Google confirms dark mode is a huge help for battery life on Android

We’ve known for a long time that dark mode / night mode apps can prolong battery life on smartphones with OLED screens. It’s true on Android, and it’s true with the iPhone. This is because the individual pixels have to do less work on dark areas of the screen, and they use practically no juice at all when displaying true black.
Read more: https://www.theverge.com/2018/11/8/18076502/google-dark-mode-android-battery-life?source=Snapzu