identification algorithm, Apple Watch Series 4, Series 5, and Series 6 also have an electrical heart sensor that, when using the ECG app, enables the genera...

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

Using AirPods Pro 2 with iPhone and iPad to Help Protect, Assess, and Assist Hearing White Paper Using AirPods Pro 2 with iPhone and iPad to Help Protect, A...

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

app. The initial sleep-tracking feature, released in 2020 (with iOS 14 and watchOS 7), included a determination of two states — asleep or awake — for each 3...

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