The Surface Pro 4 is the latest high-end laptop replacer tablet in Microsoft’s Surface series. It was released in October 2015 and has since been dubbed one of Microsoft’s better inventions. The Surface Pro 4 succeeds the Surface Pro 3 and has seen some revolutionary updates. Users can expect a more power-efficient and powerful CPU as well as more storage space and better display. Design / Hardware The Surface Pro 4 is identical in size to that of its predecessor, the Surface Pro 3; however, it has a thinner screen bezel making the display slightly bigger, with a size of 12.3 inches (31 cm). The system that controls the cooling has been restructured and referred to as hybrid liquid cooling system. It comprises of heat pipes with a flowing liquid, which reduces the need for the use of the internal fan when the device is used for tasks that are not as demanding such as browsing the web.