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Shark vs Dyson: which cordless vacuum should you buy?

The Dyson V15 Detect vs the Shark Stratos, compared on independent test scores, weight, warranty and features, plus the right pick on a tighter budget.

Updated November 2026How we compared

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The short answer

For carpets and pet hair, buy the Dyson V15 Detect. In RTINGS' standardized lab tests it out-cleaned the Shark Stratos on both high- and low-pile carpet, and scored 9.5 against 7.5 for pet hair. It's also about 2 lb lighter.

For the best value, buy the Shark Stratos. It sits a full price tier below the Dyson, matches it on hard-floor crevices, bends at the wand to reach under furniture, and comes with a 5-year warranty against Dyson's 2 years.

Dyson V15 Detect on Amazon Shark Stratos on Amazon

Head to head

	Dyson V15 Detect	Shark Stratos IZ862H
Rated suction	240 air watts (Dyson's rating)	Not published in air watts
Runtime (best case)	Up to 60 min	Up to 60 min (Eco, as a handheld)
Weight	6.8 lb	8.9 lb
Dust bin	0.2 gal (0.77 L)	0.18 gal (0.72 qt)
Dirt sensing	Particle sensor with an LCD readout, plus a light that reveals fine dust	Clean Sense IQ infrared sensor boosts power on dirty spots
Hair tangles	De-tangling cleaner head	DuoClean PowerFins HairPro brushroll
Filtration	Sealed whole-machine filtration, 99.99% at 0.3 microns	HEPA with Anti-Allergen Complete Seal
Extras	Screen shows run time and what you picked up	MultiFlex wand bends under furniture; odor neutralizer
Battery	Removable	Removable
Warranty	2 years	5 years (limited)
Price tier	Premium	Mid-range

Specs from Dyson and Shark product listings. Both runtimes are best-case figures in the lowest power mode; expect much less on max power.

What the independent tests found

RTINGS tests every vacuum on the same floors with the same debris, so its scores are the fairest head-to-head we can find. The Dyson won every carpet and pet-hair test. The Shark scored higher for build quality and was easier to steer, and both tied on pulling debris out of floorboard cracks.

RTINGS test (out of 10)	Dyson V15	Shark Stratos
High-pile carpet	8.0	7.0
Low-pile carpet	7.5	7.0
Pet hair	9.5	7.5
Pet hair on furniture	8.0	7.0
Floorboard cracks	8.0	8.0
Build quality	6.5	7.5
Maneuverability	7.5	8.0

RTINGS also measured less fine dust in the air around the Dyson while vacuuming, and found it quieter on carpet. Other testers back up the split: TechGearLab gave the Stratos one of its highest hardwood-floor scores and named it a Top Pick, while Vacuum Wars ranks the V15 Detect its best cordless vacuum overall and the Stratos its best value.

The features that set them apart

Dyson leans on sensors you can see. A light on the cleaner head picks out fine dust on hard floors, and a particle sensor counts what you pick up, shows it on a screen and adjusts suction to match.

Shark leans on convenience. Its MultiFlex wand bends in the middle so you can reach under beds and sofas without crouching, Clean Sense IQ boosts power when it senses dirt, and an odor neutralizer keeps the dust cup from smelling.

Both have removable batteries, so you can swap in a new one when the original wears out instead of replacing the vacuum.

Which one should you buy?

Buy the Dyson V15 Detect if

You have a lot of carpet or rugs
You have pets that shed
You want the lighter vacuum (6.8 lb vs 8.9 lb)

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Buy the Shark Stratos if

Your home is mostly hard floors
You want the most vacuum for the money
You want a longer warranty (5 years vs 2)
You clean under low furniture a lot

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On a tighter budget

Look at the Shark IX141 Pet, the budget pick in our stick vacuum guide, or the Dyson V12 Detect Slim, a smaller, lighter Dyson that keeps the dust-revealing light.

Shark IX141 on Amazon Dyson V12 Detect Slim on Amazon

Questions people ask

Is Dyson better than Shark?

For cleaning carpet and pet hair, yes: the Dyson V15 Detect scored higher than the Shark Stratos on every carpet and pet-hair test RTINGS ran. Shark wins on value, warranty length and maneuverability, and it's just as good on hard-floor crevices.

Which is better for pet hair, Shark or Dyson?

The Dyson V15 Detect. RTINGS scored it 9.5 for pet hair on carpet against 7.5 for the Shark Stratos, and 8.0 against 7.0 for pet hair on furniture.

Which is better for hardwood floors?

They're close. RTINGS scored both 8.0 for cleaning debris out of floorboard cracks, and TechGearLab rated the Stratos one of the best stick vacuums on hardwood. If your home is mostly hard floors, the Shark is the better value.

Which lasts longer?

Shark backs the Stratos with a 5-year limited warranty, while the Dyson V15 Detect comes with 2 years. Both have removable batteries, so a worn battery can be replaced without buying a new vacuum.

Is Dyson's dust-revealing light worth it?

It's genuinely useful on hard floors, where it shows fine dust you'd otherwise miss, but it doesn't make the vacuum clean better on its own. If you mostly have carpet, it matters less.