Use Intelligent Scan Lock on Your Galaxy S9|S9+
Intelligent Scan Lock is a screen lock type for your Galaxy S9 and Galaxy S9+. It works by capturing biometric security data from your Irises as well as facial recognition data. It then combines this information so you can unlock your phone with just a look. You will also need to setup a backup form of screen lock like a pin, pattern or password lock in order to use Intelligent Scan Lock.