Overview

• Apple tested a black Apple Watch Ultra with a black ceramic back and a plastic Action Button before introducing the original model.
• The prototype was discovered in FCC filings by user @ParrotSWD on X (formerly known as Twitter).
• The final version of the Apple Watch Ultra, launched in September 2022, features a gray ceramic back and a metal Action Button.
• Apple has a history of sending prototype designs to the FCC for regulatory approval months ahead of product launches.
• The emergence of this prototype highlights Apple's iterative design process and could influence future iterations of the Apple Watch.