Which tech product launch holds the Guinness World Record for 'most units sold of a consumer electronic device in its first year'?

Test your knowledge about extraordinary product launches that made it into the Guinness World Records! Throughout retail history, certain product launches have been so spectacular, innovative, or massive that they've earned official world record status. From the most simultaneous store openings to the largest product unveiling events, these launches represent the pinnacle of retail marketing achievement.

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Apple iPhone 6/6 Plus (2014) with 220 million units
Sony PlayStation 4 (2013) with 184 million units
Samsung Galaxy S8 (2017) with 198 million units
Nintendo Switch (2017) with 205 million units