There's a Touch ID fingerprint sensor embedded in the power button at the end of the Touch Bar.

It comes in this new color called Space Gray.

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It comes in two sizes: 13-inch or 15-inch.

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There's also a cheaper model of the 13-inch MacBook Pro that has traditional function keys instead of the Touch Bar. It starts at $1,499.

The 13-inch model with Touch Bar starts at $1,799.

The 15-inch model with Touch Bar starts at $1,999.

There are no traditional ports. Instead, there are new ports called Thunderbolt 3.

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Thunderbolt 3 is used for everything: charging, connecting accessories, and video output to external displays. It also works with the new USB-C standard that's starting to show up in more gadgets.

There's also a traditional headphone jack.

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The Thunderbolt ports mean you'll have to buy new cables and adapters to connect your gadgets.

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Apple decided to temporarily slash prices on USB-C accessories to help ease the transition to the new standard.

The trackpad is much larger than before.

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But the real story here is the Touch Bar. It's a touchscreen at the top of the keyboard that replaces traditional function keys with digital keys.

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The Touch Bar keys change depending on the app you're using. Let's check out a few examples of how that works.

Here's the standard view for function keys. You can customize the keys on the left side of the screen.

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There's a dedicated button for Siri on the far right.

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You can expand the buttons on the right side of the Touch Bar to bring up the standard function keys like brightness and volume controls.

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In Safari, you see forward/back buttons, a search bar, and a button to launch a new tab.

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When you launch a new Safari tab, you get buttons that let you launch your favorite bookmarks.

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When watching a video on the web, a controller pops up that lets you play/pause or scrub through video.

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In Mail, there are lots of clever function keys. You can quickly sort through mail or change the formatting of your messages.

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Photos gives you a bunch of standard editing tools for cropping, adding filters, and more.

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You can also get a preview of what your photo will look like on the Touch Bar before you apply a filter.

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The Touch Bar can suggest words as you're typing. It's a little odd though since most people are looking at the main display while they type. On the other hand, it doubles as a handy spell checker.

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You can access all your emojis right from the Touch Bar in iMessage.

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