https://techcrunch.com/2023/12/21/apple-has-halted-watch-series-9-and-ultra-2-online-sales/

As promised, Apple has officially removed the Watch Series 9 from its online shop. Word on the surprise move arrived earlier this week, when the company confirmed that an on-going patent dispute has forced it to pause sales of the flagship smartwatch. Click through to the site, and you’ll find the words “Currently Unavailable” in the place of a Buy button.

The Apple Watch Ultra 2 is similarly unavailable. You can, however, still buy the entry-level Apple Watch SE, likely owing to the product’s relatively limited on-board health metrics. You can also still pick up the Series 9 through other online sources. Amazon, for instance, is still promising a pre-Christmas delivery in some areas.