I have an iphone 7+, and I recently bought a Shure MV88, which is a decent mic with lightning connection. I don't really like using my newer iphone 7+ in a recording environment (guitars/amps moving around) so I'm thinking of buying an iphone 5 or 6, just for the purpose of recording, however, I am wondering if the internal fidelity is going to be better in an iphone 7 vs iphone 5 or 6. Does anyone have any insight into the question of the audio fidelity of iphone 5 vs 7? I know the Shure mic can record @16bit 44.1Khz resolution. My intuition is that since the mic is doing the work and as long as the iphone 5 is capable of handling wav files at that resolution sound files recorded on the two different devices should be identical when played back on other gear, but I'd like a second opinion.