If you want to travel to the United States, which domestic mobile phones support its frequency band? Need to buy a local card or open an international roaming cost-effective? Because it will take more

If you want to travel to the United States, which domestic mobile phones support its frequency band? Need to buy a local card or open an international roaming cost-effective? Because it will take more than a month. The above is the tariff reference of Xiaomi's global Internet access function. But from Zhihu, they recommend local cards.

Then I also saw Baidu's empirical method.

Buy tpo calling cards from Taobao or Tmall

Baidu supports so many pictures at most. I put Baidu's experience and Zhihu's address below for your reference. Hope to adopt ~

Baidu Experience: Is the link too long to get in? Direct Baidu search "Zhihu, do you need a mobile phone card to travel to the United States for one month?"

Zhihu: /question/22924754