Those would be the HP EliteBook x360, which is brand new this month, and the Microsoft Surface Book i7 (aka the Surface Book with Performance Base), which has been on the market for just a few months.

Along with its 360-degree hinge for folding the display ... What's cool about it: The EliteBook 1050 serves as HP's first 15-inch Elite 1000 series device, and its display goes up to 650 nits ...