Our friendship test is nearly finished, but let's fish out the final remaining components.

First on the hook is a second speaker along the top edge of the phone, doing double duty as both an earpiece speaker and a second loudspeaker for stereo sound in landscape mode.

The second catch is the tiny linear actuator vibration motor. Since we've still got all these iPhones laying around, here's a comparison:

The last components in the net are a proximity sensor, a power and volume button cable, and one last interconnect cable.