Mobile technology is a fragmented beast, with the user experience likely to vary drastically from device to device. Even within Samsung's own ranks, you've got a wide selection of devices; some running on Android, modded with the company's own TouchWiz overlay, and others packing Samsung's emerging Tizen OS. But despite a smartphone roster that seems to add new faces on a weekly basis, only the newest and most powerful devices will be getting Samsung Pay for the time being.
This includes the Galaxy Note5, the flagship Galaxy S6, along with the Galaxy S6 edge and the S6 edge+. AT&T, Sprint, T-Mobile, and U.S. Cellular will support Samsung Pay from today's inception, but if you're subbed to Verizon, you'll have to sit it out for the time being. Away from carriers, a number of banks and credit / debit card vendors are already on board, including the likes of American Express, Bank of America, Citibank, MasterCard and Visa.
The main draw for Samsung Pay over, say, Android Pay or the aforementioned Apple Pay is that it supports NFC (Near-Field Communication) and MST (Magnetic Secure Transaction) infrastructures. The latter is more widely available, meaning that Samsung Pay will work with almost all traditional swipe-card payment terminals. Since Apple and Google only support NFC for now, Samsung users are at a significant advantage, and despite its belated introduction, those wielding a Galaxy S6-era handset will surely favor it over Android Pay.
To sweeten the deal, Samsung is also offering Note5 and S6 edge+ owners a free wireless charger or wallet flip cover, should they activate Samsung Pay before the end of October 11th. To hop aboard, just hit that source link.