The folks at Chipworks are quite fond of this phone. Directly from the horse's mouth: "This phone is full of brand new components…best Apple release since the first iPhone."

We'll be looking at the:

Apple A6 application processor

Apple 338S1077 Cirrus audio chip

Murata 339S0171 Wi-Fi module

Qualcomm MDM9615 LTE modem

Qualcomm RTR8600 Multi-band/mode RF transceiver