Build quality and design
As an EliteBook, the Revolve 810 G2 Tablet (model F6B48PA) isn't aimed at regular consumers, but instead at business users who need a notebook that can be converted into a tablet with a minimum of fuss, and most importantly, without having a split design and removable (and losable) parts (in any case, the CPU power is not in the screen but in the base). It's built out of magnesium, and this not only makes it feel very strong, it also makes it look attractive. HP says it's designed to the MIL-STD 810G specification for temperature variations, shocks, particle exposure, and its keyboard is also spill resistant. Additionally, the touchscreen is protected by Gorilla Glass.
Performance and battery life
As for performance, the EliteBook Revolve 810 G2 can be bought with ether Core i3, Core i5 or Core i7 fourth-generation, ultra-low voltage, dual-core CPUs, and up to 12GB of DDR3L SDRAM (4GB is soldered onto the board and there is one slot for expansion). Storage can be either a 128GB, 180GB or 256GB solid state drive (SSD). Our model (F6B48PA) came to us with a Core i5-4300U CPU, 4GB of RAM, and a 128GB SanDisk SSD.
Its performance was swift throughout our test period, whether we used it for typical Desktop tasks, or for running Modern UI apps, and it was also quite a capable unit for tasks such as editing and processing photos (though the relatively small resolution of the screen wasn't great for that). In Blender 3D, it got a time of 44sec, which is actually a couple of seconds faster than what the Lenovo ThinkPad X1 Carbon recorded with the same CPU. It was slower than the Carbon in the 3DMark Cloud Gate and Fire Strike tests, though, recording 3821 and 489, respectively, while the Carbon got 631 and 4536. The Carbon had the benefit of 8GB of RAM.