There were minature 'spy' cameras in late Victorian times, around 1880/1890.
I would say a pocket digital camera is better than a non-pocket camera, because they are much smaller. They don't cost much, and you can get all the great features as a non-pocket camera.
the pocket instamatic 50 is the first camera to be produced in miniature size in orde to enable carring the camera around in your pocket{see instamatic}
The pocket watch was invented in the year 1504.
Peter Henlein invented the Pocket watch.
The Creative pocket video camera will work great as a spy camera as long as it' properly concealed.
George Eastman invented the lightweight camera.
George Eastman invented the small camera
he invented the first camera in the world
Steven Sasson invented the digital camera in Texas and it was invented in 1993.
A Pocket Wizard is radio which enables one to utilize lighting for cameras wirelessly. In order for it to be used correctly, the Pocket Wizard must be in synch with the camera and the camera's flash.
Dr Kadir PhD MBChB invented the camera
The camera was invented by William Henry Fox Talbot. He had invented it in 1833