This is the Surface Pro 4

Microsoft has also redesigned the Surface's two key accessories to coincide with the new model: the Surface Pen and the Type Cover.

The new Surface Pen now has a tail eraser and interchangeable tips, allowing users to customise the stylus based on what they are doing. The Pen also supports 1024 points of pressure, has an all-year battery, and will use magnets to attach to the side of the Surface Pro 4.

Like the Surface Pro 4, the new Type Cover is both thinner and lighter. Keys are spaced further apart, and the trackpad is 40% larger and now made of glass. Despite the decrease in size, the keys have 1.3mm of travel.

The new Type Cover will also work with the Surface Pro 3. In addition, a second new Type Cover featuring a fingerprint reader for Windows Hello authentication will be made available for Microsoft's older tablet. The Surface Pro 4 doesn't require a fingerprint reader thanks to its Windows Hello enabled camera. 

Both the new Surface Pen and the new Type Cover are available in five colours.

While the Surface Pro 4 comes across as a compelling upgrade, it will face increased competition from similar devices such as Apple's iPad Pro and Google's Pixel C, and manufacturers including Dell and Lenovo, who both have Surface-like two-in-ones on the horizon.

The Surface Pro 4 will be available in the United States from October 26, retailing from USD$899. Locally, the Surface Pro 4 will go on pre-order from today, be available from November 12, and starts at AUD$1,395.