Black wallpapers give your iPhone an elegant look. Some people prefer a black background for aesthetic reasons. Also, on an OLED screen, black wallpaper improves battery life and focus ...

Apple includes some pretty nifty wallpapers for its mobile devices as part of iOS, and the iPhone is famous for having some of the most beautiful and unique wallpaper designs on the planet.

By creating an iPhone wallpaper that was just one pixel in size, an iPhone would stretch it to cover the entire screen and some interesting effects would be displayed as a result. Namely ...