Lenovo's conceit for the Yoga Book 9i laptop'ditch the keyboard and replace it with a second touchscreen'has been done before, but never very well. Arguably the best example to date anywhere along these lines has been the HP Omen X 2S, which featured a miniature display mounted above a physical keyboard, but it was a decidedly niche idea designed for gaming and priced at nearly $3,000 at launch. It never gained much traction. Now it's Lenovo's turn to take a trip down this road, and it may be the most ambitious, and successful variation to date. With the Yoga Book 9i, 'second screen' means a full screen. There's no keyboard here at all; the lower half of the laptop is a touchscreen identical to the upper half. Take two 13.3-inch OLED displays and sandwich them together with a hinge in between and you've got the idea. Lenovo has done a hefty amount of engineering to make this work, and while there are a few rough edges, for the most part, it's a success. Naturally, you're free to use...
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