The Impossible I-1 uses a new generation of instant film, the Impossible I-Type. Available in both color or black & white with the classic white frame. The only difference with Impossible I-Type film is that it does not contain a battery. This means considerably less waste (better for the environment) and that it is less expensive to produce (better for you). The reason this is possible is that Impossible branded cameras (I-1, Instant Lab) have a built-in battery and therefore do no depend on the battery contained in the film pack.
The Impossible I-1 is compatible with both I-Type and 600-Type film. This means that I-1 users have access to all 600-Type films as well, giving I-1 photographers even more flexibility.