my phone does not detect my apple watch

Restart your iPhone.

1. Press and hold the Sleep/Wake button until the red slider appears.
2. Drag the slider to turn your device completely off.
3. After the device turns off, press and hold the Sleep/Wake button again until you see the Apple logo.

Then restart your Apple Watch

1. Press and hold the side button until you see the Power Off slider.
2. Drag the slider to turn off your device.
3. After your watch turns off, press and hold the side button again until you see the Apple logo.

Then pair > Set up your Apple Watch - Apple Support

Hi

Try the following steps:

- On your watch, go to: Home screen (via a single press on the Digital Crown) > Settings (cog icon) > General > Reset > Erase all Content and Settings.

You should then be able to pair your watch via the standard process:

Set up your Apple Watch - Apple Support