Which product holds the Guinness World Record for 'fastest-selling consumer electronics item', selling 8 million units in its first 60 days on the market?

Product launches are pivotal moments for brands, but some transcend mere commercial success to achieve world record status. These remarkable launches combine innovative marketing strategies, consumer psychology, and perfect timing to create unprecedented retail phenomena. Test your knowledge of the most spectacular product launches that earned their place in the Guinness World Records and retail history.

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Apple iPhone 6/6 Plus (2014)
Microsoft Kinect for Xbox 360 (2010)
Sony PlayStation 4 (2013)
Nintendo Switch (2017)