iFixit

For comparison, here's a link to last-year's iPhone disassembly.

Our predictions:

Apple-labeled Samsung processor. [correct]

Either some kind of GPS chip, or none at all. If there isn't a GPS chip, then it could be built into the processor. [Turns out it's an Infineon chip]

Lots of chips with only Apple markings on them. Sometimes we can tell what they are, but most of the time you have to take the chip itself apart first. [correct, but this one's cheating]

Removing the display!