The camera looks reasonably rugged, with a plastic protected lens -- it's also water-resistant up to 10 meters.

ENGADGET: Ion The Game action cam has built-in WiFi and 2.5-inch display, we go hands-on (video)

The output is then relayed into a 1.4 mm thick plastic waveguide lens with input and output hologram structures on the surface which squeezes the light down the waveguide and then two dimensionally expands the image back into the user's eye, creating an image that is then mixed into the real world.

ENGADGET: Vuzix designs Smart Glasses to look like sunshades, tout connected transparent display

Starting at the back, the removable battery cover has a matte, almost soft-touch finish, save for a plastic section surrounding the camera lens and LED flash.

ENGADGET: HTC Desire X review: one last hurrah for a former flagship?

Not just any old periodic table, but the most photographically breathtaking version ever created, encased in sturdy plastic and enlivened by "lenticular technology, " the technique that uses linear lens elements laminated over a specially processed image to create a convincing 3D effect.

FORBES: Toys Your Techie Friends Will Love