Here are the 3 missing features that keep Apple's new iPad Pro from really replacing a laptop (AAPL)

Apple's latest iPads still aren't a good substitute for a old-fashioned laptop, no matter how much the company keeps promoting them as the next stage in computers.

Unveiled at the company's press event in New York on Tuesday, the company's newest iPad Pro tablets have super-fast new processors, large and beautiful displays, and its FaceID facial recognition system. They also support a much more functional version of Apple Pencil, the iPad's stylus, and a new and improved keyboard case.

But these new iPads — like all of their predecessors — lack three important features found on just about every laptop on the market for the last 20 years. Without them, they'll have a hard time truly replacing those devices.

Here's what Apple's iPad Pros are missing: