Apple's Dimensional Drawings
Points and comments are a snapshot, not live.
Apple publishes dimensional drawings for accessory makers to design cases and other add-ons.
Apple provides free downloadable PDFs with dimensional drawings and technical specifications for its devices, covering Mac, iPad, iPhone, Watch, Vision, AirPods, TV, and accessories. The drawings include models from recent and past generations, such as iPhone 17, iPad Pro M5, Apple Watch Series 11, and AirPods Pro 3. The page is part of Apple's developer resources, aimed at supporting third-party accessory design.
What commenters are saying
Many commenters were surprised Apple publishes these publicly, having assumed they required payment or MFi certification. Several noted the drawings enable a huge third-party accessory ecosystem, making cases and skins easy to produce. Some pointed out that large manufacturers often get pre-release measurements under NDA, while others said shops in China likely still measure devices directly for tooling precision. A few commenters discussed Apple's internal use of Siemens NX on Windows VMs for CAD work, noting the lack of a first-party Mac CAD solution.