The first thing you’ll notice is the new design. As rumored, the Mini has been shrunken down considerably — and it was already a relatively small desktop machine to begin with. Now it’s downright tiny, measuring five inches in both length and width. If you’re wondering how Apple manages to keep things running cool, the company says it’s through the M4’s efficiency and “an innovative thermal architecture, which guides air to different levels of the system, while all venting is done through the foot.”