我都好奇怪所以翻查下
原來FDA有個Pilot program 畀digital health software
簡化咗大量程序給予參加者pre-cert
Apple 嘅 Health app 就係通過咗呢個
呢個亦係點解只有app 而非Apple Watch 本身通過認證
而另一方面因為同其他地區嘅審核規格仍有距離
所以暫時未能喺其他巿場用
// Apple has been pushing its Apple Watch to become a more useful device for healthcare, and has worked with the FDA about its ambitions. The company has previously talked to the head of the FDA about "mobile medical applications" in 2014, while in 2017 it was picked to join eight other companies in an FDA pilot program to avoid problematic regulations that could slow down the development of new health-related products. //
https://appleinsider.com/articles/18/09/12/apple-watch-series-4-is-first-consumer-device-to-receive-fda-clearance-for-ecg-monitoring
// Digital Health Software Precertification (Pre-Cert) Program //
https://www.fda.gov/medicaldevices/digitalhealth/digitalhealthprecertprogram/default.htm