//support.apple.com/en-us/HT211685 http://support.apple.com/en-us/HT211685 Accelerometer-Based Sleep Staging Technical and Feature Description Apple Watch c...

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