All Instax film sizes differ only in width. Use that width to capture more of the scene, fit more people or to take closer, more detailed shots.
Mini
The great value and compact size of Instax Mini make it our recommendation for large bundles and general use. This is the film used in our Colorful and Retro Mini bundles.
Square
Square film is close in size and shape to the old-school Polaroid film for that classic look.
Wide
Wide has a huge photo area well suited to group shots. We like this for polaroid photo booths and other fixed locations where you want more than a few people in the shot.