Not only is the Surface Book 2 now available in both 13-inch and 15-inch options, it also features updates to the design and powerful internal hardware. The display can still be removed from the keyboard and touchpad, and can still be replaced backward to sit flat as a complete package. The 13.5-inch display has a 3,000 x 2,000 resolution and a 3:2 aspect ratio, whereas the 15-inch model comes in with a 3,240 x 2,160 resolution.

If you need top performance, the 15-inch model is where you want to look, offering up inside an eighth-generation, quad-core Intel Core i7 CPU, 16GB of DDR3-1866MHz RAM, and a 1TB PCIe solid-state drive (SSD). For gaming or multimedia editing, you can also take advantage of the NVIDIA GTX 1060 GPU with 6GB of GDDR5 VRAM.

Battery life here is impressive; get about 10 hours from the 15-inch model and about 11 hours from the 13-inch model. An IR camera for Windows Hello logins is seated above the display, and the keyboard and touchpad are some of the best around. If you need a true desktop replacement for your Windows laptop, this is it.

Available in both 13-inch and 15-inch configurations, Microsoft’s new Surface Book 2 (starting at about $1,500) is our top choice when it comes to Windows laptops. The modular design allows you to use your laptop as a tablet, and powerful hardware inside, including eighth-generation Intel processors (CPU), up to 16GB of RAM, and dedicated graphics cards (GPU), makes either size a true desktop replacement.

Bottom line: For a powerful desktop replacement with a beautiful display and removable keyboard, you have to go with the Surface Book 2.