We have featured quite a few different spy gadgets here at Geeky Gadgets, the latest one is the is the Waterproof HD Spy Camera Watch.
The Waterproof HD Spy Camera Watch can take still photos at a 1600 x 1200 resolution, and can record video at a 640 x 480 resolution (not sure why they have called it HD as it cant record HD video).
It comes with 4GB of built in storage, if you want one, the Waterproof HD Spy Camera Watch is available for about $170 from GeekStuff4U.
via Gizmo Watch