So lets end this iPad 'heatgate' discussion once and for all

http://www.macworld.com/article/116...eat_levels_comparable_to_android_tablets.html

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so “heatgate.” we’ve seen reports week indicating new ipad runs hotter predecessor, ipad 2. new ipad run hotter other tablets?

answer question, took our trusty thermometer in hand , ran series of tests pitted apple’s latest tablet against ipad 2 , 2 popular android tablets—the asus eee pad transformer prime , lte version of samsung galaxy tab 10.1. our results reassuring potential ipad purchasers. though new ipad did run hotter ipad 2, difference wasn’t great. , in repeated lab tests of new ipad, not replicate disturbingly high temperatures sources have reported. more important, new ipad not dramatically warmer either asus eee pad transformer prime or samsung galaxy tab 10.1 lte, though battery has substantially higher milliampere-per-hour (mah) rating theirs (11666mah new ipad, versus 7000mah galaxy tab 10.1 , 6930mah transformer prime).

though our tests not definitively address question of whether hotter temperatures pose risk ipad’s longevity, suggest heightened sense of alarm on part of users , prospective users unwarranted. many mobile devices toasty—and hotter top temperature of 100 degrees fahrenheit recorded on new ipad. instance, quick in-office test of three-year-old aluminum macbook laptop running basic office tasks registered 108 degrees fahrenheit; , on-lap toshiba portege r700, after running 30 minutes, clocked in @ 112 degrees.

how tested
using raytek raynger st-handheld infrared thermometer, took multiple temperature readings on both front face , of each tablet, measuring temperature @ tablet’s center, @ charging port, , on back. took set of baseline readings (not reproduced in chart below) when tablet turned off; set of readings when tablet had been on idle 5 10 minutes; , third set when tablet had been on 1 hour while continuously playing vector unit’s graphics processor-intensive riptide gp game. kept wi-fi on throughout testing, , room’s ambient temperature comfortable , controlled. conducted series of tests first each unit plugged in , charging, , each unit running solely on battery power.

test results consistent our casual experiences while using these tablets: raytek thermometer revealed each tablet has own particular hot point, , in instances tablet’s front can warm back. in addition, noted temperatures tended run higher when tablets plugged in when running on battery power.

new ipad vs. old
when turned off charging, new ipad registered temperature of 76 degrees fahrenheit on center of tablet. temperature @ same spot rose 86 degrees after device had been on 5 10 minutes idle; maximum-heat spot on registered @ 92 degrees under these conditions. after playing riptide gp 1 hour, tablet had maximum temperature reading on of 100 degrees fahrenheit (94 degrees @ center). though consumer reports , other outlets reportedly recorded temperatures high 116 degrees, unable push new ipad’s temperature beyond century mark.

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