What phone card is better for traveling abroad?

You can use China Mobile's GSM card when traveling abroad, which is common in most countries in the world, but the charges vary greatly. Before going abroad, you should know the specific tariff standards in detail, be aware of them and don't waste money.

There are two points to note. First, there are still about 20 countries and regions in the world that have not opened GSM roaming service. Second, make sure whether your number has international roaming service before going abroad. Due to the high charge of international roaming service, Mobile will require you to pay a certain deposit. If not, you can apply for a refund after returning home.