Is Amazon Pay coming to Brick and Mortar Stores?
QR code has other advantages including the ability to work with almost any phone with a camera. Moreover, Walmart (NYSE: WMT) accepts QR code apps but not NFC. Hence, Walmart could accept Amazon Pay but not Apple Pay or Google Pay.
Additionally, Walmart offers its own QR code wallet called Walmart Pay. Markedly The Journal did not say if they will integrate Walmart Pay with Amazon Pay.