The conversation surrounding the best robot vacuums is a multi-faceted one in which four or five brands have a word at any given moment, fluctuating very few months as someone releases yet another new model. But regardless of the stiff competition that the Roborocks and Eufys of the world continue to pose, the Shark vs. Roomba debate is forever a heated one — exemplified when even a generic search of “robot vacuum” on Google triggers the “People also ask” box to populate with “Is Shark or iRobot better?”

Cementing a definitive answer on the better robot vacuum brand is tricky when “better” is a subjective term swayed by what a shopper needs their robot vacuum to excel at. Some may consider the better robot vacuum to have more advanced navigation that leads to less babysitting, while others may classify the one that squeezes out a sufficiently thorough clean for less money as the better value.

The new 2025 Roombas just changed everything

This would have been a very different article to read had you stopped by any time before March 2025. Before then, iRobot and Shark were both kind of plateauing in terms of the variety of their respective lineups. It was like a competition to see who could be the most mid — especially compared to the robot vacuums announced at CES.

But the lukewarm rivalry got interesting when iRobot went rogue and overhauled the whole Roomba fleet outside of its typical schedule (the company had previously been saving its big product drops for late summer). The new batch consists of eight new Roombas falling under four different umbrellas: the Roomba 105 or 205, or Roomba Plus 405 or 505, ranging in price from $299 to $999. (This may or may not be a last ditch effort to save the company from a reportedly bleak financial situation.)

These Roombas are so new that I haven’t gotten to test them out at home yet. But just based off of descriptions and prices, iRobot seems to have patched up several weak spots in the lineup and prioritized budget friendliness without skimping on features that consumers really care about, like smart mapping in even the cheapest models.

And up until iRobot’s March 2025 announcement, neither iRobot nor Shark measured suction power in Pascals (Pa) like most of their competitors do. iRobot finally made the switch, but Shark still insists on keeping an air of mystery by solely comparing suction power to other vacuums in its own family tree. (That’s what iRobot was doing with its older models, too.) Shark has also been known to make claims like “50% better suction than the best-selling iRobot. Whatever that means — the weakest Roomba is probably technically one of its best sellers.

Where iRobot and Shark agree: Being weird about suction power disclosure

Pinning down whether iRobot or Shark robot vacuums are stronger is always a challenge, and not just because each offers multiple different vacs with different levels of power at different prices. The two longstanding brands aren’t keen on using the standard unit of Pascals (Pa) to measure suction power like the Roborock and Eufys of the world are — an effort that could only be perceived as a secret pact to make my life as a robot vacuum reviewer more difficult than it needs to be.

Instead, both Shark and iRobot like to keep their suction power comparisons within their own families. For instance, they might say a new model offers “x times the suction power” that an older or more basic model of theirs does. iRobot did originally float the idea of switching over to Pa with its March 2025 releases, but actual Pa numbers are still hard to track down online.

Where Roomba wins: Small obstacle avoidance and more models to fit more needs

iRobot simply has more robot vacuums, and that variety alone gives it a leg up on Shark. More models to choose from means more opportunities to customize the features and budget to a shopper’s main goals for automated cleaning.

Let’s say you’re willing to pay a little extra for a premium robot vacuum that achieves the most hands-off experience possible. iRobot has several options with features that make a robot vacuum increasingly self-sufficient, including mopping pads that automatically lift over carpet, self-empty docks that also wash and dry the mopping pads, and small obstacle avoidance cameras.

The Roomba Combo 10 Max has a retractable mop that lifts over carpet.
Credit: Leah Stodart / Mashable

The new Roomba Plus 405 Combo has two spinning mopping pads — a first for iRobot.
Credit: iRobot

But floor type is far from the most impressive thing the smarter Roombas recognize. All j series Roombas, the Roomba Combo 10 Max, and the Roomba Plus 505 Combo all have small obstacle avoidance technology, which solves the main gripe that many robot vacuum non-believers have: robot vacuums get stuck so often that they’re more trouble than they’re worth. These Roombas use a special camera system to help them recognize and avoid small obstacles that less-advanced robot vacuums would typically eat, like a phone charger, extension cord, rogue sock, or pet waste.

I first experienced this sense of relief when reviewing the Roomba j7+ and Combo j7+, and it was never easy to get back into the habit of pre-tidying when trying another robot vacuum that didn’t have that. I’d easily sacrifice more intense cleaning for a robot vacuum to have the brain cells to do that.

One of the coolest parts about the Roomba lineup is that you can mix and match several of these features to stay within a certain budget. You can skip all of the other fancy features while still bringing home small obstacle avoidance with the standalone Roomba j7 for as little as $299 on sale, or try out the space-saving DustCompactor design with or without mopping for under $500. Even the cheapest 2025 Roombas guarantee LiDAR-powered smart mapping and 70 times (read that again) the suction power of the 600 series Roombas, which were the go-to base tier Roombas two years ago.

I’d just like to say that I basically called iRobot’s most recent move in an older version of this piece from spring 2024, saying that “iRobot would also be wise to drop a more budget-friendly option with carpet-centric suction power.” People sticking to a certain budget shouldn’t inherently have to settle for a rinky-dink cleaner, and iRobot finally realized that that’s the piece that was missing in its entry-level tier.

Where Roomba loses: The ultra-affordable end of the spectrum

Plummeting earnings one month, a random revamp of the entire Roomba line the next month — if we’re trying to read between the lines, I’d say it became glaringly obvious that people were getting sick of Roombas costing a lot but not doing enough.

While the 2025 Roomba releases do show that iRobot is pandering to the value-minded crowd harder than ever before, the cost-per-feature situation is still stiff in the $400-and-under category. Is it too overpriced, too late for iRobot?

For instance, I think that the perfect starter robot vacuum is one with smart mapping and self-emptying — suction can be pretty basic. In Roomba world, the cheapest option for this is the Roomba 105 + AutoEmpty Dock, going for $449.99. In Shark world, the same capabilities can be secured for $329 at full price.

Then, iRobot’s $200 to $300 assortment is almost comically Not Worth It. In April 2024, iRobot fumbled a low-hanging opportunity to right the disappointments of its budget section. Admittedly, the $249.99 Vac Essential, $274.99 mopping Roomba Combo Essential, and slightly more expensive self-emptying versions do provide a more powerful clean than the older 600 series. But the cheap Roomba’s fatal flaw remains: they still don’t have smart mapping, a feature I feel is ~Essential~ in any robot vacuum. A handful of Sharks at the same prices with comparable suction power do smart map.

The Roomba Combo 2 Essential was more of a pain than a help in my apartment.
Credit: Leah Stodart / Mashable

Sure, all of these base-tier Roombas do go on sale often. You could technically score the absolute cheapest Roomba for around $130 or a mopping, self-emptying Roomba for $280. But settling for no specific room cleaning just isn’t worth it, especially when a similar wad of cash could get you way further if you were buying a Shark (or a Eufy or a Dreame model).

In my experience, just hitting “go” and letting a robot vacuum clean aimlessly is a recipe for coming home to a robot vacuum lost under the bed. The zigzag pattern feels like a hit-or-miss guessing game made more annoying by getting stuck and missing spots on the floor that I’d rather just hit with my Dyson stick vacuum, anyway.

Where Shark wins: Spot cleaning and affordability

Shark has been much more in tune with what the average person is willing to spend on a robot vacuum. The brand consistently offers core capabilities like smart mapping and mopping at lower prices than its Roomba counterparts — a level of cost-effectiveness that should be particularly enticing to strict budget shoppers or first-time robot vacuum owners.

Shark’s more approachable price points don’t necessarily mean it skimps on cleaning performance, though.

I have both my beloved cordless Dyson and, for Mashable testing purposes, at least one robot vacuum at my fingertips at all times. I get a true sense of any given robot vacuum’s value when an unexpected mess within a room in my apartment needs to be taken care of right now. So my favorite thing that I’ve noticed about Shark robot vacuums is that they make spot cleaning easier than Roombas do. While the iRobot app insists that you create and name an official cleaning zone, even if this is a one-time thing, Shark lets you skip the labeling charade to drag and drop a square on your map in the designated spot cleaning tab. It’s just one step, but there’s something to be said for streamlining.

Shark also gets a bit more nitty gritty with the spot cleaning itself. This all started with its Matrix line from 2023, which introduced Matrix mode. These Sharks clean in a grid pattern, approaching the area several times from multiple angles to grab anything it may have missed in the first pass or two. iRobot and Shark can duke it out over suction power on paper all they want, but in my testing, I found the low and mid-range Shark models (like the Shark Matrix Plus 2-in-1 and Shark Detect Pro) to be much less likely to leave a rogue crumb or pile of hair behind than the 600 series, Essential series, and lower-end j series Roombas.

During regular vacuuming, Sharks in Matrix mode dish out 30 percent better carpet cleaning than the older RV Shark models. For the 2-in-1 Shark models, Matrix mode also works with mopping when the mopping pad vibrates 100 times per minute to scrub at stains that would likely not budge when wiped with a stationary cloth. Matrix mopping came in clutch for keeping up with the constant layer of shoe prints by my front door.

The Shark RV2300, which comes in a cute gray color.
Credit: Leah Stodart / Mashable

Shark even extends the Matrix cleaning mechanism to its cheapest robot vacuum, making it one of our favorite — if not the favorite — budget-friendly robot vacuums in 2024. The Shark RV2310 and Walmart-exclusive Shark Matrix RV2300 and RV2300S are incredibly reliable robot vacuums for the price, often on sale for $199.99 for the standalone version and $299.99 for the self-emptying version. (If this model is sold and shipped by a third party rather than Walmart when you click, we’d advise waiting until more stock from Shark itself comes in.)

I experienced no noteworthy issues with navigational accuracy when sending the Shark RV2300 to specifically sweep my bathroom or Matrix clean the floor surrounding the kitchen counter, which is an area I dragged and dropped in the app on a case-by-case basis. Though the suction power is expectedly just OK, it was enough for surface-level daily upkeep of the big, visible debris.

In September 2024, Shark finally caught on to the whole “self-sustaining mopping pads” thing with the release of the Shark PowerDetect line. And naturally, even the most premium Sharks debuted at $1,199.99 and $999.99 — several hundred less than the Roomba with self-washing and drying mopping pads (at the time).

The Shark PowerDetect robot vacuum with NeverTouch Pro dock.
Credit: Leah Stodart / Mashable

This is the first mopping Shark that knows to stop mopping on carpeted areas without you having to specifically designate so. For good measure, the PowerDetect is also equipped with large wheels that hoist the vac over carpet to keep it dry during mopping mode. Those hydraulics also helped the PowerDetect to be one of the only robot vacs I’ve tested to not swirl my bath rugs up every single time.

Where Shark loses: Small obstacle avoidance

Shark’s shortcomings stem from sparseness in its family tree and a long wait period between product drops that often have it playing catch up with other brands. The existing Shark models are also a little more basic than some of the Roombas, especially mid-tier ones.

For instance, the one big thing Shark was missing forever was a premium hybrid robot vacuum that could wash and dry its own mopping pads. That gap was finally closed when Shark released the Shark PowerDetect NeverTouch Pro in September 2024. But small obstacle avoidance is the other premium robot vac feature that’s come to simply be expected in vacs near the $1,000 point, and Shark’s NeverStuck technology still hasn’t mastered it yet. A handful of Roombas, most of them reasonably priced (at least when on sale), do check the small obstacle avoidance box.

This means that things like cords, pet toys, laundry, and slippers aren’t really on a Shark vac’s radar yet. And you have to be around to clear the floor of those before sending a Shark out. Maybe you don’t mind that, maybe you do — depending on how seriously you’re taking the hands-off approach in your robot vacuum search.

One Roomba counterpart, the $649.99 (or $499 on sale) Roomba Combo j5+, also self-empties, mops, and maps, and does the last part with small obstacle avoidance built in to take on a job even if the floor is a little chaotic. Compared to the other main brands like iRobot, Roborock, Eufy, and Dreame, who all have more than one botvac with small obstacle avoidance tech, it wouldn’t hurt Shark to prioritize small obstacle avoidance across multiple models in its next product drop.

Similarly, only one hybrid Sharks automatically stops mopping when carpet is sensed. This means vacuum and mop mode aren’t possible at the same time in the other 2-in-1 Shark Matrix models, and a person needs to manually attach the water tank to switch to mopping mode. With Matrix Mopping being such a solid feature, it’s a bummer that it can’t be deployed more freely.

The most advanced non-mopping Shark does way less than the most advanced non-mopping Roomba.
Credit: Leah Stodart / Mashable

Though I was satisfied with the floor coverage, thoroughness, and mapping accuracy when testing the $599.99 Shark Detect Pro, it seems overpriced for the negligible differences between it and a regular old self-emptying Shark. “Detect” sounds like it should refer to the capability to detect phone chargers or socks, but alas, it’s actually talking about a feature that increases suction when an edge, corner, or extra dirty spot is detected. This is nice, but heightened corner coverage isn’t major enough to justify $600, especially when there are several Roombas in this price range that also work harder on dirtier spots, as well as mop and avoid small obstacles.

Our winner

Roomba

After years of struggling for relevancy in the booming robot vacuum market, Shark is finally a viable Roomba contender with its value-packed Matrix line. Roomba sure as hell isn’t standing still either, though, and both brands are at a point where they offer several solid options that excel at at least one bullet point of the feature trifecta that makes a robot vacuum worthwhile in 2025 (past the actual cleaning performance itself): self-emptying, smart mapping, and mopping.

That’s where their overlap ends. Both Shark and Roomba still have blind spots, just on opposing ends of the spectrum of cost and advanced (or not) features. This is where your personal cleaning needs and budget will come into play.

Shark unequivocally packs more value into the budget-friendly end of the spectrum. All of its Matrix robot vacuums have smart mapping and can enter Matrix cleaning mode, which entails vacuuming or scrubbing in a crosshatch pattern over several passes. It’s a particularly reliable feature during spot cleaning, and generally offers more thoroughness than the similarly-priced i Series Roombas. Plus, you can almost always find one of the low-end Matrix models on sale for less than $200.

The cheap Roombas haven’t aged well, and no Roomba that’ll go on sale for less than $200 can map your home or clean as thoroughly as the Matrix system.

But iRobot does make up for that oversight with its new 105, 205, 405, and 505 series Roombas, as well as its older j series Roombas. Ranging between $299 (on sale) and $999 (on sale), all j Series Roombas can avoid small obstacles like cords and pet waste. Two of these j Series Roombas push the hands-off experience even further with a built-in mopping arm that never needs to be removed or attached. The new Roombas from 2025 cover a ton of ground in the $400 to $1,000 range, offering a much broader range for folks to customize their purchase with the robot vacuum features they care about.

All pros and cons considered, we’re still crowning iRobot as the better robot vacuum brand for most people. There’s simply a bigger variety of Roombas to choose from, which allows for customizing your robot vacuum purchase to your budget and cleaning priorities without settling.

While Shark does do more under a certain price point, small obstacle avoidance — and presumably, less babysitting — will be major for the robot vacuum skeptics who need a bot that’s truly autonomous for it to seem worthwhile.