If not counting the special camera of the intelligence, the Chobi line is considered the smallest of cameras.

Chobi camera production in Japan, size 1.7 x 1.1 x 0.5 inches, weighs just 14 grams (photo). Not only photography but also can burn video to microSD card. Video is recorded to AVI format, resolution reaches 1280 x 960. Also in JPEG format with resolution up to 2048 x 1563. And though very little, but it can record up to 50 minutes. The charge Chobi done via USB, when fully loaded machine can operate continuously for 120 minutes. Retail Price Chobi camera only $ 100.

(source:news.ictexpress)