No cellular signal on Apple Watch Series 3
Can‘t make calls or text with watch when away from my phone. How can I fix this?
Can‘t make calls or text with watch when away from my phone. How can I fix this?
Check setup info in Set up and use cellular on Apple Watch Series 3 (GPS + Cellular) - Apple Support
On the Watch, go to Settings>Cellular and make sure that your carrier is connected. Then when away from the phone, go to Control Center on the Watch and make sure that you have cellular signal before you attempt to make a call.
No cellular signal on Apple Watch Series 3