Install for Night Mode
Night Mode is one of our favorite changes coming in Samsung's new One UI and it's a great reason to try Android Pie on your Galaxy Note 9 right now.
When Night Mode is active, your Galaxy Note 9's screen should be a lot easier on the eyes. The new mode will also help you conserve battery life.
When Night Mode is active you'll also notice changes across the user interface. Most stock Samsung applications are compatible with Night Mode.
You can manually turn Night Mode on whenever you want to use it. You can also schedule when you want the device to turn Night Mode on and there's also a way to set it so the device automatically turns it on when you're in the dark.