This paper provides a detailed understanding of the development and validation of this updated sleep stages feature. Introduction Sleep is a well-accepted p...

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

or eco-label requirements, and Apple policies. Apple’s restrictions may go beyond regulatory requirements in order to protect human health and the environme...

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