How do I make a video my wallpaper?
Make a Video Your Wallpaper on Android
Newer versions of Android allow you to create live wallpapers natively, as well. Long press on the Home screen > Wallpapers > Select from Gallery, My wallpapers, or wallpaper services > find the video wallpaper you want to use and apply. Install Video Live Wallpaper.
How do I get a moving background on my iPhone?
Go to Settings > Wallpaper > Choose New Wallpaper. Select “Live Photos” and then the live photo you just saved. Position the GIF how you want it and then tap “Set.” You can choose whether you want it to be on the Lock Screen, the Home Screen, or Both.