updated iPhone Xs won't pair with my apple watch se at all
new apple watch SE won't initially pair with iPhone Xs
new apple watch SE won't initially pair with iPhone Xs
See the following Apple articles:
Set up your Apple Watch -> Set up your Apple Watch – Apple Support (UK)
The Apple Watch app -> The Apple Watch app – Apple Support (UK)
Apple Watch user guide -> https://books.apple.com/book/id6442854652
Related Article: If your Apple Watch isn't connected or paired with your iPhone
updated iPhone Xs won't pair with my apple watch se at all