What is the difference between the type of film used in an i-type camera and a 600 film camera?

The main difference between the film used in an i-type camera and a 600 film camera is the development process. i-type film is designed to be used with Polaroid's newer instant cameras that have built-in batteries and do not require a separate battery in the film pack. On the other hand, 600 film is compatible with older Polaroid cameras that require a battery in the film pack for the camera to function.