Japanese phones can be used as credit cards, payment for public transport and vending machines, live TV streaming (and recording), and even more than that.
Can an iPhone really be used as a credit card? No.
Can an iPhone really be used to pay for public transport? No. Only if there's an app that's been released by the transport company.
How about payment for vending machines? No.
Live TV streaming AND recording? No.
I can safely say that Japanese phones blow the iPhone out of the water.
The japanese phones being used to pay for stuff isn't the phone's technology; it's the carrier and whatever you're paying for. Take a vending machine for example: you txt or call a number that is on the machine, the machine sends info to your carrier and they put it on your monthly bill. If the carriers and other companies in America decided to do that here, it could be done. so no, the phones in japan don't blow the iPhone out of the water; japanese carriers blow american ones out of the water