full?

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