We're pleased the headphone jack is back, even if it is hanging out all by itself. (Two ports plus a headphone jack still feels a bit stingy on a "Pro" machine, right?)

By now, the opening procedure is old hat. Dispatching a handful of pentalobe screws and clips lets us peer into a MacBook Pro that looks ... surprisingly similar to the older function key model, actually.

The new 58.2 Wh battery capacity slightly exceeds the 54.5 Wh battery found in the old function key model. Maybe that's how it keeps up with the added Touch Bar, Touch ID sensor, and T2 chip while keeping the same 10-hour battery life.

It even bests the 58.0 Wh battery in the more expensive 13" model—which has more cores and TDP to power.