The Surface Pro 4 is a step up, and it’s going to be hard going back to using the Surface Pro 3 again. The screen is amazing, the keyboard is improved and the small design touches that Microsoft has added all gladden the heart, making me smile at the attention to detail. Microsoft set out to make a tablet that can replace your notebook with the first-generation Surface, but it truly realized its ambition with the Surface Pro 4. The original design stems from what we need from a notebook today. It needs to be as mobile as it is powerful, as beautiful as it is functional, as simple as it is sophisticated.