During initial setup, you should receive a prompt to set up your watch to make and receive calls. If you don’t see this prompt, check the notification drawer for Phone Setup notification to start the setup. You can also go to the Phone app on your watch, and it should launch the prompt for phone setup. Follow the instructions to enable phone functionality. If you still don’t see the prompt, you can initiate setup by opening Settings in the Phone app on your watch, tapping Troubleshooting, and following the steps there.
Once you finish setup, you can reject or receive incoming calls or place a call, directly from the watch. Please note, using your watch for calls can consume battery at a faster rate.