A free program for Android, by 4K4U.

If you want to enjoy high-quality live wallpapers at a low memory size, you’ve found the right app!

4K Rainbow Live Wallpaper has the best video quality, and the best performance, which means it will not affect your battery life. The resolution will be automatically adjusted to fit your screen size, and the video wallpapers can be used as a background for all your apps.

If you want to use the best quality video wallpapers, you’ll find a variety of different themes in the app. The themes are all designed in high-definition quality, and you can choose the one you like best.