After obtaining a local SIM card, you can use a local mobile phone number to access the Internet, download the common mobile Apps for services like ride-hailing and food delivery, purchase park tickets, and make electronic payments. You can first submit an application online and collect the card offline. (You can click the icon below to apply for a SIM card online.) After applying for a China Unicom's SIM card, you can collect it at the "Beijing Service" airport service counter at Beijing Daxing International Airport. The staff at the counter will assist you with the collection procedure on site and provide consultation services related to the purchase and use of SIM cards. (For a SIM card issued by China Mobile, the staff will guide you to the corresponding service counter at the airport).