Samsung Pay debuted roughly three years ago to much fanfare, but how's it been doing since? Pretty well -- relatively speaking. The Korean tech giant has announced that its tap-to-pay service has racked up 1.3 billion transactions worldwide and is now available on six continents thanks to a launch in South Africa at the end of July. That makes it available in 24 markets -- rather convenient when the Galaxy Note 9 is days away from hitting stores. The growth is no mean feat, although it's important to put it in context.