What are the differences between i-type and 600 film formats for Polaroid cameras?

The main difference between i-type and 600 film formats for Polaroid cameras is that i-type film does not have a built-in battery, while 600 film does. This means that i-type film is slightly cheaper, but requires a camera with a built-in battery to function properly. Additionally, i-type film produces slightly different color tones compared to 600 film.