How to Access the Internet in China 
If your SIM card roaming charges in China are supported, then you can use your own phone card to access the internet in China. Your operator will automatically switch to China and provide support.
(2) You can contact your operator to check the details of phone and data charges in the Chinese region to determine if you need a temporary card for the Chinese region.
(3) Cards in China are not much different from those in Europe and the United States, with both eSIMs and physical cards available. Typically, fees are lower, and Chinese cards do not require binding to your bank account. All Chinese cards are prepaid. You don’t have to worry about continued deductions from your bank account after you stop using them. As long as you don’t recharge or your prepaid balance is exhausted, you won’t incur any costs.
(4) However, you should be aware that phone cards in the Chinese region can encounter some issues when accessing the internet. Networks in China, including Wi-Fi, cannot be used to access Facebook, Google Maps, WhatsApp, and other software. Therefore, when you obtain a phone card, you will need a VPN app to help you use these software normally.
(5) A VPN is essentially a software that helps you bypass the internet restrictions in the Chinese region. Each time you open it, you can access these websites normally.
(6) Recommendation: There may be some price differences, but we guarantee the stability of the recommended ones. If you cannot use them in China, please feel free to contact us via WhatsApp, email, or WeChat at any time, and we will assist you anytime.