Which retail innovation holds the Guinness World Record for 'Largest Product Testing Event' that revolutionized customer feedback collection?

Think you know about the intersection of retail innovations and world records? Test your knowledge about the most extreme, impressive, and record-breaking retail achievements ever documented. This poll explores extraordinary retail milestones that have earned their place in the record books, showcasing how businesses have pushed boundaries to create memorable customer experiences and marketing campaigns.

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Amazon's 2018 Prime Day virtual reality product testing with 2.7 million simultaneous global participants
IKEA's 2016 'Sleep-A-Thon' mattress testing event with 10,447 participants across 9 countries
Apple's 2019 iPhone launch with 8,500 beta testers in a stadium-sized testing facility
Samsung's 2017 global refrigerator testing event with 7,219 families documenting usage for 30 days