Unlock your Mac with your Apple Watch - Apple Support

While you’re wearing Apple Watch, your Mac can sense when you’re nearby and automatically log you in. You can also use Apple Watch to approve other requests for your administrator password. 

Use your iPhone as a webcam on Mac - Apple Support

Set up your Apple Watch - Apple Support (CA)

About notifications - Apple Support

Add podcasts to Apple Watch - Apple Support

Reply to messages on Apple Watch - Apple Support

If Touch ID isn't working on your Mac - Apple Support

The Continuity Camera and 'Unlock With Apple Watch' Conspiracy

How to Unlock Your Mac With Your Apple Watch - MacRumors

How to unlock your Mac with an Apple Watch

Using an Apple Watch with Luna Display - Knowledge Base

Unlock your Mac and approve requests with Apple Watch - Apple Support

Getting “Unlock with Apple Watch” to Work on Your Mac- The Mac

Can't Unlock Your Mac with Apple Watch? Here is the Fix