Amazon said it shipped more than 5 billion items through its quick-delivery Prime program, while more people joined the $99-per-year service worldwide than any previous year.
Amazon doesn't always give much detail on sales, instead opting for metrics like the “tens of millions” of Alexa-powered devices during the holiday season. But it is clearly proud of Prime, which has grown over the years from a fast-shipping program, to an expansive video service, to a ticketing and live event service, and much more.
A pair of Amazon's own device — the Fire TV Stick and Echo Dot — were the best selling items across all categories and manufacturers. Another top seller is an item that has lately become synonymous with Amazon Prime: The Instant Pot. Amazon said the item was the most gifted Amazon Wedding Registry item, the item on the most Wish Lists and it was delivered to more than 27,000 U.S. zip codes in 2017.
