How to set a video file as wallpaper in Galaxy S9|S9+?
• Downloaded and recorded video file can be set as video wallpaper.
Note: Video file should not be over 100MB and playing time should be less than 15 seconds.
• When your device entering a lock screen mode, the video wallpaper will be played automatically.
• Also, you can download video wallpaper from Samsung Themes.
Below are the steps to add Video File as Wallpaper.