The Surface Book 2 is a high-end convertible laptop from Microsoft with a detachable screen that can operate as a standalone tablet. When detached, the 15 inch tablet is remarkably light. On the Surface Book 2, the screen can be folded back flat, which enables the devices to use the full processing power available. Microsoft says the Surface Book 2 has been designed to deliver performance and versatility without compromise. As such it features the latest Intel Dual-Core or Quad-Core processors, Nvida GeForce GPUs,yet has a claimed battery life of up to 17 hours of battery life.