Speaker Volume Test: iPhone 6 Plus vs. 6 vs. 5s vs. 5c vs. 5 vs. 4S vs. 4 vs. 3GS vs. 3G vs. 2G [Video]

Speaker Volume Test: iPhone 6 Plus vs. 6 vs. 5s vs. 5c vs. 5 vs. 4S vs. 4 vs. 3GS vs. 3G vs. 2G [Video]

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Really? - January 26, 2015 at 8:06pm
Now how accurate are those meters, they should mix them up and redo the test to see if they get the same or close to the same results. A real scientist would do it this way
Chris - January 26, 2015 at 9:29pm
It's probably the same meter used every time. They probably just edited and merged all the different tests together to make it looks like it was done with a different meter.