Which retail innovation strategy was first introduced by Amazon Go stores and revolutionized the checkout experience?

Test your knowledge about revolutionary retail innovations that have transformed how consumers shop in the 21st century. The retail landscape has undergone dramatic changes in recent years with technological advancements and shifting consumer behaviors driving new business models and shopping experiences. How well do you understand the key innovations that have disrupted traditional retail?

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Just Walk Out technology (using computer vision, sensor fusion, and deep learning to eliminate checkout lines)
Scan & Go (customers scan items with their smartphones while shopping)
RFID-based automated checkout (using radio frequency identification tags for instant scanning)
Biometric payment systems (using facial recognition or fingerprint scanning to complete purchases)