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On October 26, 2016, Microsoft announced an updated Surface Book with a new Nvidia GeForce GTX 965M GPU and additional battery life over the original model. When unveiling the Surface Book to the press, Panos Panay, corporate vice president for Surface Computing at Microsoft, initially presented the device as being a laptop (using part of a promotional video which shows the screen remaining attached to the keyboard base) and positioned it as a competitor to the MacBook Pro, before revealing its true nature as a hybrid device by showing the rest of the video where the screen is revealed as detachable and compatible with the Surface Pen. It was available for a pre-order the following day and was released and shipped to customers beginning on October 26, 2015. Surface Book was announced at the Windows 10 Devices Event by Microsoft at October 6, 2015, alongside the Surface Pro 4. 2.2.1 Surface Book with Performance Base.
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