I was wondering what will sound better to the people you talk to (on their end). The Mic is on the bottom of the phone from what I can tell. I was thinking since the 6 is smaller that the mic is slightly above your mouth and your voice might travel more unencumbered. But then the 6 Plus might actually receive your voice easier being below your mouth, however it also has part of the phone in the path of your voice. Thoughts?