在科技界 lately has been buzzing with a significant development that is likely to be well-known to many - the decision by Apple to discontinue sales of its Apple Watch Series 9 and Apple Watch Ultra 2 models in the United States, starting from Eastern Time on December 21st at 3 PM. This means that these two smartwatch variants will no longer be available for purchase on the official US-based Apple website, and once existing stock in retail stores runs out by December 24th, there will be no further replenishment.