The Surface Book is the first ever laptop from Microsoft, and it has a 13.5 inch detachable screen that becomes a tablet. It uses a new hinge that Microsoft has dubbed "Muscle Wire™" that holds the screen in place securely, while still having the ability to detach with the push of a button. It can be used in three different configurations as a result -- as a traditional laptop, as a tablet, or with the screen attached the other way around.
Microsoft's Surface Book also comes with the Surface Pen, allowing you to write and draw directly on the display. It combines 1,024 levels of pressure sensitivity with low latency to better simulate the feeling of writing on paper.
Microsoft Surface Book weighs in at 3.34 pounds when the keyboard is attached. It has a display resolution of 3000 x 2000 at 267 PPI. It runs on a 6th gen Intel Core i5 or i7, and can be configured with either 8GB or 16GB of RAM. It has either i5 Intel HD graphics 520 or a discrete NVIDIA GeForce GPU with 1GB memory.
Surface Book has two full-size USB 3.0 ports, a full-size SD card reader, and Mini DisplayPort. Surface Book has two cameras -- a 5.0 MP front-facing camera, and an 8.0 MP rear-facing camera. Solid state storage options range from 128GB to 1TB of space. Surface Book starts at $1,499.