Each of these 4K wallpapers (that's 3840x2160, pixel fans) has been set to a desktop-friendly 16:9 aspect ratio, and with minimal compression so they look super sharp on your monitor.

The idea is to share astonishing wallpapers gathered from around the web by members of the TechSpot staff. Most of these are good to use with your 4K desktop, laptop display or smartphone.

The idea is to share astonishing wallpapers gathered from around the web by members of the TechSpot staff. Most of these are good to use with your 4K desktop, laptop display or smartphone.

Mario and Sonic at the Rio 2016 Olympic Games wallpapers for 4K, 1080p HD and 720p HD resolutions. Download here for free! Mario and Sonic are among two of the most popular video game characters ...