pulse oximetry

Apple has stopped selling the Apple Watch Series 9 and Watch Ultra 2

Apple is going out of business after the US’ International Trade Commission (ITC) barred the import of products using Masimo pulse oximetry technology. The tech giant had entered into an agreement with Masimo to build a blood oxygen monitoring feature for its Watch series. Masimo had sued Apple in 2017 for patent infringement, alleging Apple used its technology without permission.