Tablet Lenovo Yoga Book YB1-X90F is different from most other mobile devices. Its swivel screen is not supplemented by a keyboard, but a touch panel that recognizes 2048 levels of pressing force. The body of the Yoga Book is a true masterpiece. Its frosted metallic finish matches perfectly with a multi-link hinge decorated with decorative gears. Under this shell are modern components - Intel Atom processor 4 cores and 4 GB of RAM. Their capabilities are enough to work with any gaming and multimedia applications in multitasking mode. The screen of the device is based on a high-resolution IPS-matrix, which creates a detailed image with bright saturated colors and great contrast. The built-in audio system that supports Dolby Atmos technology reproduces pure surround sound no matter where the signal is directed - to the built-in stereo speakers, connected headphones, or even speakers. The tablet allows you to engage in creativity and work on long journeys. The high-strength magnesium-aluminum alloy casing protects the internal components from damage and removes excess heat in a timely manner. The capacity of a standard battery is enough for a device for 15 hours of active use of all functions or more than 2 months of work in standby mode. The device also allows you to connect to the Internet without fixed access points - it can connect to high-speed 3G / 4G networks. The shell of the operating system BOOK UI extends the capabilities of the touch screen and writing pad. It allows you to divide the screen into several parts to simultaneously run different applications, as well as copy text or pictures with simple gestures.