Amazon Prime Day is a summer sale that was first introduced in 2015. At its start, Prime Day was a single-day event meant to celebrate the company’s 20th anniversary. Over the years, it’s expanded into a 48-hour event, but this year it’s getting another extension: Amazon Prime Day 2025 will be four days long.

Prime Day is a great time to buy a Dyson — although the newest Gen5Detect is still expensive, older models like the V8 and V11 are just as reliable and often go on sale for 30 percent off or more. This cordless pet vacuum is one of our favorites overall, and it’s now on sale for a fraction of the price of a Dyson.

For those without a Prime membership, Prime Day is Amazon’s massive sales event, featuring thousands of discounts on tech devices, beauty products, and home goods for a limited time. Here’s everything we know (so far) about what Amazon has in store for Prime Day 2025 that takes place this month.