How to connect to phone on apple watch
How to connect phone to apple watch
Question marked as
See How to pair your Apple Watch with a new iPhone - Apple Support
If that does not help You have not given us enough information to help in detail.
Please post again these details:
The Model of Watch eg Series 7, SE 2022
The OS it is running, eg OS9.4 (Settings, General, About if you can see it)
The model of the paired iPhone eg iPhone 11
The iOS it is running eg iOS16.4 (Settings General, About)
State what you are trying to do and tell us what is happening, what do you see, are there any error messages?