Sizes diagonal resolution ppi (pixe/inch) in inch iPod touch 123x58 mm (4 ) 1136x640 (326 ) iPhone 5 123x58 mm (4 ) 1136x640 (326 ) iPad mini 200x134 mm (7.9 ) 1024x768 (163 ) iPad 241x185 mm (9.7 ) 2048x1536 (264 ) MacBook Air (11.6) 1366x768 MacBook Air (13.3) 1440x900 MacBook Pro (13.3) 2560x1600 (227 ) MacBook Pro (15.4) 2880x1800 (220 ) Nexus 4 (4.7 ) 1280x768 (320 ) Nexus 7 (7 ) 1280x800 (216 ) Nexus 10 (10 ) 2560x1600 (300 ) Samsung Galaxy Y GT-S5360 (3 ) 320x240 (133 ) Samsung S 4 (5 ) 1920x1080 (441 ) Galaxy Tab 2 (10.1) 1280x800