Using earphones to detect heart rate and heart disease risks? Apple thinks this feature will be paid by users. Although it sounds a bit abstract, consumer electronics giant Apple believes that potential users will use AirPods earphones to detect heart rate and potential heart disease risks. According to a report by the well-known Apple whistleblowing platform 9to5mac on Friday, based on the code in the iOS 18 beta system, Apple's patent application, and information from well-known whistleblowers, Apple is preparing to equip the next generation TWS earphones with a health sensor that can measure heart rate.