Home » Product Reviews » Floorcare » Vacuum Cleaners » Cordless Vacuum Cleaners » Dyson V15s Detect Submarine™ Wet & Dry Cordless Vacuum Cleaner review
The Dyson V15s Detect Submarine is a high-end cordless vacuum cleaner that also washes hard floors, aiming to replace both your stick vac and traditional mop. It combines Dyson’s powerful suction with a dedicated wet roller head for tackling everyday dirt, spills and stains.
This is a premium choice in the cordless vacuum category, firmly at the top end of typical price ranges. In return, you get Dyson’s latest cleaning heads, multi-stage filtration and an LCD display, along with a strong set of tools. With a 4.7 out of 5 user rating from well over a thousand reviews, it’s clearly impressed most owners.
If you want a single, do-it-all cleaning system and are prepared to pay for the best that Dyson currently offers, the V15s Detect Submarine is a very serious contender.
The Dyson V15s Detect Submarine is ideal for busy households that want one machine to handle almost everything. If your home is a mix of hard floors and rugs, and you’re constantly dealing with crumbs, pet hair and the odd spill, the combination of dry vacuuming and wet washing in one cordless unit makes a lot of sense.
It suits medium to larger homes thanks to its powerful motor and up to 60 minutes of run time in the most efficient mode. That gives you enough battery life for whole-home cleans if you’re not constantly using Boost. The wall-mounted charging dock also makes it a good fit if you like to grab-and-go rather than drag a bulky corded model out of a cupboard.
This is a premium, not a budget, purchase. It’s best for buyers who would rather invest once in a top-tier cleaner than compromise on power or features. If this is your first cordless, the clear LCD display and easy-empty bin help keep it approachable, but it will particularly appeal to those upgrading from an older Dyson and wanting the latest technology.
Allergy sufferers and pet owners will appreciate the HEPA filtration, multi-stage dust capture and the de-tangling Motorbar and Hair Screw tools, which are designed specifically to deal with long hair and pet fur without constant cutting and unclogging.
The standout advantage of the V15s Detect Submarine is its dual role: it’s both a powerful cordless vacuum and a hard floor washer. The dedicated Submarine wet roller head applies clean water across its full width and continuously extracts dirty water and debris, so you’re always washing with fresh water rather than pushing muck around the floor.
Suction is seriously strong for a cordless, driven by Dyson’s Hyperdymium motor spinning up to 125,000rpm and cyclonic technology. The result is excellent pickup on carpets and hard floors, helped by the Digital Motorbar cleaner head which automatically de-tangles hair as it cleans.
The Fluffy Optic cleaner head is another highlight, projecting a precisely angled beam of light along the floor so you can actually see the fine dust and crumbs you’d otherwise miss. Paired with the clear LCD display that shows mode, remaining run time and alerts, it makes cleaning feel more controlled and satisfying.
You also get a very complete tool kit: a Hair Screw tool for upholstery and pet beds, a pet turbo brush, crevice and combination tools, plus a wall-mounted charging dock and separate portable charger. The washable filter and bagless 0.77-litre bin keep ongoing costs low and maintenance straightforward.
The obvious drawback is price. The V15s Detect Submarine sits at the premium end of the cordless vacuum market, and you are paying a noticeable premium over simpler cordless sticks that only vacuum.
Battery run time is quoted as up to 60 minutes, but that’s in the most economical mode. Use Boost regularly or the more demanding heads and you’ll see that drop, which might be a frustration in very large homes that need deep cleaning in one go.
The 0.77-litre bin is reasonable but not huge, so if you have lots of shedding pets or a very dusty environment you may find yourself emptying it mid-clean. The added wet cleaning hardware and accessory bundle can also make storage a little more involved than with a basic cordless – you’ll want to make good use of the wall dock.
Finally, the warranty is a standard 2 years. For the price, some buyers might hope for a longer guarantee for extra peace of mind.
Day to day, the Dyson V15s Detect Submarine is all about convenience. Being cordless, it’s ready to go from the wall-mounted dock with no cables to trip over. The slim body and articulated heads make it easy to steer under furniture and around table legs, so quick daily cleans feel far less of a chore.
Switching between dry vacuuming and wet washing involves changing the cleaner head, which clicks on and off the wand easily. The Submarine wet roller is designed to pick up both wet and dry messes in one pass, so spills in the kitchen or muddy footprints in the hallway can be sorted without separate mopping.
The LCD display is genuinely helpful: it shows which mode you’re in, how much run time you have left and any maintenance prompts, reducing guesswork. With three power modes (including an Eco setting), you can balance suction and battery life depending on the job.
Emptying the 0.77-litre bin is straightforward thanks to the easy-empty mechanism that ejects debris in one motion, and the washable HEPA filter means less money spent on consumables. Because it can be wall mounted and comes with a charging dock and extra charger, it slots neatly into a utility room or cupboard, ready for the next clean.
On performance, the V15s Detect Submarine is among the strongest cordless vacuums available. The Hyperdymium motor and cyclonic technology deliver powerful, consistent suction across different floor types, while the Multi-Staged Filtration system and HEPA filter help capture fine dust and allergens before air is expelled back into the room.
The Submarine wet roller head is a key feature: it uses eight precise hydration points to distribute clean water evenly over the roller, so the entire width of the head is actively washing. As it rotates, dirty water and debris are continuously extracted from the roller, improving hygiene and reducing the chances of streaky, smeared floors.
For dry cleaning, the Digital Motorbar cleaner head automatically detangles hair as you go, so you spend less time cutting strands from the brush bar. The Hair Screw tool and pet turbo brush extend that capability to sofas, mattresses, stairs and car interiors, which is particularly valuable in homes with pets or long-haired occupants.
The Fluffy Optic cleaner head is another premium touch. Its angled beam of light reveals the fine dust on hard floors that normal lighting hides, encouraging more thorough cleaning. Combined with three power modes (including Boost for stubborn dirt and Eco for extended run time) and an LCD display that gives real-time feedback, it feels like a very modern, smart cleaning system.
Supporting features such as the easy-empty dustbin, washable filter, wall-mountable dock and separate charger round out an already impressive spec sheet. Compared with many cordless models in this category, the V15s Detect Submarine offers a broader mix of wet and dry functionality, advanced heads and user-friendly touches.
There’s no getting away from the fact that the Dyson V15s Detect Submarine is a premium-priced cordless vacuum. You can find many cheaper cordless sticks if you only need basic dry vacuuming, and some buyers will understandably balk at paying this much for a household appliance.
However, you’re not just paying for a badge. You’re getting Dyson’s top-tier motor, advanced filtration, a full set of specialist heads and, crucially, integrated hard-floor washing. For households that might otherwise buy a separate mop system or hard-floor cleaner, rolling these roles into one device can help justify the investment.
The strong user rating of 4.7 out of 5, backed up by a large number of reviews, suggests that most owners feel they’ve had good value in terms of performance and convenience. The washable filter, bagless design and comprehensive tool kit also help reduce ongoing costs.
If budget is tight or you live in a small home with mostly carpet and few hard floors, a simpler cordless may offer better value. But for those who want a top-of-the-line, do-it-all cordless cleaner, the V15s Detect Submarine earns its premium positioning.
The Dyson V15s Detect Submarine is an impressive all-rounder that combines serious cordless vacuum performance with genuine hard floor washing. Its powerful suction, clever Fluffy Optic light, de-tangling heads and effective wet roller make it a compelling one-stop cleaning solution for busy, modern homes.
It’s undeniably expensive, and the quoted run time assumes you’ll spend much of your cleaning in Eco mode, so it may be overkill for smaller flats or very occasional use. The standard 2-year warranty also isn’t as generous as some might hope at this price.
For medium to large households, especially those with pets, children or lots of hard flooring, it’s one of the best-featured cordless vacuums you can buy right now. If you’re prepared to invest, the V15s Detect Submarine should significantly cut down on both vacuuming and mopping time, and make the whole process feel more efficient and satisfying.