<ul data-eligibleForWebStory="false">Apple is appealing the import ban on its latest smartwatches, related to a legal dispute with Masimo over blood oxygen sensor patents.The dispute began in 2021 when Masimo accused Apple of infringing on its pulse oximetry patents.The International Trade Commission sided with Masimo, leading to the import ban on Apple Watch Series 9 and Ultra 2.Apple's appeal argues that the ban was unfair to Apple Watch users, highlighting the timeline of Masimo's competing product development.