Q: Can not copy the Apple Watch serial number from iphone

Hi

If you would like to suggest that Apple considers enabling that information to be copied and pasted, you can do so here:

https://www.apple.com/feedback/watch.html

(You are not talking to Apple here - this is a user-based community).

You may wish to take a screenshot and use that for your records:

• Press and hold the Sleep/Wake button on your iPhone, then immediately press and release the Home button.
• The screenshot will be added to Photos automatically.

How to take a screenshot on your iPhone, iPad, and iPod touch - Apple Support

Hi,

On your Apple Watch, there are two places you can find the serial number.

Check the back of the watch for the engraved serial number.

Or press the Digital Crown to go to the Home screen, then tap the Settings app. Tap General > About and scroll down.

For other Apple products >  Find the serial number of your Apple product