@wolfetone
If you had proper reading comprehension, you'd understand I was pointing out that that quarter was an example of how the iPhone 6's sales figures were such a huge jump of the 5S's due to all that pent up demand for a larger iPhone and for China Mobile support.
That's why Apple saw sales fall with the 6S - they "regressed to the mean" as it were because there was never any chance that it could match the 6's sales figures, because there are no longer any large sources of untapped demand. The addition of any other "innovations" from the Android world like wireless charging, a stylus, a removable battery, an SD card slot, etc. would not move the needle in a measurable way.