It is already possible to pay for things using your phone. The Wirecard Smart Band happens to be a smart wearable device that offers contactless payment functionality on your wrist. It connects to an app on your smartphone via Bluetooth 4.0 to get the job done. The device has a screen that shows how much you have paid and loyalty points that you have earned.
Let’s not forget that the Apple Watch and other smart wearables will soon give you the ability to pay for things more conveniently. We are going to see many solutions similar to this in the future. The above video should give you a better idea how the Wirecard Smart Band works.
[Source]