The default wallpapers for the Samsung S21 Ultra are a mix of abstract designs, landscapes, and textures. They feature vibrant colors and sharp details that really pop on the phone's OLED display. Some of the wallpapers are also interactive, meaning they change as you swipe between home screens.

If you want to customize your wallpaper with your own images, you can do so easily using the built-in wallpaper settings. Simply select "Wallpapers and themes" from the Settings menu and then choose "Wallpaper." From there, you can choose an image from your gallery or from a selection of pre-installed wallpapers.

One feature of the Samsung S21 Ultra wallpaper settings is the ability to create a custom dynamic wallpaper. This allows you to use a video or GIF as your wallpaper, which will play on a loop in the background of your home screen. You can even set a different dynamic wallpaper for each home screen panel, creating a unique and personalized look for your device.

Overall, the Samsung S21 Ultra offers a range of high-quality wallpapers and customization options to help you make your device truly your own.