Vacuum Comparison
Dyson V15 Detect Plus vs Shark IZ462H: Which Cordless Vacuum Wins?
We tested both on 2,200 sq. ft. of mixed flooring. Here's what actually matters for your home.
By Marcus Webb | Last tested: March 2026
Disclosure: This site participates in the Amazon Associates Program. We earn a commission on qualifying purchases at no extra cost to you. All reviews reflect our independent evaluation.
The Dyson V15 Detect Plus and the Shark IZ462H Vertex are the two most capable cordless vacuums at their respective price points. The Dyson costs $800. The Shark costs $360. That $440 gap is the central question of this comparison: what does the extra money actually buy, and does it matter for your home?
We ran both vacuums through the same 2,200 sq. ft. test route, the same pet hair scenarios, and the same under-furniture tests. Here's what we found.
Choose the Dyson V15 if:
You have pets with heavy shedding, diagnosed allergies or asthma, or primarily hard floors over 1,500 sq. ft. The certified HEPA filtration and laser detection make a real difference for those households.
Choose the Shark IZ462H if:
You have mixed flooring, no severe allergy concerns, and want strong performance without spending $800. The DuoClean PowerFins system handles transitions between surfaces better than most vacuums at any price.
| Feature | Dyson V15 Detect Plus | Shark IZ462H Vertex |
|---|---|---|
| Suction | 240 AW (Auto), 280 AW peak Winner | Not published |
| Runtime | 60 min (Eco), 25 min (Boost) Winner | 40 min |
| Filtration | Certified HEPA Winner | Anti-Allergen Complete Seal |
| Laser Detection | Yes Winner | No |
| Particle Counter | Yes (LCD) Winner | No |
| Weight | 6.8 lbs Winner | 8.7 lbs |
| Bin Capacity | 0.2 gal | 0.45 qt Winner |
| Flex Under Furniture | No | Yes Winner |
| Mixed Floor Performance | Good | Excellent Winner |
| Price Range | $749 – $849 | $329 – $399 Value |
| Best For | Pet owners, allergy sufferers | Most households, mixed floors |
The V15 Detect Plus is built around two things that most vacuums ignore: showing you what you're missing and actually capturing it. The green laser on the Laser Slim Fluffy head casts fine dust in shadow so you can see debris that's invisible to the naked eye. The HEPA whole-machine filtration captures 99.97% of particles at 0.3 microns, certified. These aren't theoretical advantages.
In our testing on a 2,200 sq. ft. home with a golden retriever, the V15 covered the entire floor in Eco mode with battery to spare. The hair screw tool didn't require a single manual clear over two weeks of daily use. The LCD display showing particle counts and estimated runtime remaining is more useful than it sounds.
The weaknesses are real: $800, 4.5-hour charge time, a small 0.2-gallon bin that needs emptying every 2 to 3 rooms in heavy-debris conditions, and a Laser Slim Fluffy head that performs best on hard floors rather than deep carpet. If those tradeoffs fit your household, nothing else at this price performs at this level.
The Shark IZ462H covers the practical needs of most households at roughly half the Dyson's price. The DuoClean PowerFins floor head is the standout feature: two brush rolls working simultaneously handle the transition from hardwood to rug to carpet without any input from you. We ran this vacuum through the same mixed-floor test route repeatedly, and it never missed a beat at the surface transitions.
The Flex technology getting under low furniture is genuinely useful. Our test platform bed sits 4.5 inches off the floor. The Shark slides completely flat underneath it with the Flex handle locked at 90 degrees. The Dyson can't do this without a separate accessory. For homes with platform beds or low sofas, this is a meaningful advantage.
At 8.7 lbs it's heavier than ideal, and 40 minutes of runtime means planning around recharging on larger homes. The Anti-Allergen Complete Seal filtration traps 99.9% of dust but isn't independently certified to HEPA standards. For the right household, none of that matters much. The floor cleaning performance is genuinely impressive for $360.
The Dyson V15 publishes a suction rating: 240 AW in Auto mode, 280 AW peak in Boost. Shark doesn't publish an airwatts figure for the IZ462H, which makes direct comparison harder. In practical testing, the Dyson pulls noticeably more fine particulate from hard floors, particularly with the laser revealing what to target. On carpet, the difference is smaller.
Filtration is where the gap is clearest. Certified HEPA captures 99.97% of 0.3-micron particles. Shark's Anti-Allergen Complete Seal captures 99.9% and is tested by Shark's own methodology. Both are effective for most households. If you have allergies or asthma triggered by fine dust, pet dander, or pollen, certified HEPA is the more defensible specification. The Dyson wins this category without much debate.
Sixty minutes (Dyson Eco) versus 40 minutes (Shark) sounds like a clear win for the Dyson. In practice, the gap matters most in homes over 1,800 square feet being cleaned top-to-bottom in a single session. For smaller homes or vacuuming in sections, 40 minutes is enough.
The Shark has one practical advantage here: the battery is removable. A second battery charged and ready means you can swap and keep going without waiting 3.5 hours. The Dyson's battery is integrated. If runtime is a concern, the Shark's removable battery design gives you a workaround. It costs more (second battery is an additional purchase), but the option exists.
On hardwood floors, the Dyson's laser detection is a genuine differentiator. We tested it on floors we'd already cleaned with the Shark and still found debris visible under the laser. The Shark picked up 90% of what the Dyson subsequently found. For hard-floor homes, the Dyson's thoroughness is hard to match.
On mixed flooring, the Shark's DuoClean PowerFins system has an edge. Transitioning from hardwood to area rug to bedroom carpet is seamless. The front soft roller and rear finned roll handle different surfaces simultaneously. The Dyson's Laser Slim Fluffy head is optimized for hard floors and needs a head swap for deep carpet agitation.
For under-furniture access, the Shark wins. The Flex handle at 90 degrees goes places the Dyson can't reach without attachments. In homes with low platform beds or deep sectional sofas, this is a real advantage that shows up every time you vacuum.
The Dyson V15's LCD display showing real-time particle counts, mode status, and remaining runtime is genuinely useful, not just impressive on spec sheets. In Auto mode, the vacuum uses particle count data to adjust suction without your involvement. Over time, the count data gives you a map of which areas in your home have the most debris.
The Shark's LED headlights on the floor head illuminate debris in shadow. That's the extent of its smart features. It's a vacuum that cleans rather than one that measures and reports. For users who don't want to think about their vacuum, that simplicity is a feature.
The Shark IZ462H at $360 is one of the best performing cordless vacuums under $400. Its DuoClean PowerFins system genuinely outperforms single-brush-roll designs at any price. The Flex technology is a practical advantage that most premium competitors don't offer. For the money, it's an excellent vacuum.
The Dyson V15 at $800 is expensive for cleaning equipment. The HEPA filtration and laser detection provide real-world benefits. But those benefits are most meaningful for a specific type of household: pets, allergies, or hard floors as the primary surface. For a household without those factors, $800 is hard to justify when the Shark does 90% of the job.
If you have pets, allergies, or primarily hard floors in a home over 1,500 sq. ft., buy the Dyson V15 Detect Plus. The certified HEPA filtration and laser detection aren't marketing features. They make a genuine difference in cleaning thoroughness and indoor air quality. The hair screw tool is the best pet hair solution we've tested on any cordless vacuum.
For everyone else, the Shark IZ462H Vertex is the smarter purchase. It handles mixed floors better, costs $440 less, gets under furniture the Dyson can't reach, and performs well enough that most households won't notice the gap. The DuoClean PowerFins system is the best floor head in its price range.
For pet owners and allergy sufferers, yes. The Dyson V15 has certified HEPA filtration, laser detection that reveals fine dust on hard floors, 60-minute runtime versus the Shark's 40 minutes, and a dedicated hair screw tool. For households without those specific needs, the $440 premium is hard to justify when the Shark handles most cleaning tasks at 90% of the performance.
The Dyson V15 is better for heavy pet hair shedding, particularly on upholstery and carpet. The hair screw tool's conical design prevents tangles completely in normal use. The Shark IZ462H handles moderate pet hair well with its PowerFins brushroll but requires occasional manual clearing with heavy shedding from large dogs. For homes with multiple heavy-shedding pets, the Dyson is the stronger choice.
Better, actually. The Shark IZ462H's Flex technology bends the handle 90 degrees to slide completely flat under furniture that sits 4 to 5 inches off the ground, including platform beds and low sofas. The Dyson V15 doesn't have this feature and requires a flat extension wand sold separately to achieve similar access.
Certified HEPA filtration captures 99.97% of particles at 0.3 microns, tested and certified to a specific standard. Shark's Anti-Allergen Complete Seal captures 99.9% of dust and allergens but is not independently certified to HEPA standards. For most households the difference is minor. For someone with diagnosed allergies, asthma, or sensitivities to fine particulate, certified HEPA is the better specification.
For mixed flooring (hardwood, tile, carpet), the Shark IZ462H's DuoClean PowerFins system is genuinely excellent. The dual brush roll design transitions between surfaces without any manual adjustment. The Dyson V15 Detect Plus is better suited to homes that are primarily hard floors, where its laser detection provides the most benefit.
Related reading: Dyson V15 Detect Plus Full Review | Shark IZ462H Full Review | Best Cordless Vacuums 2026