Testing Speakers using Android Phone?

I have been using my Android Device (Samsung Grand Prime) for recording test tones from my speakers and analysingthe recording using Audacity.

Results here: http://www.diyaudio.com/forums/multi-way/287392-new-enclosures-pc-speakers-3.html#post4660593
I use the JBL Tools app for measuring the sound pressure levels.

Question is, if I post the results here, will it convey useful information to the members of this forum, to let you know what the speakers sound like and how good they are?

http://www.diyaudio.com/forums/equi...ard-measuring-loudspeakers-2.html#post4662584

Of course I could go for the PC mic input and connect one of those specialist microphones for sale on Ebay?

See this thread

Ectet mike like this one?

10pcs 6*5mm Capacitive Electret Microphone 55-58D Sensitivity
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