As with the Surface Pro 3, Microsoft maintains its unique 3x2 aspect ratio, but bumps up the resolution to 2736x1824. The 12.3-inch screen looks absolutely crisp.

At the big Windows 10 devices event today, Microsoft's Panos Panay said that 53 percent of Surface Pro 3 owners use the device's stylus. So, when it came to building the improved Surface Pro 4, it ...