Drumroll please—it's chip time! Special thanks to the folks at TechInsights for helping scope out this silicon:

Apple 339S00434 A11 Bionic SoC layered over SK Hynix H9HKNNNBRMMUUR 2 GB LPDDR4x RAM

Qualcomm MDM9655 Snapdragon X16 LTE modem

Skyworks SkyOne SKY78140

Avago 8072JD130

P215 730N71T, likely an envelope tracking IC

Skyworks SKY77366-17 quad-band GSM power amplifier module

NXP Semiconductor 80V18 (PN80V) secure NFC module