Samsung Pay, after it was launched in the United States, received good reviews from critics. The South Korean-based tech company has revolutionized and made mobile payment easy.

Samsung Pay works in old retailers, like Heidi Says and Noah's Bagel, according to CNet. One thing the critics like about it is it works in different technologies like the tap and go of NFC — just like Apple and Android's — and Magnetic Secure Transmission, which makes it compatible with almost all existing payment terminals.

Consumers can also buy something in the Apple Store using Samsung Pay. At the same time, it can be used in vending machines.

Apple and Android Pay can't be used at Safeway and Starbucks, but with Samsung, it's possible. As per The Wall Street Journal, Samsung is the only mobile maker with MST technology, and it promises that system works at more than 85 percent of American cash registers.

There was one common dilemma, though, that critics encountered — talking to some merchants, that they will be paying using their phones. A tech reviewer from CNet said she had problems in convincing sales assistants that it will work.

A technology columnist from TWSJ had the same encounter while he was at the bakery in San Francisco. He said he was going to pay using his phone, but the clerk told him they didn't have Apple Pay.

He explained it was Samsung Pay, and it works just like a credit card. The clerk insisted it may not work.

Nonetheless, they gave it a try and when it did, the clerk was amazed.

Samsung's initial partners include Visa, MasterCard, Discover and American Express, Bank of America, Chase and U.S. Bank, Pymnts.com reported.

"As the leader in innovation, Samsung is proud to introduce the first mobile payment solution that allows you to pay almost anywhere you can swipe or tap your card today," Injong Rhee, EVP of Samsung Electronics and global head of Samsung Pay said.

Samsung Pay will work on Galaxy S6, S6 edge, Note5 and S6 edge+ devices under AT&T, T-Mobile, Sprint and U.S. Cellular networks in the United States. It is reportedly not yet activated in Verizon phones.