And now, for the moment we've all been waiting for... It's time to reveal some ICs on the front of the logic board:

Apple A9 APL0898 SoC + Samsung 2 GB LPDDR4 RAM (as denoted by the markings K3RG1G10BM-BGCH)

Qualcomm MDM9635M LTE Cat. 6 Modem (vs. the MDM9625M found in the iPhone 6)

InvenSense MP67B 6-axis Gyroscope and Accelerometer Combo (also found in iPhone 6)

Bosch Sensortec 3P7 LA 3-axis Accelerometer (likely BMA280)

TriQuint TQF6405 Power Amplifier Module

Skyworks SKY77812 Power Amplifier Module

Avago AFEM-8030 Power Amplifier Module