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Dyson V12 Detect Slim

Light, easy, and great on hard floors, but the bin is tiny

Our score
78/100
The Product Review scoreOur verdict from 8 expert reviews and 33,625 owner ratings and comments. High confidence. Loupe, our mascotLoupe's take: Experts and owners agree on this one. Who's Loupe?
Dyson V12 Detect Slim

Photo: Dyson

81Expert score8 expert reviews
84Owners score33,625 ratings & comments
58Reliability17% report problems
Based on
See how we scored it

Updated October 26, 2026

Seven of 8 expert sources tested the V12 Detect Slim hands-on, and they broadly agree it is a light, maneuverable vacuum that excels on hard floors, with an expert score of 81. Owners are positive too (owner score 84 from 507 comments): 45% praise the light weight and 36% the suction, while 16% complain about the small bin. Reliability is the weak spot, scoring 58, with 17% of owner comments mentioning failures and 5% describing a unit that broke or died. Retail ratings are strong overall (87 from 33,118 votes, with 21,772 five-star ratings), but smaller retailer listings average only 3.79 stars across 126 ratings, and battery opinions are split almost evenly (12% negative vs 11% positive).

Experts 81Owners 84
ExpertsOwnersEach expert review

What each expert concluded

8/10

A lightweight, easy-to-handle mid-range cordless stick that excels on bare floors and pet hair on upholstery, but is held back by a tiny dustbin, middling carpet results, poor stain cleaning, and some flimsy-feeling plastic.

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4.11/5

The reviewers bought and tested it, finding a lighter, smaller alternative to the V15 that delivers very strong suction, excellent hard-floor cleaning, and plenty of features, making it a top-ten cordless vacuum worth its high price.

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~8.5/10

The writer considers the V12 Detect Slim the best cordless stick vacuum available, delivering most of the V15's strengths at a lower price with a more comfortable button and lighter body, despite its small bin.

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4.1/5

A lightweight, hardwood-friendly Dyson with excellent filtration and great attachments, but its tiny dustbin, weaker carpet cleaning and fiddly maintenance make it worth buying only on sale or for light cleaning in small spaces.

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8/10

The writer loves the slim, compact V12 Detect Slim, calling it their dream vacuum for a small apartment despite the steep price, with the laser dust detection a standout feature.

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4.5/5

A lighter, cheaper alternative to the V15 that keeps the flagship green laser and screen features, trading some power and bin size for a compromise the reviewer finds easy to accept.

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4/5

A strong, lighter and cheaper alternative to the V15 Detect that keeps most of its headline features and cleans hard floors very well, held back mainly by a small, fiddly bin and less suction than pricier Dysons.

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~5/10

The page is mostly a product description and a lab-testing and survey framework, and the actual scores and conclusions are hidden behind a paywall, so no real verdict is given.

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Verdicts paraphrased; open a card to read the original. How we score

The verdict in 10 seconds

The Dyson V12 Detect Slim at work: a cordless vacuum cleaning a hardwood floor

A great fit if

  • You live in a smaller home or apartment with mostly hard floors
  • You want something light enough to carry up stairs and into the car
  • You have pets that shed on the couch and other upholstery

May not suit you if

  • Your home is mostly thick or deep-pile carpet
  • You'd rather not empty the bin during every cleaning session
  • Long-term durability is your top priority

What owners love and complain about

What they love

Lightweight45%
Suction36%
Battery11%
Pet hair10%
Value6%

What they complain about

Bin small16%
Battery12%
Value7%
Customer support5%
Broke or died5%

Share of 507 owner reviews and comments that mention each topic.

The short version

This is a slim, light stick vacuum that feels effortless to carry up stairs, into the car, or around a small apartment. Its standout is hard floors, where the green light shows dust you'd otherwise miss, and it handles pet hair on furniture well. The main catch is a very small bin that needs emptying often, plus only so-so results on thick carpet. It best suits smaller homes with mostly bare floors.

We researched 8 expert reviews, analyzed 33,625 owner ratings and comments across 12 sources, and cross-checked them into one verdict, so you don't have to.

Ratings across the web

4.2 / 5
★★★★★134 ratingsMay include close variants of this model
4.5 / 5
★★★★★32,984 ratingsCombined across sellers
3.8 / 5
★★★★★126 reviewsqvc.com, walmart.com, ebay.com
4.2 / 5
★★★★★807 reviewsReviews moderated by the brand
4.2 / 5
★★★★★507 owner commentsLong-term owners. Converted to stars from how positive their comments are
How buyers rated it
5★73%
4★16%
3★4%
2★2%
1★5%
29,876 star ratings across retailers

Shop ratings lean positive (happy buyers, brand-moderated stores); forums lean critical (people post problems). Our owners score weighs both equally.

Quick answers

Is the Dyson V12 Detect Slim the best cordless vacuum?

It depends on your home. It's a top pick for hard floors and small spaces, but it isn't the strongest choice for deep carpet.

Based on: One expert calls it the best stick; 5 of 8 note weaker carpet results.

Is the Dyson V12 Detect Slim one of the best cordless vacuum cleaners?

Yes, for lighter-duty cleaning. It's light, strong on bare floors, and comes with tools that handle hair well.

Based on: Expert score 81; 45% of owners praise its light weight.

Is the Dyson V12 Detect Slim the best rated cordless vacuum?

It's among the well rated ones. Most buyers are very happy with it, though a noticeable minority report problems over time.

Based on: Retail score 87 across 33,118 votes; 17% of owners mention failures.

How do you empty the Dyson V12 Detect Slim?

You point the bin into the trash and release it. It's quick and less messy than older designs, but hair and fluff sometimes need pulling out by hand.

Based on: Reviewers describe point-and-shoot emptying; some call it fiddly or unhygienic.

What cordless vacuum is best for a small apartment: is the V12 Detect Slim a good fit?

Yes. Its slim, compact build and light weight suit small spaces, and the small bin matters less when there's less floor to cover.

Based on: 5 of 8 experts list small homes or apartments as best fit.

How much does the Dyson V12 Detect Slim cost?

Usually $500–$650 in the US. Prices move with sales, so check the current price.

Based on: Prices quoted in expert reviews and at Amazon.com.

What does the Dyson V12 Detect Slim cost to run?

Mostly replacement parts and supplies

  • Bagless design keeps running costs low
  • Washable filter, with no stated replacement cost
  • Optional second swappable battery costs extra (price not stated)
Based on: Running costs and part lifespans reported in expert reviews.

Has the Dyson V12 Detect Slim been recalled?

No. We found no U.S. safety recalls for this model.

Based on: U.S. Consumer Product Safety Commission recall records.
Dyson V12 Detect SlimProduct Review score 78 · $500–$650
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