try to pair a new iPhone to my Apple Watch did not turn off Apple Watch or unpair it now stuck in paired mode. Apple Watch will not turn off.

Greetings Amazing0304,

We suggest trying to force restart your Apple Watch. This is a great step to take when you're not able to complete a regular restart:

"Force Apple Watch to restart

If you can’t turn off your Apple Watch or if the problem continues, you may need to force your Apple Watch to restart. Do this only if you’re unable to restart your Apple Watch.

To force restart, hold down the side button and the Digital Crown at the same time for at least ten seconds, until the Apple logo appears."

More details here: Apple Watch User Guide - Restart Apple Watch

Thanks for connecting with Apple Support Communities.

Take care!