Apple has announced its new mobile payments system: Apple Pay. As expected, it will allow you to use your iPhone 6, iPhone 6 Plus, or Apple Watch as a digital wallet, paying at one of the 220,000 contactless payment locations across the US. Furthermore, though, Apple Pay also simplifies online payments, allowing you to buy things with just a single tap of the Touch ID sensor (your fingerprint). Apple Pay will also work with the Apple Watch.