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Guides / library

Robot vacuum buying guides

The questions that come before you have a shortlist. Whether one of these is worth buying at all, what the specification sheet actually means, and what the machine knows about your house.

By Scooter M.Published
An open notebook with handwritten notes beside a pen

Five questions come before choosing a model: whether a robot vacuum earns its place at all, how little you can sensibly spend, what the numbers on the box actually measure, what the machine collects about your home, and on what basis anyone recommending one is making the call. This library answers those five.

The six hubs on this site are organized around floor problems, because that is how people actually shop. This library is the layer above that — the category-level decisions that apply whichever problem sent you here.

Start with whether you need one

The honest answer to "are robot vacuums worth it" is conditional, and the conditions are specific. Floor type, floor plan, shedding animals, whether anyone in the house has mobility limits, and whether your floors are clear enough to run a robot without tidying first. Two of those are about the house and two are about the household, and they pull in different directions. Are robot vacuums worth it works through them without landing on a yes.

Then work out how little you can spend

Cheap robot vacuums stopped being bad a few years ago, and the corners now get cut somewhere most buyers do not look: at the dock rather than at the cleaning. Laser mapping and anti-tangle brushes have both fallen a long way down the price ladder, which changes what a sensible floor is. The best budget robot vacuums sets out what each step up actually buys, what you genuinely give up, and the bargain worth skipping. The purchase price is not the whole cost either: how much electricity a robot vacuum uses does the arithmetic on the figures makers publish, and finds the answer is smaller than the consumables.

Then learn what the numbers mean

Pascals, millimeters of climb, millimeters of mop lift, minutes of runtime, liters of bin. Every one of those is published inconsistently and several are not standardized at all. Knowing which figures are comparable across brands and which are only comparable within one brand's range is the single most useful thing you can learn before shopping. The spec glossary covers each one and says plainly where the comparison breaks.

Decide how you feel about the sensors

A modern robot vacuum builds a floor plan of your home and, on most current models, carries at least one camera. That data goes to a cloud service so the app can show you a map. Whether that matters to you is a personal judgment, but it should be an informed one, and the answer differs sharply by navigation type. What robot vacuums actually collect sets out what is known, what is not, and which models sidestep the question entirely.

And know how we are making the call

We have not tested any of these machines. Nobody here owns one. What we do instead is compile the published specifications, record the source URL for every individual figure, mark the gaps as gaps, and rank on criteria stated before any product is named. That is a weaker claim than a lab makes and a stronger one than most affiliate sites can support. It is all set out on how we pick, and every ranking page on this site links to it.

Where to go from here

Two more questions come up before any of that, and both have their own page. If you have never owned one, the beginner's guide covers the three specifications that actually matter on a first purchase and the several that do not. If you have narrowed it to two brands, the head-to-heads are Roborock vs Roomba, Shark vs Roomba and eufy vs Roborock, Roborock vs Shark and eufy vs Roomba, and the brand-specific doubt query has its own page in is a Roomba worth it. If the machine will be running in a room you are sitting in, the quietest robot vacuum reports what we found when we went looking for a published decibel figure across ten product pages. The two brands that publish the most are compared directly in Dreame vs Roborock. And if you are weighing a robot against a cordless stick vacuum, that comparison explains why most households end up owning both. If you have already settled on a brand and only need to choose inside its range, the best Roborock ranks all seven models that brand currently sells. And if the budget is not the constraint, the best high-end robot vacuums works out what four figures actually buys. And if you arrived here because you saw a headline about robot vacuums being banned, what the FCC rule actually says separates the part that is established from the part that is reporting. The within-brand rankings now cover the best Dreame and the best Shark as well, Narwal vs Roborock adds the newest brand here to the head-to-heads, and if you have already decided against iRobot, Roomba alternatives matches a replacement to the specific model you were looking at. Between the cheap machines and the flagships sits the best mid-range robot vacuums, which is currently the best value in the category.

Once you have a sense of the category, go to the hub that matches your actual problem: pet hair, carpet, hard floors, mopping, navigation and thresholds, or troubleshooting if you already own one and it is misbehaving. Every model we cover also has its own review page with its full published spec sheet.

Go deeper on guides

If you have never owned one, start with whether they are worth it. If you are mid-shortlist, the spec glossary will save you the most time.

Guides / methodology

How we pick

The whole method, including what we refuse to claim. Every ranking page links here.

Guides / comparison

Roborock vs Roomba

One brand publishes Pascals and millimeters, the other publishes multiples. The same three price tiers, compared.

Guides / comparison

Shark vs Roomba

The most-compared pair in the category, and between them almost no published numbers. What each one does state.

Guides / guide

Is a Roomba worth it?

The brand that invented the category now publishes the least checkable specs in it. When it is still the right buy.

Guides / comparison

eufy vs Roborock

eufy publishes the most complete sheet on this site; Roborock publishes the biggest numbers and the widest range.

Guides / guide

The quietest robot vacuum

We checked ten manufacturer pages for a decibel figure and found one. What to do when nobody will give you a number.

Guides / comparison

Dreame vs Roborock

Dreame publishes climb height for every model it sells; Roborock for two of seven. Roborock publishes mop lift and body height. Row by row.

Guides / comparison

Roborock vs Shark

Roborock states suction for all seven models it sells; Shark for none of its four. What each brand publishes instead, and who should buy which.

Guides / comparison

eufy vs Roomba

iRobot publishes a suction figure on one model of five; eufy on two of three, plus climb height and runtime. Row by row, with the stock gaps stated.

Guides / guide

Are robot vacuums banned in the US?

The FCC added foreign-produced robots to its Covered List in July 2026. What it does to the robot you own, and why no maker publishes where its robot was built.

Guides / comparison

Narwal vs Roborock

Narwal publishes a mop lift on both machines we cover; Roborock on two of seven. But Roborock sells at seven price points and Narwal at two.

Guides / comparison

ECOVACS vs Roborock

ECOVACS fills every row on its flagship sheet. Roborock publishes no runtime and no bin capacity on anything. Which gap matters depends on your floor.

Guides / guide

What to look for in a robot vacuum

The six specs that decide the purchase, ranked by how often makers actually publish them - and what to do about the blanks.

Questions people actually ask

+ Are robot vacuums actually worth it?

Conditionally. They earn their place on hard floors and medium carpet in a home with clear floors, especially with a shedding animal. They earn it less in a small, tidy, mostly-carpeted flat where a stick vacuum does the job in ten minutes. The full conditions are on are robot vacuums worth it.

+ Are cheap robot vacuums worth it?

A cheap robot with mapping and an anti-tangle brush is a better buy than an expensive one with neither. Below about the price of a mapped model you are buying a bump-and-turn machine, which is genuinely useful for one room and frustrating across a floor. The best budget robot vacuums has the full ladder.

+ Are robot vacuums better than regular vacuums?

No, and that is the wrong comparison. An upright cleans deeper in one pass. A robot cleans shallower, every day, without you. Frequency is the advantage, not power — which is why they suit homes that get dirty steadily rather than homes that need occasional deep cleans.

+ Do robot vacuums have cameras?

Many current models do — camera-based obstacle avoidance is standard on flagships and vSLAM navigation is camera-based by definition. LiDAR and dToF models navigate without one, though some still add a camera for obstacle recognition. The breakdown by model family is on privacy.

+ Do robot vacuums need wifi?

Mapped models effectively do, because the map, the schedule and the no-go zones live in the app. Bump-and-turn models like the eufy 11S MAX do not connect at all, which settles the privacy question by removing it. If yours should connect and will not, that is usually the 2.4GHz band rather than the robot — see when the robot will not connect to Wi-Fi.

+ How do you pick, if you do not test them?

We compile published specifications from manufacturer pages and listings, cite every individual figure, mark what is not published rather than filling it in, and rank on criteria stated before any product is named. We also name a pick to skip in every roundup. Full method on how we pick.

Sources

Every ranking on this site links back to how we pick. That is a trust requirement, not an SEO one.