
Well, you can’t call them small. Tiny is the word. Japanese Trust Technology (JTT) is selling the CHOBI CAM 1 with dimensions of 25 x 25 x 26mm and a weight of 12g. It shoots stills (1600×1200 pixels) and video (640×480 pixels). Of course, as a DSLR, it accepts interchangeable lenses. It uses a microSD/SDHC card of up to 32GB.

If you can’t handle tiny controls, you may want to skip it. Cost is a whopping US $120.
source TrustedReviews

Here’s what you can expect as far as video quality is concerned:
From jttproducts
From jttproducts
From jttproducts