Better Than Cellphone Watches

So I was thinking how I really wanted to build a watch with digital hands that preformed a few specific tasks. Just a little piece of wristwear that would tell time and serve as a compass, an instrument tuner, and maybe a thermostat and barometer. Well eventually this line of thought lead me to a simple question. Could you fit a lie detector in a watch? And "modern lie detector test" lead me to this gem of a website. Turn up the speakers and enjoy:

Expert Polygraph Testing -