Which retail product design holds the Guinness World Record for 'fastest selling consumer electronics device' by selling 8 million units in its first 60 days on the market?

The retail industry has seen some extraordinary world records that showcase innovation in product design, marketing strategies, and customer experiences. These record-breaking achievements have transformed how retailers connect with consumers and establish brand presence globally. Test your knowledge about famous retail world records that have shaped the industry and set benchmarks for excellence. Can you identify which retail innovation broke records and changed the industry landscape?

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Apple iPhone (first generation)
Microsoft Kinect motion sensor
Sony PlayStation 4
Amazon Echo smart speaker