Conduct 5G electronic signatures, large transfers, etc. At the 2020 China Mobile Global Partner Conference, Yang Jie, Chairman of China Mobile Group, said that China Mobile had completed the deployment goal of 5G ahead of schedule and built 5GSA networks in key counties and cities. 202 1, cities, counties and some towns and villages in China have basically achieved good 5G coverage. Among them, the card is a super SIM card, which can be used as a meal card, an access card, a transportation card, a car key, a 5G electronic signature, a large amount of money transfer, etc. , especially high-end.