This is correct. 1. Customer scans QR 2. POS operator hits given this is a realtime hit and noone else is hitting this QR at this time. 3. Customer receive

This is correct. 1. Customer scans QR 2. POS operator hits given this is a realtime hit and noone else is hitting this QR at this time. 3. Customer received bill, hits OK. Confirmation sent to both reatailer and customer at the same time. Customer often shows retailer this has been successful. Receipt printed and handed to customer. 4. Customer walks away happy. The transaction from 1-4 takes less than 2 seconds. Very efficient. The stumbling of a new customer to get their phone out, activate pay, question if any special offers are in offer however drags this out to a vastly greater amount of time than using cash. However, the tech UX is sound. Edit: Live in China. Wish people could use cash as queues are much longer when the 'human factor' is added in/ Perhaps this will fade, but it has already been a few years and sees no fading as retailers add discounts, coupons, to the payment, which leads customers to click around their phone rather than being prepared in advance with discount coupons and cash.