Choose the Dyson V15s Detect Submarine if you want top-tier cordless vacuuming plus light mopping in one compact tool. Skip it if you need a true wet-dry vac for large spills, deep grime, sealed tanks, or low maintenance.
Best for
Best for mixed-floor homes or small spaces where one compact cordless tool can handle excellent dry vacuuming plus light, regular mopping. It also fits users who value dust illumination, smart suction adjustment, and a broad tool kit.
Not for
Not for buyers who need a true wet-dry vacuum that handles large wet-solid spills, deep grime, or mostly hard-floor messes with minimal cleanup. It is also a poor fit for tight budgets or users bothered by trigger operation.
Verdict
Reviewers largely agree that the Dyson V15s Detect Submarine is an excellent cordless vacuum first and a useful but imperfect mop second. The dry-vac side earns the strongest praise for suction, carpet and hard-floor pickup, debris illumination, filtration, attachments, and runtime. The tradeoff is the Submarine wet roller: it helps with light mopping, small spills, paw prints, and many stains, but it cannot vacuum and mop at the same time, struggles with larger wet-solid messes, and can leave streaks or dirty-water spills. Its compact, multi-tool design makes sense for mixed-floor homes, yet the high price, small tanks, trigger operation, and manual mop cleanup keep it from feeling like a fully polished wet-dry replacement.
Filtration / Dust Containment: 4.8, based on 4 reviews
Filtration and dust containment drew strong praise, with reviewers describing the filtration as excellent and the system as keeping fine flour or microscopic dust well contained.
Reviewers consistently praised the vacuuming side as powerful, with strong suction and airflow across general cleaning, carpets, hard floors, and hard-to-reach areas.
The accessory set was widely praised as versatile and complete, with multiple cleaning heads and specialty tools for floors, crevices, hair, stairs, and upholstery.
Pet-related feedback was positive: dog owners liked the mop option for paw prints and reviewers found pet hair pickup strong, though hair wrap still required attention in some tests.
Maneuverability and Handling: 4.4, based on 9 reviews
Maneuverability was mostly praised for swivel, lay-flat ability, easy gliding, and small head size, though some reviewers felt effort or fatigue on certain surfaces.
AI, Smart, App and Automation: 4.4, based on 7 reviews
Smart features were praised for auto suction adjustment, battery efficiency, particle detection, and display feedback, though there was no app-centered praise.
Hard Floor — Large Debris Intake: 4.3, based on 6 reviews
Large hard-floor debris performance was mixed: dry vacuum heads often performed very well, but the mop head struggled with cereal, rice, and large pieces.
Overall impressions were positive but qualified: reviewers loved the vacuum and versatility, while the mop, maintenance, tanks, and price created tradeoffs.
Setup ranged from very easy to confusing: several reviewers assembled it quickly, while others needed manuals, videos, or clearer instructions for the Submarine head.
Tool changes were usually quick and easy, but several reviewers disliked the extra reconfiguring needed because vacuuming and mopping require separate heads.
Aesthetic design and finish: 3.8, based on 2 reviews
Design comments leaned positive on the colorful, quirky Dyson styling, though one reviewer felt the plastic mop head looked more toy-like than premium.
Mopping performance was useful for light cleaning, small spills, and general maintenance, but reviews agreed it is not a full true wet-dry or deep-clean replacement.
Value was one of the most divided areas: reviewers liked the added mop at Dyson-tier performance, but repeatedly flagged the high price or weak mop premium.
Storage footprint and upright-stand stability: 3.2, based on 6 reviews
Storage feedback was split: the compact attachment system helped in small spaces, but the vacuum is not freestanding and several reviews complained about attachment or dock storage.
Liquid delivery feedback was mixed: some liked the controlled water output, while others disliked the single wet mode and lack of water-flow adjustment.
Crevice / Groove Pickup (Hard Floors): 3.0, based on 2 reviews
Crevice and groove pickup was mixed, with one review praising nooks-and-crannies cleaning but lab testing showing weak deep-crevice pickup from the mop head.
Water tank feedback was mixed to negative: reviewers liked the reach of the small tank in some rooms, but repeatedly called the reservoirs small or spill-prone.
Suitability for heavy-duty use: 2.5, based on 2 reviews
Heavy-duty suitability was limited; reviews repeatedly framed the mop as better for light, regular cleaning than deep grime or full mop-and-bucket replacement.
Clogging and debris prevention: 2.3, based on 6 reviews
Debris handling through the mop head was a recurring weakness, especially with dry debris, liquid mixed with solids, cereal, small debris, or wand blockages.
Dirty-water sensing was a clear weakness in TechRadar's review because the display only showed clean-water level, not dirty-water buildup.
Compared With Category Average
Compared with other Stick Vacuums & Electric Brooms, this product is above average in Support and Reliability, Headlight and LED lights, Debris illumination, near average in Maintenance requirements, Runtime, below average in Steam Cleaning, Dirty water sensor, Self-cleaning cycle.
Better: liquid-solid spillsTechRadar says the WashG1 is better suited than the Submarine for liquid-solid spills.
FAQ
Does the Dyson V15s Detect Submarine vacuum and mop at the same time?
No. Reviews repeatedly describe it as a Dyson stick vacuum with a separate wet roller head, so you vacuum first, switch attachments, and then mop.
How strong is it as a regular cordless vacuum?
Very strong. Reviewers consistently praised suction, carpet pickup, hard-floor pickup, filtration, and the Fluffy Optic dust-revealing head.
Is the Submarine mop head good for stains and spills?
It is useful for light mopping, paw prints, small liquid spills, and many stains. It is much less convincing with large wet spills, wet-solid messes, deep grime, or full-house heavy mopping.
Are the water tanks a problem?
Several reviewers said the clean and dirty water tanks are small. The bigger complaint was the unsealed dirty-water area, which could spill or leave dirty streaks.
How much maintenance does it need?
Dry-vac maintenance is generally straightforward, but the wet head needs to be rinsed, emptied, dried, and reassembled after use. Reviewers repeatedly missed an auto self-cleaning cycle.
Is it good for pet owners?
Mostly yes. Reviewers praised pet hair pickup, dog-bed and paw-print cleaning, and anti-tangle tools, though long hair could still wrap or require manual clearing.
Sample Expert Reviews We Analyzed
These are a few of the reviews included in our analysis.
Choose the Dyson V8 Animal for a lightweight cordless vacuum that reviewers say handles pet hair, dust, stairs, cars, and small homes easily. Skip it for whole-house deep cleans, big...
Pros: Suction and Airflow, Noise level
Cons: Hard Floor — Large Debris Intake, Suitability for heavy-duty use
Choose the Tineco Pure ONE S12 for smart suction, strong carpet and pet-hair pickup, and lots of tools. Skip it if you need a large bin, simple storage, low price,...
Choose the Dreame R10 if you want strong suction, LED-lit cleaning, easy handling, and good value for everyday floors and pet hair. Skip it if you need quiet turbo cleaning,...
Choose the Narwal S20 Pro for hard-floor homes that need strong one-pass pickup, edge cleaning, quiet self-drying, and light handling. Skip it if reverse cleaning, LED headlights, rug cleaning, or...
Pros: Pet-Ready Features, Noise level
Cons: Reverse cleaning performance, Suitability for heavy-duty use