Which product holds the Guinness World Record for the fastest-selling consumer electronics device in history, selling 8.3 million units in its first 60 days on the market?

The Guinness World Records catalog features numerous product innovations that have set benchmarks in their respective industries. These aren't just commercial successes but designs that pushed boundaries and transformed consumer expectations. This trivia tests your knowledge about product design innovations that officially made it into the record books. How familiar are you with these landmark retail achievements that changed shopping forever?

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Apple iPhone 6
Microsoft Kinect
Sony PlayStation 4
Amazon Echo