and compared with traditional reference audiometry in a clinical validation study that supported Food and Drug Administration (FDA) listing and authorizatio...

https://www.apple.com/jp/health/pdf/Hearing_Health_Features_on_AirPods_Pro_2_October_2024.pdf

858 participants were used to develop the algorithm in the design phase. An additional 299 nights from 166 participants — who weren’t included in the develo...

https://www.apple.com/jp/healthcare/docs/site/Estimating_Sleep_Stages_from_Apple_Watch_Sept_2023.pdf