The standout feature on the J20 is an innovative mop pad, set on a roller like the wheels of a tank, which works extremely well. It's very much a premium option, but the performance is excellent.

For $cem more, you can dispense with dealing with the water tanks entirely and buy the Refill & Drainage System model. This lets you plumb the charging base directly into your home’s water supply.

Robot vacuums are quite an investment, and it’s important to be able to buy replacement parts to keep them going for longer and have access to good support in case your robot has a serious issue.

One of the big benefits of a Roomba is that they're relatively slim in height, meaning they can venture places other bots can't. On test, we found this one was especially good at handling pet hair, with its grippy rubbery rollers.

Many of today's best robot vacuums are also able to mop floors. This can be useful if you have a mix of hard floors and carpet, but be aware that robovac mopping tends not to clean as well as good old manual mopping.

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It’s also noticeably quieter than many models. It gets dinged a bit in our handling test, which evaluates how easy it is to push, pull, and carry the vacuum, but that’s on a par with other canister vacs we’ve tested. And its carpet cleaning is very good, but not the highest. Still, this model comes from the only vacuum brand we test that gets top scores from our members for both reliability and owner satisfaction.

Intuitive app, but robot doesn't always do as its told, and there's an issue with separating open plan spaces.

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“For some people, it might make sense to have multiple vacuums for different situations,” says Frank Rizzi, who tests vacuums for CR. “A robotic vacuum can help with maintaining your pristine floors, and a lighter stick can help with quick messes alongside your bigger upright or canister.”

This automatic vacuum features strong suction and a runtime of up to 120 minutes, offering thorough cleaning sessions before needing to recharge.

The S8 MaxV Ultra also has a built-in voice assistant, which makes getting the bot to clean the mess Top 3 Automatic Vacuum Cleaners your kid made after dinner as easy as saying, “Rocky, clean here.”

If you’re looking for an inexpensive vacuum with strong suction, the Kenmore Elite Pet Friendly 31150 is the one. Its suction power surpasses other bagged uprights we’ve tested, and its cleaning performance is impressive. It earns top marks for cleaning bare floors and is no slouch at removing embedded dirt from carpets or tackling pet hair, either.