It’s important to know what size of wallpaper you need. This is determined by the screen resolution of the device you want the HD wallpaper for. There are many different resolutions for computers alone, but the most common is 1024x768. And there are different sizes available especially for smaller mobile devices, like iPhones and Android phones. The high resolution images at www.hdwallpaperspics.com are available for all devices, from your phone to your computer to your tablet. This is why it’s important to pay attention to the sizes, because if you choose the wrong size it will not look right.