The Shark vs. Dyson debate was alive and well far before the FlexStyle or Airwrap were terms the internet had in its vernacular. (But don't worry — we've dissected the FlexStyle vs. Airwrap rivalry, too.)
Vacuums were the OG gadget that have pitted these two brands against each other in shopping research for at least a decade, though the type of vacuum in the spotlight has shifted from bulky upright vacuums to cordless stick vacuums.
While brands like Bissell, Samsung, Roborock, and Tineco occasionally slip a competitive cordless model into the fold, Shark and Dyson are two clear market leaders. So I'm investigating the competition between the variety of cordless vacuums that Shark and Dyson offer as a whole, as well as comparing features like suction power, battery life, maintenance, and attachments on similarly priced models through hands-on testing in my own home.
Note: This head-to-head deep dive focuses solely on cordless stick vacuums, not robot vacuums. The comparison between Shark robot vacuums and the Dyson robot vacuum needs far fewer words: In no world should you buy the Dyson 360 Vis Nav over any of the Shark robot vacuums. I tested it and wasn't impressed, and it's definitely not worth the money.
Where Dyson wins: Performance variety, attachments, and the laser
There are 13 different cordless Dyson vacuums sold on Dyson's website as of summer 2025, give or take a handful of slightly cheaper spinoff models of the V7 or V8 seen at retailers like Walmart. This has been Dyson's core lineup for a while now — no new cordless Dysons have been announced since the Dyson V15 Detect Submarine and Gen5 line dropped in June 2023.
The Dyson family of vacuums ranges in price from around $300 (on sale) to $1,049.99, and that huge cost spectrum leaves a ton of room for a potential buyer to customize the intensity of their ideal cleaning to how much (or little) they think is necessary to spend on a vacuum. Someone cleaning up after multiple pets or children in a multi-story home may need a bigger, badder Dyson with a two-hour battery life and a half-gallon dust bin that won't need to be emptied as regularly, while someone living alone in an apartment may not require as much stamina and prioritize a more compact build that's easier to store.
Before automatically pegging Dyson's steeper prices as a downside, I'd be remiss to not consider how much Dyson is giving you for that chunk of change. All of the Dyson models above $649.99 (the V12 line, V15 line, and Gen5 line) come with two interchangeable cleaning heads: the XL detangling Motorbar for deeper cleaning of carpets and the slimmer Fluffy Optic head with the green laser for more meticulous cleaning of hard floors.
That laser is so iconic that it deserves more than a vague mention at the end of a sentence. It illuminates invisible debris like hair, tiny crumbs, and microscopic dust on hard floors that probably weren't noticeable with a casual glance at your floor, pointing out exactly where you need to clean even better than the LED light on the cleaning head of Shark cordless vacuums. It's a game-changing tool in homes with a decent amount of hardwood, tile, or linoleum — once you've experienced cleaning with the Dyson laser, you won't be able to clean without it. It's the sole reason the Dyson V12 Detect Slim is my favorite vacuum of all time.
The lower-tier Dysons (the Outsize line, the V11 line, and the V8 line) come with one cleaning head like all of the cordless Sharks do, but unlike any of the Shark models, even the cheapest Dyson line comes with the mini motorized hair screw tool. This attachment marks a full-sized vacuum's true ability to transform into a handheld vacuum and, in homes with pets who chill on furniture or are frequent passengers in the car, is arguably used just as much as the full-sized cleaning heads.
Where Dyson loses: Intimidating prices and... too much power?
It's easy to gaslight yourself into accepting that it's normal for a cordless vacuum to cost close to a month's rent if Dyson is at the forefront of your vacuum research. In some cases, the higher costs are somewhat justifiable considering all of the extra attachments that Dyson includes, as well as the exhaustive heavy-duty clean achieved by Dyson's advanced cyclonic system.
But this angle starts to unravel toward the cheaper end of the Dyson spectrum — some of the lower-tier Dysons just don't offer what the equivalently-priced Sharks do. For example, if you wanted to spend no more than $300 or $400 on a cordless vacuum, Shark models in that price range, like the Shark Clean & Empty ($399.99) or the Shark Vertex Hair Pro ($379.99), are actually a better bang for your buck than whatever Dyson V8 you stumble across on sale. Shark has a more affordable baseline for intelligent suction power adjustment based on the debris level sensed, and offers an automatic emptying docking station with one of its smartest models for less than $500. You can only imagine how much a self-emptying Dyson would cost. The lack of that full-fledged upright docking system means that storing most Dysons either requires closet space or drilling a hole to mount it to the wall.
It also turns out that there is such a thing as being too powerful for your own good. I'm not the only person I know who has struggled with Dyson's Digital Motorbar vacuum head getting stuck on carpet, whether that's loose soft flooring like rugs and bath mats or a fully-carpeted room. The combination of such intense cyclonic suction and the spinning brush sometimes makes the vacuum hard to push across the floor, often tripping itself up so much that the brush roll stops spinning altogether. Because of this, I have personally dubbed the Fluffy Optic cleaning head as my Dyson's full-time cleaning head, regardless of floor type, despite the fact that it's tailored to hard floors.
Where Shark wins: Practical prices, balanced carpet cleaning, and automatic emptying
There are 14 cordless vacuums sold on Shark's website as of summer 2025. (Many cordless Shark vacuums come in both a self-emptying version or a standalone version.) This number includes the Shark HydroVac Pro XL: Shark's cordless vacuum and mop combo model that is significantly cheaper (but less powerful) than Dyson's cordless vacuum mop. Shark barely ever prices a vacuum higher than $500, and sales on Shark vacuums aren't hard to come by, either.
Shark gets double points for beating Dyson to the punch on automatic emptying. Instead of having to manually empty your vacuum's dust bin into the trash after every few cleans, several Shark vacuums empty themselves instead, dumping whatever they just sucked up into a larger dust bin inside their charging dock. This wickedly convenient maintenance feature is already the norm with robot vacuums, and is now becoming much more common with cordless vacuums — but despite Dyson being the more expensive brand in general, all of its vacuums still make you deal with the dust bin by hand. This also makes up for the fact that most Shark dust bins are no bigger than a glass of water, while Dyson offers a much broader range of dust bin capacities.
For people with allergies, the closed-loop auto-empty system is also far less triggering than the inevitable inhalation of dust hovering over the trash can. Plus, the dock also acts as built-in storage for the vacuum that doesn't require a closet or a screw drilled into the wall.
Comparing suction power on paper is tricky when each brand measures it in a different way. Shark provides standard figures like amps, wattage, and volts, while Dyson's main suction statistic is a calculation called Air Watts. Confusing numbers aside, whatever Shark is doing in the suction power realm is working better than what Dyson is doing — at least when it comes to plush carpet and rugs. The bristles dig while the rubber Powerfins are great at pinching hair and debris from between carpet fibers, ruled by suction power that's forceful enough to tackle most messes on one pass, but not aggressive enough to jam the whole mechanism.
Shark includes one of two main full-sized cleaning heads depending on the cordless vacuum you choose, but both attack messes with Shark's proprietary Powerfins, a combination of flexible cleaning fins and bristles similar to Dyson's Motorbar. There's no dust-detecting laser, but there is a bright LED headlight that does a decent job of highlighting the path in front of you to point out debris that may have blended in otherwise.
Where Shark loses: Skimpy attachments and heavy-duty premium options
Shark's generally lower prices are less impressive when you remember that they also mean fewer extras in the box. Shark only ever includes one full-sized cleaning head whereas Dyson often includes two cleaning heads (a heavier-duty one tailored to plush carpeting and a slimmer one tailored to dusty hard floors). Then, Shark trying to pack such a large, powerful brushroll and a headlight system into a single vacuum head makes for a more cumbersome design that doesn't fit into all of the nooks and crannies that probably need a good dusting. After getting used to the nimbleness of Dyson's slim Fluffy Optic head on my V12 Detect Slim, I'm perpetually frustrated with Shark vacuums not quite reaching the entire way into corners, fitting in between or under some furniture, or sweeping behind the toilet as satisfyingly.
The LED lights on Shark vacuums also aren't nearly as helpful when cleaning as the Dyson laser is. Being able to see where you're cleaning is better than nothing, yes, but the laser is just so much more precise when it comes to picking up on fine, invisible debris. I don't think that Shark bulbs show the full scope of how dirty the floor is, whereas the green laser illuminates everything.
It's also noteworthy that the cost of a Shark cordless vacuum doesn't include the mini motorized brush attachment that makes or breaks a handheld vacuum's value. The small attachments Shark includes with each vacuum, like a crevice tool or (non-motorized) pet brush, are definitely handy, but aren't going to dig into upholstery or carpeted stairs like a targeted spinning brush would. If that's an attachment you could see yourself using often, you'll have to buy it separately — so add $99.99 to the cost of the Shark you're considering.
Which is better: Shark or Dyson?
When it comes to the cordless vacuum side of their market domination, both Shark and Dyson offer several solid options that make it impractical to objectively crown one brand as "better." However, settling on the brand you want to bring home is pretty easy after confirming your main priority in your vacuum hunt: budget or cleaning prowess.
All pros and cons considered, I'm crowning Dyson the best brand for most people. It's hard to argue with Dyson's slightly higher prices when the reason for the cost is valid: They're simply sending more in the box. Namely, the mini motorized hair screw tool (a non-negotiable in any home with pets), as well as two full-sized cleaning heads that ship with the V12, V15, and Gen5 lines.
Dyson's cordless vacuum lineup is larger and more robust than Shark's, offering several tiers for upgrading and matching the amount you're willing to pay for certain levels of suction power, battery life, and dustbin capacity. On the pricier end of the spectrum specifically, Dyson has an edge in terms of the heavy-duty cleaning required to keep up with big homes or frequent messes. Dyson's higher costs also cover more exhaustive full-sized and handheld attachments that don't require separate purchase. If you're really picky about the level of cleanliness that constitutes a hard floor being barefoot-ready, Dyson's laser could also be a selling point on its own.
Shark's cordless vacuum lineup makes it easy to buy a good vacuum on a budget — for anyone trying to not outspend $500, I think the Sharks in that price range are way stronger competitors than the cheap Dysons. There's also something to be said for keeping suction power in check the way that Shark has, and you can count on its vacuums to take on a rug or carpet without creating so much force that pushing or pulling becomes impossible. If you're grossed out enough by manual dust bin emptying, the fact that Shark offers automatic emptying with multiple vacuums could be a strong enough selling point in itself.
At the end of the day, Dyson's line of vacuums just offers more variety that I think will satisfy more people, even if it requires saving up, splurging, or waiting for a sale. There's probably one happening as you read this.
