U.S. online sales rose 6.1 percent to $12.7 billion during Amazon’s Prime Day two-day promotion from July 11-12, according to Adobe Analytics, which measures transactions at U.S. retail sites. Amazon called the first 24 hours of Prime Day the “single largest sales day in company history,” but did not disclose total sales.

In a statement, Amazon said that over the course of the two-day shopping event, Prime members purchased more than 375 million items worldwide and saved more than $2.5 billion on deals across it e-store, helping to make it the biggest Prime Day event.

“The first day of Prime Day was the largest sales day in Amazon’s history, and Prime members saved more this year than any other Prime Day event,” said Doug Herrington, CEO of Amazon stores. “Prime is an incredible value, and we’re proud to offer additional value for members through exclusive deal events like Prime Day. Thank you to our Prime members for continuing to shop in our store, and to our employees and independent sellers around the world who delivered for customers this Prime Day.”

Home goods, fashion and beauty were among the top categories during the sales event with Fire TV sticks, Apple AirPods and Laneige lip balm called out as strong sellers, the company said.

The first day of Amazon’s two-day Prime Day event saw U.S. sales rise nearly 6 percent year-over-year to $6.4 billion, according to Adobe. Consumers spent $6.3 billion on the second day of the Prime Day event, up 6.4 percent year-over-year.

Despite strong sales, the results fell short of Adobe’s expectations. Adobe had forecasted total U.S. online sales to grow 9.5 percent year-over-year to $13.1 billion during the two-day event. Last year, U.S. consumers spent more than $11.9 billion.

Adobe data found that on July 11 the gain among categories was led by appliances, up 37 percent compared to June 2023’s daily sales average; toys were up 27 percent; apparel, 26 percent; and electronics, 12 percent.

On July 12, major gains were again in appliances, up 52 percent compared to average daily sales in June. Sales of housekeeping supplies rose 27 percent on July 12, electronics gained 15 percent, apparel moved up 24 percent, and office supplies surged 76 percent, driven, in part, by back-to-school deals.

Adobe said some of the deepest discounts over both days were on electronics, apparel and toys.