How to Set Up the Auto-Unlock Feature
If you have an Apple Watch and a Mac computer, you can unlock your Mac just by being nearby while wearing your Apple Watch, with no need to enter a password. Your Mac must be connected to both Wi-Fi and Bluetooth, and both the Mac and Apple Watch are signed in to iCloud using the same Apple ID. For Auto-Unlock to work, your Apple ID must require two-factor authentication, and both your Mac and Apple Watch must be set up to require a passcode.
If You’re Having Trouble
The Auto-Unlock feature has quite a few requirements, so if you don’t see the option to Allow your Apple Watch to unlock your Mac, it means one or more conditions haven’t been met. Check your system requirements, make sure you have two-factor authentication set up, and check to see if both devices are signed in with the same Apple ID and use passcodes.
