I will travel to America soon, about 15 days. I want to buy a phone card in America, mainly with traffic function.

It costs at least 12 dollars to buy a SIM card of a national calling card, and the cheapest T-mobile costs 30 dollars a month. You can't use a family plan over $20. There are also American calling cards that limit traffic, only 4G traffic. Of course, if you want to use 4G traffic, you have to buy 4G mobile phones.

So I have prepared about 50 yuan to apply for your card, and the fee will be paid every month. However, the United States is very humanized, and you can recharge your phone bill by buying a card on the operator's website or directly using a credit card. You haven't spent more than a month, so one month's money is enough. If you make an international call to China, it is still recommended to use the mobile GSM service. The American card is too expensive to make a phone call, so it may not work. 50 yuan doesn't have 20 minutes.