Google on Thursday confirmed the arrival of Android Pay and a revamped Google Wallet, an overhaul of the company’s mobile payments products, which was previously reported by The New York Times. Both products are a shift from the company’s past mobile commerce efforts, which largely flopped. The new services, like the world of payments in general, are not simple. Here is how they work:

http://bits.blogs.nytimes.com/2015/05/28/a-primer-on-android-pay-and-google-wallet/?_r=0