Ever since , Apple introduced the Ratina Displays with the iphone 4 , pixel density as a specification has aquired a pride of place in marketing jargons. What started on phones only , is now also used to differentiate tablets as well as laptops. But is it just a gimmick or should it be prime cosideration before your get your mobile phone , tablet or laptops?
If you don't know how pixel density is calculated or if you're too lazy to do the math head to pixeldensitycalculator.com just fill up the details and get ppi for any screen. Increasing the number of pixels on your device will improve the quality no doubt, but beyond a point the human eye cannot really resolve individual pixels. For instance taking Apple products the pixel density for iPhone 4/4s/5/5s is 326 ppi , third generation iPad is 264ppi and that of the 13-inch Macbook Pro is 227 ppi. The numbers are different for these devices as they are used at different distances. The phone is used at a closer distance from the eye , hence a higher pixel density . Tablets are used at comparatively farther distance hence a lower pixel density. If you thought Apple's numbers were high the 5-inch HTC one has a whopping 469 ppi and samsung has announced a 13.3 inch display with a 267 ppi which equates to a resolution of 3200*1800 pixel!
If you don't know how pixel density is calculated or if you're too lazy to do the math head to pixeldensitycalculator.com just fill up the details and get ppi for any screen. Increasing the number of pixels on your device will improve the quality no doubt, but beyond a point the human eye cannot really resolve individual pixels. For instance taking Apple products the pixel density for iPhone 4/4s/5/5s is 326 ppi , third generation iPad is 264ppi and that of the 13-inch Macbook Pro is 227 ppi. The numbers are different for these devices as they are used at different distances. The phone is used at a closer distance from the eye , hence a higher pixel density . Tablets are used at comparatively farther distance hence a lower pixel density. If you thought Apple's numbers were high the 5-inch HTC one has a whopping 469 ppi and samsung has announced a 13.3 inch display with a 267 ppi which equates to a resolution of 3200*1800 pixel!
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