Install for Lift to Wake
The Galaxy A series Android Pie update comes with an extremely useful Lift to wake feature. It's arguably the best feature on board Samsung's upgrade.
Android Pie's Lift to wake feature lets you to check your lock screen for notifications by raising the phone to your face.
With the feature is toggled on, your device will start scanning your eyes or face whenever you lift the device up.
If you use your face to unlock your phone you'll really like this feature because you no longer have to press the power button to turn the screen on.
After you get the Android Pie update on board you should find the toggle in Advanced features > Motions and Gestures in the Settings app.