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Summary resultsiPad Mini RetinaiPad AirGoogle Nexus 7Kindle Fire HDX 7

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100% (white, in nits)432.47441.64557.04448.36

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0% (black, in nits)0.49790.39430.44770.2855

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Contrast Ratio868.591,120.061,244.231,570.44

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Grayscale error2.4971.7662.5108.989

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Color error20.46016.30517.76616.483

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Red error18.773817.311519.712416.0599

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Green error13.448716.071915.187214.2838

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Blue error39.091518.561323.064322.9348

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Explanation: In the table above, higher is better for 100% white and contrast ratio. For 0% black and error numbers, lower is better. The numbers above are derived from the measurements below. For more, refer to CNET's iPad Mini Retina Review:

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http://reviews.cnet.com/apple-ipad-mini-retina-display/

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Raw measurements

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iPad Mini Retina0102030405060708090100

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DELTA 2000 GRYSCL >1.45931.43671.26791.65491.97762.57452.87083.29563.38653.61263.9264

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LUMINANCE cd/m2 >0.49793.247712.5730.67456.39192.192136.52192.36257.21339.51432.47

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REDGREENBLUECYANMAGYELL

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DELTA 2000 COLORS >4.314118.773813.448739.091515.938122.204613.304715.5725

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iPad Air0102030405060708090100

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DELTA 2000 GRYSCL >1.91041.39030.97821.21361.5241.77371.99482.08172.31292.05092.1997

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LUMINANCE cd/m2 >0.39432.57312.1931.52858.39695.864142.64199.98266.9353.06441.64

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REDGREENBLUECYANMAGYELL

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DELTA 2000 COLORS >2.717117.311516.071918.561315.405815.195915.286114.68

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Google Nexus 70102030405060708090100

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DELTA 2000 GRYSCL >1.3531.42841.48470.96161.85661.97862.65332.56313.95774.37934.9901

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LUMINANCE cd/m2 >0.44776.750820.39643.47673.989118.23179.09250.49330.75436.15557.04

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REDGREENBLUECYANMAGYELL

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DELTA 2000 COLORS >3.755919.712415.187223.064315.815817.934514.884715.9469

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Amazon Kindle Fire HDX 70102030405060708090100

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DELTA 2000 GRYSCL >0.3883.59547.19248.99.308810.375711.180811.408412.35512.266611.9132

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LUMINANCE cd/m2 >0.28553.221715.50537.76468.473110.64161.29222.01292.26371.91448.36

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REDGREENBLUECYANMAGYELL

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DELTA 2000 COLORS >13.327916.059914.283822.934816.637615.42913.555118.3981

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Methodology: These measurements were taken with the tablets' screens at full brightness and the test patterns at full screen, using the same methodology as described in the article below. See the other tabs for charts with the data from which these measurements were copied.

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http://www.cnet.com/8301-17918_1-57531239-85/screens-test-apple-iphone-5-vs-samsung-galaxy-s3/