But I think you misunderstand. I have a Zoom H2 for somewhat reasonable sound, plus mixers and PA equipment. I'm not going to drag my mics, racks of gear and bins of xlr's to a concert I'm going for fun. The point I'm trying to make is that my iPhone, though not the last word in sound quality by any means, did a far better job of capturing concert level sound than the Galaxy S5, and we're comparing it with a couple generations old iPhone 4s! That's why I used the word, "automagically" in my first post, because I don't know what sort of compressor/limiter/processing is going on in that phone for it to work as well as it does.
When I shoot with my dSLR, I have a Tascam recorder than has all the ins and outs and settings I'll ever need. When I'm seeing The Feelies at the Sinclair, I just want to hold my phone and grab a few clips for my wife, who couldn't make it, without it sounding like crap. My iPhone didn't sound like crap nearly as much at those SPL's and it didn't muffle the high's.
It's clear, that since I like this phone very much otherwise, that I'm going to have to compromise with some sort of tacky add-on phone mic. I'll ask a buddy who uses his android (an HTC) to EQ rooms with a calibration mic.