You can prepay, for example on T-Mobile. The sim card is $1, and while you won't get by on $10, if you stay in the city $30 gets you all you need. Definitely

You can prepay, for example on T-Mobile. The sim card is $1, and while you won't get by on $10, if you stay in the city $30 gets you all you need. Definitely still cheaper in China and Europe.