To pay she simply looks at her reflection in a small LCD screen attached to the cashier’s counter. Then to add her preferred amount of tip she flashes a quick peace sign at the monitor.
The entire process takes less than five seconds, and is entirely contactless. Moreover, Ms Stewart doesn’t need to carry her mobile phone or bank card with her, or show any form of identification, or even enter a pin number.
“It’s just another way to identify yourself. The [digital] picture [taken at point of sale] is destroyed immediately, and the data isn’t shared with anyone.”
Read the full article on BBC