Size Thumbnail.
  • Retina 640x960
    Newer iPhones (4+), newer iPod touches.
  • HVGA 320x480
    Older iPhones (1, 3G, 3GS), older iPod touches, several feature & smartphones.
  • WVGA 480x800
    Most Android and Windows Phone 7 phones, HTC Incredible, others.
  • WVGA+ 480x854
    Motorola Droid 1, Droid X, Defy, XPeria, other long-format smartphones.
  • iPad 1024x1024
    All 2010 and 2011 iPads.