The display is a 10.1-inch FHD (1920x1200 per Lenovo’s spec) IPS touch display, with 400-nit maximum brightness. It looks great, but note that a screen this high-res and this small means icons and text will be tiny (you can adjust the sizes for better visibility).
Inside you’ll find a very basic computer: an Intel Atom x5-Z8850 CPU with 4GB of LPDDR3 memory and 64GB of eMMC storage. I started to benchmark the Yoga Book and just stopped after a few results, because guess what? It can’t play Crysis. It can handle browsing and using a few applications at once, but don’t overload it. The meager memory filled up, especially given the way I accumulate browser tabs. Under heavy use, it also tended to get warm in the upper margin of the bottom panel, near the middle of the hinge.
Lenovo says the 8500 mAh battery should last up to 13 hours. That may be true for a situation where the Yoga Book is used for lighter tasks with sporadic breaks. In our intensive video rundown test (with brightness set to 250 nits and headphones attached for audio), it took 7 hours and 39 minutes to drain the battery to a scant 13% capacity, at which time it projected another hour or so of use.
What the Yoga Book lacks in sheer performance, it makes up for in innovation. It opened my eyes to the possibilities of Windows’ touch capabilities. I see it as a more productive alternative to a tablet, or as a supplementary PC—something easier to take to a meeting than my full laptop. But while productivity can be quantified, creativity cannot be—and it’s the Yoga Book’s encouragement of the latter that points in a very interesting new direction for Windows devices.
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