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 2025 is nearly here, and Amazon is bumping up the number of shopping days to score deals. Here's what we know about the sale.

I search for deals for a living and I've discovered the best space tech deals ahead of Fourth of July celebrations and Amazon Prime Day.