Which retail technology innovation first reduced average checkout times by more than 30% when widely implemented in the early 2000s?

As retail technology continues to evolve, the checkout experience has undergone dramatic transformations. From traditional cashiers to today's autonomous stores, retailers are constantly seeking ways to reduce friction and improve customer experience. This poll tests your knowledge about a significant technological shift that changed how we pay for goods in physical retail environments. Do you know which innovation truly revolutionized retail checkout efficiency?

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Self-checkout kiosks
Integrated RFID inventory systems
Contactless payment terminals
Handheld mobile POS devices