If you’re looking for a new background for your phone or desktop, you might want to consider a 4k wallpaper background download. While this type of wallpaper is more costly than your average desktop background, you can still get one for less than $1. This option is a great choice if you’re looking for something minimalistic. However, if you’d like to find something more realistic, you can also look for an app that does the task for you. Aside from being lightweight, a 4k theme will also be free.