There's nothing quite like the Lenovo Yoga Book. It's a small, lightweight clamshell device running your choice of Android or Windows 10 as an OS. Take a tour of the hardware and you'll find a 360-degree hinge, a screen and, uh, no keyboard. That's right, instead of where the keyboard deck would be is a flat-touch sensitive surface that doubles as a digital notepad and sketchpad. It works as a keyboard too, except the buttons, as it were, are all virtual, ready to disappear when you're done using them.

The design is nothing if not inventive, and Lenovo deserves credit for that, but it's almost ahead of its time. That or just not very well executed. While digital artists might enjoy the doodling features, our reviewer was never able to master the keyboard. Even when she learned to type accurately, she could never do so quickly. And that's a problem for a $500-plus device designed for being productive on the go. For that, you may as well buy, you know, a laptop.