Apple Watch series 3
My watch is not working. I try to pair it with my phone and reconfigure it and it doesn't work.
Apple Watch Series 3, watchOS 6
User profile for user:
Community User
Set up and pair your Apple Watch with iPhone - Apple Support
Or;
Start by tapping the "I" button on your Watch"bottom right corner", which will bring up your device's name. Then on your iPhone, tap the device name that matches the one displayed on your Apple Watch. You'll see a six-digit code will appear, which you'll enter on your iPhone.