世界中で50を超えるブランドがHomeKitとApple製デバイスに対応するアクセサリを提供しており、その数はこれからも続々と増えていく予定です。

https://www.apple.com/jp/home-app/accessories/

Suppliers must certify compliance with this specification and provide required documentation (including required test data, Full Material Disclosure (FMD), ...

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

electroencephalography (EEG), electrocardiogram (ECG), pulse oximetry, airflow, and leg movements. Sleep stages are assigned by human experts based on visua...

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