With macOS Sierra installed, you can now have your Mac unlocked without requiring you to input your password. It will use the enhanced Continuity feature on your iPhone to help you make payments with your Mac. Of course, that does not mean you will have to take your huge Mac to a retail shop to be able to make a payment. With macOS Sierra you can now use Apple Pay on your Mac to pay for your purchases. You will also have an option to launch it with the “Hey Siri” command, so you won’t have to touch your keyboard to activate it.
You can launch Siri on your Mac by pressing the “Fn + Space” key on your keyboard it will be ready to listen to your commands.