Samsung might be losing its title as the world’s largest smartphone maker to Apple, but the company isn’t going down without a fight. The South Korean company unveiled Samsung Pay—the company’s answer to Apple’s mobile payments system, Apple Pay—at this year’s Mobile World Congress in Barcelona on Sunday. Samsung Pay will be “compatible with more locations than any competing offering in a single application,” and protected by Samsung KNOX (Samsung’s mobile enterprise security systems), fingerprint scanning and advanced tokenization, the company said. Samsung Pay’s high compatibility is made possible by its use of magnetic secure transmission (MST), a technology that allows Samsung Pay to work with even older credit card readers.