#retina

This claim emerged along with the announcement of the iPhone 4 which, because of the nature of its display, was marketed as having a “Retina Display”. Raymond Soneira of DisplayMate, who argues that the Cupertino-based company’s claim is exaggerated and that a human retina has a higher resolution. According to him, for a display to be considered “Retina”, it needs to have a pixel density of 477ppi at 12-inches away or should be held a foot and a half away in the case of the iPhone 4. Soneira’s claims has been regarded as technically correct, there are others like Bryan Jones, a Retinal Neuroscientist and University of Utah professor, who agrees with Apple’s Retina Display claim. He comprehensively explained his take on the matter on his blog and pointed out that “Soneira’s claims are based upon a retinal calculation that is too low”. PPI Fad Since 2010, companies have been pressured to come up with a display that can compete with the Retina Display of the iPhone 4. Read more in our articles including "Pixel Density: Feature or Gimmick?" and "Qualcomm Snapdragon 6 Gen 5, Snapdragon 4 Gen 5 announced".