The Olympus Air A01 camera is smaller than a lens
At $300, the Olympus Air A01 is a tiny, relatively inexpensive micro four-thirds camera. Without a body, it’s controlled via wi-fi by a smartphone app. Decent for photos, but lacks the manual control I’d like for video.
Olympus Air A01 on B&H: http://www.bhphotovideo.com/c/product/1162571-REG/olymp