A cordless vacuum is one of those splurges that will make you wonder how you ever lived without it. The $170 Vipsun Cordless Vacuum Cleaner is on sale for $90 for Prime Day. One shopper loves it so much, they tout, "I'm a repeat Dyson buyer: choose this one instead."

SAVE 36%: Thanks to this Prime Day cordless stick vacuum deal, you can snag the Dyson V8 Plus for $299.99, down from $469.99, at Amazon. That's a 36% discount and a $170 savings. It’s Prime Day, and there's never been a time to buy your first Dyson vacuum.

Our editors rounded up the best Prime Day robot vacuum deals, including savings of up to 50% on top-rated models from iRobot, Shark and Eufy.