They record not only large movements that would be visible to the naked eye but also more subtle movements, including those generated from breathing. This t...

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

across a variety of conditions and user behaviors. Among these were deep breathing, riding in a car, hand tremors and motion, reduced hand or wrist perfusio...

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

069-0135-K_SPEC, REGULATED SUBSTANCES_Sept2018.pages Apple Regulated Substances Specification 069-0135-K This document contains proprietary information of A...

https://www.apple.com/jp/environment/pdf/Apple_Regulated_Substances_Specification_Sept2018.pdf