A: The Five-Star Card is the new version of the permanent resident card. Compared to the old version, it has some improvements, such as the card number increasing from 15 digits to 18 digits and an upgraded chip to better meet the needs of foreigners living in China. 

The Five-Star Card is similar to a Chinese identification card and can be used as a standalone identification document within China. For example, when buying airline or train tickets, it can be used directly without the need to present a foreign passport. 

This card typically has a validity period of 10 years. Cardholders can reside continuously in China during its validity, with permanent resident status. If a cardholder wishes to work in China, they do not need to apply for a work permit.