The bezel height between the side of the device and the display itself is 77% thinner.

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With device volumetric efficiency a key concern for system makers, WD began shipping 7 mm height hard drives for thin-profile notebooks earlier this year (historically, standard notebook hard drives have been 9.5 mm).

ENGADGET: Western Digital builds 5mm-thick hybrid hard drive, Ultrabook makers sign on early

The LifeShirt, as the company's device is called, is a turtlenecked, short-sleeved shirt that could yet become the height of medical fashion.

ECONOMIST: Medical monitoring