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Amazon Says Prime Day 2022 'Biggest' Ever, as US Online Sales Near $12B

That's a growth of nearly $1 billion on the equivalent days last year for all e-commerce in the US, according to the Adobe Digital Economy Index.

James Martin/CNET

This story is part of Amazon Prime Day, CNET's guide to everything you need to know and how to find the best deals.

Amazon Prime Day 2022 is officially over. And according to the company,  it was the "biggest Prime Day event in Amazon's history." Amazon stuck with its norm of not releasing total sales figures but said Thursday that Prime members purchased more than 300 million items worldwide and "saved" over $1.7 billion.

But the extent of Amazon's sales can be read in the tea leaves of the Adobe Digital Economy Index. Overall, Adobe said, US e-commerce sales reached nearly $12 billion on July 12 and 13 combined -- the two days of Amazon's sale. That compares with $11 billion on the equivalent days of Prime Day last year. On average, online sales were up 141% on those two days this week, compared with an average day last month. Not all of those extra sales went to Amazon, however. A few other major retailers, including Target and Best Buy, ran competing sales this week. 

Products that saw the biggest discounts, according to Adobe, included toys at 15% off on average and apparel at 12% off. Electronics, TVs and computers saw smaller discounts, averaging at 8% or lower.

Read moreAmazon Prime Day 2022: Best Deals on TVs, Laptops, Apple and More Still Available

Amazon said some of the bestsellers in the US this year included beauty products, diapers, toothbrushes, teeth-whitening strips, lunchboxes, clothes and vacuums. The top-selling tech products included the Apple Watch Series 7 and Beats headphones and earbuds. Some of Amazon's own Echo, Fire TV and Blink devices were among the top sellers too.

Amazon also said more than 60,000 items were purchased per minute in the US during the two-day sale, while worldwide that figure reached 100,000 per minute. 

Prime Day has been around for eight years and typically happens in the summer, except in 2020 during the start of the pandemic when it got pushed back to October.

The official Amazon Prime Day event is over, though some sales are still available.