Google Pixel Watch 2
I can't use mobile data on my smartwatch
Solution 1 of 4: Your smartwatch isn't correctly set up for mobile data.
You can set up mobile data on your smartwatch allowing you to make and receive calls and use apps without being connected to your phone.
Slide your finger downwards starting from the top of the screen.
Press the settings icon.
Press Connectivity.
Press Mobile.
Press Mobile.
Press Automatic to turn on mobile data.
On your phone: Press Watch.
On your phone: Press Mobile network.
On your phone: Follow the instructions on the screen to set up mobile data.