Which is better, Class I or Class II medical devices?

Class I medical devices are better.

1, a class of medical devices of low risk, the implementation of routine management, while the second class of medical devices with moderate risk, need to strictly control the management.

2, a class of medical devices license management is more relaxed, only need to obtain a business license issued by the business sector, while the license management of Class II medical devices is relatively strict, the need for provincial food and drug regulatory authorities to implement licensing and management, and were issued to the "Medical Device Registration Certificate" and "Medical Device Manufacturing License".