An Oscilloscope Wristwatch

This is pretty cool, a large wrist watch that is a oscilloscope. Not so sure how the battery life on this would be. Or when I would need such a watch since if I am at the point of debugging systems.. I usually have equipment around to so the job. Would I get one?  Not at a $100 a whack.

http://hackaday.com/2013/09/27/an-oscilloscope-on-your-wrist/?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+hackaday%2FLgoM+%28Hack+a+Day%29