cannot connect apple watch series 5 to my iphone xs max
cannot connect iphone to watch series 5 xfinity service
cannot connect iphone to watch series 5 xfinity service
What happens when you try the steps in:
Set up your Apple Watch - Apple Support
Where does it fail? Any error messages, etc.?
Without any other info, perhaps this article will help:
If your Apple Watch isn't connected or paired with your iPhone - Apple Support
cannot connect apple watch series 5 to my iphone xs max