With the Surface Pro 4 re-establishing Microsoft as the best Windows tablet maker, you can't find a slate that's not trying to emulate its design and success. From the Lenovo Miix 700 to the Dell XPS 12 and even the iPad Pro, everyone is getting into the pro-level tablet game with their own detachable device.The Spectre x2 is HP's entry in the ever-expanding tablet-laptop hybrid category. While there's a striking resemblance between it and the Surface Pro 4, the Spectre x2 carves an identity of its own with a thinner body, fanless Intel Core M processors and a premium design. Coming at a more affordable $799 (£799, AU$1,699) price point with a keyboard included, this 12-inch slate undercuts Microsoft's flagship tablet. But make no mistake: HP's 2-in-1 is a compelling device in its own right.