Logic board dispatched, we get down to brass tacks plastic bits. Today's bits feature the speaker and barometric vent.

As we learned last year, this barometric vent allows your iPhone to accurately gauge your altitude, while maintaining a watertight seal.

Another small spec bump: Apple touts that the speakers are 25% louder in the iPhone 8—although there is some debate as to whether it is noticeable.

The same dozen donut speaker holes line the bottom of this iPhone as the 7.

We also find familiar signs of waterproofing in the form of seals and little rubber gaskets.