Jingyitong card is bound to social security card.

Beijing medical card is mainly for medical staff without social security card. Most hospitals don't need Beijing medical card.

Jingyitong Card will input personal information into the card and deposit some money in the card, so that you can directly read the personal identity information in the card when registering and paying fees, and it will be more convenient to pay fees directly with the money in the card.

If you have a social security card, you will generally use it to register and pay for it in real time. Personal information is also stored in the social security card.

Further reading: How to buy insurance, which is good, and teach you how to avoid these "pits" of insurance.