How can I find my Apple phone using my Apple Watch?
How to use Apple Watch to find Apple phone
Apple Watch Series 4, watchOS 7
no, not using your watch.
If you're close to your phone though, you can use the watch to play a tone on your phone..
just pull up to access control center and press the icon that looks like a phone with sound waves
otherwise,
If your iPhone, iPad, or iPod touch is lost or stolen - Apple Support