What is the difference between the i-type film and 600 film?

The main difference between i-type film and 600 film is that i-type film is specifically designed for use with Polaroid's i-type cameras, which do not require a battery to operate. On the other hand, 600 film is compatible with both Polaroid 600 cameras and i-type cameras, but it contains a built-in battery to power the camera's features.