Samsung is building a version of Samsung Pay for non-Galaxy Androids and iPhones dubbed "Samsung Pay Mini." This app will handle online payments only (that is you can't use the phone to pay in-store). There are plans to add desktop support (PC and Mac) later on. Pay Mini already supports several cards: Samsung Card, Lotte Card, and Hana Card. Others, like KB Card, are considering joining the party. The app can be secured with a fingerprint reader where available or with just PIN or password elsewhere. So far online payments account for less than 20% of Pay transactions, so Pay...
Source: http://www.gsmarena.com/samsung_pay_mini_coming_to_other_androids_iphone_and_desktop-news-18451.php