How to calculate the cost of sending a message to domestic WeChat when traveling to Japan?

WeChat uses traffic. If you activate short-term international roaming service, you will be charged according to the type of package. There are too many types of packages. You can go to the corresponding operator’s official website or customer service for consultation. For example, mobile short-term roaming has 128 packages of 3-day traffic. The basic payment is 6 yuan and 3M, and there is a daily upper limit. China Unicom or other operators have their own packages and standards. It depends on which operator you use.

If you do not activate international roaming, you will not be able to make calls and use mobile data traffic