https://arstechnica.com/gadgets/2023/12/apple-watches-being-pulled-from-stores-this-week-due-to-potential-import-ban/

Apple will pause sales of the Apple Watch Series 9 and Apple Watch Ultra 2 starting December 21, it revealed today in a statement to 9to5Mac. The move comes as the products are facing a potential import ban until August 2028, due to rulings that the watches infringe on patents from Masimo.

In October, the US International Trade Commission (ITC) upheld a January ruling that Apple Watches with pulse oximeter features infringe on two Masimo patents. Since then, the case has been under a 60-day Presidential Review Period, which ends December 25. After that date, the watches are subject to an import ban until the patents' expiration in 2028.