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

The Guinness World Records book includes some fascinating retail and product milestones that showcase extraordinary marketing achievements and shopping phenomena. These records demonstrate the impressive scale and innovation in the retail world. Test your knowledge about remarkable product and retail world records that have shaped consumer history and marketing strategies across the globe.

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Apple iPhone (first generation)
Microsoft Kinect for Xbox 360
Sony PlayStation 2
Nintendo Switch