An anonymous reader writes: Ready to take on Apple Pay and Android Pay, Samsung Pay is now live in the United States. The service has already launched in South Korea, where it saw over $30 million in transactions its first month. The Verge reports: "Samsung Pay may be more capable than other competing services, but its availability has some limits. First, it's only built into Samsung's newest devices: the Galaxy S6, the S6 Edge and Edge+, and the Note 5. You also need a credit or debit card from Visa, MasterCard, or American Express card, and it has to be issued by one of just a few banks: Bank of America, Citi, American Express, and US Bank are available at launch. (Samsung Pay also works with customer loyalty cards.)"