Which retailer holds the Guinness World Record for the largest product launch event, where over 1.3 million units of a single product were sold during the first 24 hours of release in 2018?

The world of retail has its own share of impressive records and remarkable achievements that have made it into the Guinness World Records. From massive store openings that drew unprecedented crowds to innovations that changed how we shop forever, these retail milestones showcase human ingenuity and business ambition. Test your knowledge about these extraordinary commercial achievements that pushed the boundaries of what's possible in the retail world!

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Xiaomi (Mi 8 smartphone launch in China)
Apple (iPhone X launch worldwide)
Amazon (Echo Dot 3rd generation launch)
Samsung (Galaxy S9 launch event)