This 4.5* robot vacuum just crashed to less than half price with $900 off in the Memorial Day sales

Dreame robovac with Don't Miss graphic overlaid
(Image credit: Dreame / Future)

A good robot vacuum can be a huge effort-saver, and right now there's a ridiculously good deal on one of our highest-rated models: the Dreame L40 Ultra is down to just $599.99 (was $1,499.99) at Amazon. That's a whopping 60% off, and ridiculously good value for what you're getting here. Of all the robot vacuum deals we've spotted in the Memorial Day sales, you're getting the best bang for your buck here.

The cleaning power is excellent – we tested it in a home with multiple cats and dogs, and it sucked up incredible volumes of hair without complaint. In fact, we rate this as the very best robot vacuum for pet hair – but even if you don't have pets, if it can handle that, it'll have no trouble with regular, everyday dust and debris.

Browse the full Amazon sale

Because it's a hybrid model, it can mop as well as vacuuming. On test, out reviewer was equally impressed with its mopping skills. Plus, the dock can take care of a vast amount of maintenance for you: everything from topping up the water tanks to cleaning and drying the mop pads so they don't get stinky over time.

Today's best Dreame L40 Ultra deal

Dreame  L40 Ultra
Dreame L40 Ultra: was $1,499.99 now $599.99 at Amazon

This feature-packed bot has a masssive $900 off for Memorial day, taking it to less than half price – outstanding value for such a capable robot vacuum. It comes with excellent vacuuming and mopping, plus a dock that will take care of everything from emptying the dustbin to washing a drying the mop pads and dispensing detergent.

In our Dreame L40 Ultra review, we found very little to complain about. It mapped our tester's home quickly, navigated confidently and accurately, and dodged obstacles well too.

The dock will also take care of most maintenance for you. As well as auto-emptying dust (a must for pet owners who don't want to be constantly be emptying the small onboard dustbin), it'll refill the bot's water tanks and add detergent, and wash and dry the mop pads too. Just beware that it's big and bulky, so you'll need somewhere to store it.

We awarded the L40 Ultra a near-perfect 4.5 stars, and it features high up in our roundup of the best robot vacuums you can buy.

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Ruth Hamilton
Homes Editor

Ruth is TechRadar's Homes Editor specializing in air (vacuum cleaners, fans, air purifiers), and hair (hair dryers, straighteners and stylers). She has been in consumer journalism since 2020, reviewing and writing about everything from outdoor kit to mattresses and wellness gadgets, with stints on Tom's Guide and T3.

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