Help and Support for
Apple Watch Series 12
watchOS 27
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I can't use mobile data on my Apple Watch Series 12 watchOS 27
Cause 1 of 5: Your Apple Watch isn't correctly set up for mobile data.
Several functions on your Apple Watch use mobile data, e.g. when making or receiving calls, sending email messages and listening to the radio.
Solution: Set up mobile data on your Apple Watch.