Grocery shopping via smartphone on South Korean subways

Hoping to raise the level of convenience for time-strapped commuters in South Korea, Home plus — the Korean branch of Tesco PLC — recently launched a series of virtual stores on subway platforms, enabling customers to make purchases using their smartphones while they wait for a train.
The virtual stores, constructed from large backlit billboards, displayed images of all the items one would expect to find in a standard Home plus shop. QR codes were then placed next to the image of each product, enabling smartphone equipped commuters to automatically add the merchandise to their virtual basket by scanning the code. The total order was then delivered to the commuter’s door once they returned home from work.

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