Dyson V9 Submarine Review 2026: Wet and Dry Vacuum Worth It?

Are you tired of switching between a vacuum and a mop every time you clean your floors? The Dyson V9 Submarine promises to solve that problem with one machine. This cordless wet and dry vacuum combines Dyson’s powerful suction with a Submarine wet roller head that washes hard floors.

Dyson launched the V9 in June 2025. The Submarine variant quickly became a favorite at retailers like Costco. It weighs just 4.6 pounds and offers up to 40 minutes of runtime. The Hyperdymium motor spins at 120,000 rpm and delivers 100 Air Watts of fade-free suction.

But does it live up to the hype? Is it worth the price tag? We tested this vacuum and dug into hundreds of user reviews to give you a complete picture. This review covers everything from suction power and battery life to wet cleaning performance and value for money. Keep reading to find out if the Dyson V9 Submarine deserves a spot in your cleaning closet.

Key Takeaways

• The Dyson V9 Submarine is a 2-in-1 cordless vacuum that handles both dry vacuuming and wet floor washing. It uses a Submarine wet roller head for mopping and a Motorbar cleaner head for dry cleaning. This makes it a solid choice for homes with mostly hard floors.
• It weighs only 4.6 pounds, making it one of the lightest cordless stick vacuums on the market. You can clean for extended periods without arm fatigue. The lightweight build also makes it easy to store in small spaces.
• Battery life tops out at 40 minutes on a single charge using an advanced seven-cell lithium-ion battery. Boost mode cuts that time down significantly to around 8 minutes. Plan your cleaning sessions based on the power mode you need.
• The LCD screen shows battery life and performance data in real time. You can see remaining runtime, suction mode, and filter maintenance alerts. This feature helps you manage your cleaning sessions more efficiently.
• Costco offers the V9 Submarine Extra bundle with an additional wet cleaner head, often priced around $329 to $399. This represents strong value compared to the V15s Detect Submarine at around $750. Budget-conscious buyers should consider this bundle.
• The dust bin is smaller than previous Dyson models at 0.38 liters. This means more frequent emptying during larger cleaning jobs. It is a trade-off for the ultra-light design.

Dyson V9 Submarine Overview and First Impressions

The Dyson V9 Submarine sits between the V8 and V11 in Dyson’s cordless vacuum lineup. It launched in mid-2025 as a lightweight, versatile cleaning solution for modern homes. The machine feels premium the moment you take it out of the box.

The build quality matches what you expect from Dyson. Every part clicks together with a satisfying snap. The wand is sturdy but light. The trigger mechanism feels responsive under your finger.

The Submarine variant adds a wet roller head to the standard V9 Motorbar package. This head attaches to the same wand and lets you switch from dry vacuuming to wet floor washing in seconds. The swap process takes less than 10 seconds once you get the hang of it.

First impressions from most users highlight the weight. At 4.6 pounds, this vacuum barely registers in your hand. You can push it around the house for the full 40-minute battery life without feeling tired. That weight reduction is a clear advantage over heavier models like the V15s.

Design and Build Quality

The Dyson V9 Submarine has a sleek, modern design in dark gray. The overall silhouette is slimmer than older Dyson cordless models. Dyson clearly focused on making this unit compact and easy to store.

The main body houses the motor, filter, and dust bin in a tight package. The cyclone assembly sits on top and separates dust and debris efficiently. The bin releases with a single button press for hygienic emptying.

Materials feel solid throughout. The plastic body does not flex or creak during use. The joints between the wand and cleaner head stay firm even during aggressive scrubbing with the Submarine head.

The wall-mounted dock keeps everything organized. You can charge the vacuum and store it vertically. This saves floor space in closets or utility rooms. The charging dock also holds an extra attachment for quick access.

One minor design concern is the small dust bin capacity of 0.38 liters. Larger homes may require you to empty the bin mid-session. This is the price you pay for such a lightweight build.

Suction Power and Cleaning Performance

The Dyson V9 Submarine delivers 100 Air Watts of suction powered by the Hyperdymium motor. This motor spins at up to 120,000 rpm. It creates strong, consistent airflow that picks up fine dust and larger debris from hard floors and carpets.

Three power modes give you control over suction strength. Eco mode extends battery life for light cleaning tasks. Auto mode adjusts suction based on floor type and dirt level. Boost mode cranks up power for stubborn dirt and deep carpet cleaning.

The Motorbar cleaner head handles both hard floors and carpets. Stiff nylon bristles dig into carpet fibers. Soft carbon fiber filaments capture fine dust from hard surfaces. The anti-tangle design prevents hair from wrapping around the brush bar.

On hard floors, the V9 picks up cereal, pet hair, and fine dust with one pass. Carpet performance is good for a lightweight vacuum, though it does not match the deep-cleaning ability of heavier models like the V15 Detect. Users with thick, high-pile carpets may want a more powerful option.

Top 3 Alternatives for Dyson V9 Submarine

If the Dyson V9 Submarine does not fit your needs or budget, these three alternatives offer strong wet and dry cleaning performance.

The Dyson V15s Detect Submarine is the premium option. It delivers 240 Air Watts, up to 60 minutes of runtime, and includes a laser dust detection system. This model costs more but offers significantly more suction and a larger dust bin.

The Tineco Floor One S7 Pro is a dedicated wet-dry floor cleaner. It features self-cleaning, centrifugal drying, and dual-sided edge cleaning. It does not vacuum carpets, but it excels at washing hard floors at a lower price point.

The Dreame H14 Pro offers 180-degree lie-flat cleaning, 18,000 Pa suction, and hot water washing at 140°F. It features fast hot air drying in 5 minutes. This is an excellent all-around wet-dry vacuum for hard floor homes.

Submarine Wet Roller Head Performance

The Submarine wet roller head is the standout feature of this vacuum. It transforms the V9 from a standard cordless vacuum into a hard floor washer. The roller head uses clean water to wash floors and picks up spills, grime, and sticky messes.

The system keeps clean water and dirty water separate. A built-in reservoir feeds fresh water to the roller. Used water gets pulled into a separate dirty water tank. This means you wash with clean water from start to finish.

Performance on spills is impressive. Dried coffee, juice stains, and muddy paw prints come up with a few passes. The roller applies consistent pressure across the floor surface. It does not leave streaks or wet puddles behind.

The wet roller head works best on sealed hard floors like tile, vinyl, laminate, and sealed hardwood. Dyson does not recommend using it on unsealed wood or very rough surfaces. The cleaning path is roughly 9.8 inches wide, which covers a decent area per pass.

One limitation is the small water reservoir. You will need to refill during larger cleaning jobs. The Costco “Extra” bundle helps by including a second Submarine head, so you can have one ready to go.

Battery Life and Charging

The Dyson V9 Submarine uses an advanced seven-cell lithium-ion battery. It provides up to 40 minutes of runtime on a single charge. This matches the runtime of the older V8 model while charging much faster.

In Eco mode, you can get the full 40 minutes. Auto mode typically delivers around 25 to 30 minutes depending on floor type and dirt level. Boost mode drops runtime to about 8 minutes. This short burst is useful for spot cleaning or deep carpet passes.

Charging takes approximately 3.5 hours from empty to full. That is a clear improvement over the V8, which takes around 5 hours. The wall-mounted dock charges the battery while storing the vacuum upright.

The LCD screen displays the exact remaining battery percentage. This helps you plan your cleaning sessions. You will not get caught mid-room with a dead vacuum. The screen also shows which power mode you are using.

For larger homes, the 40-minute runtime may feel tight. You may need to plan cleaning in stages or invest in a second battery if Dyson offers one separately for this model.

LCD Screen and Smart Features

The built-in LCD screen on the Dyson V9 Submarine adds a layer of smart functionality. It sits on the back of the main unit and provides real-time data as you clean.

The screen displays three key metrics. First, it shows remaining battery life as a countdown timer and percentage. Second, it indicates the current suction mode. Third, it provides filter maintenance reminders so you know when to wash or replace the filter.

The display is bright and easy to read in various lighting conditions. You can glance at it mid-clean without stopping. The interface uses simple icons and numbers that anyone can understand.

Some Dyson models like the V15 Detect include advanced particle counting and size detection. The V9 does not include that feature. The LCD screen here is more basic but still very useful for everyday cleaning management.

The smart features reduce guesswork. You always know how much cleaning time you have left. You always know if your filter needs attention. These small details make the V9 feel more premium than its price point suggests.

Weight and Maneuverability

At 4.6 pounds, the Dyson V9 Submarine is one of the lightest stick vacuums Dyson has ever made. This weight includes the main body, motor, and battery. Add the cleaner head and wand, and it still feels remarkably light.

The lightweight build makes a real difference during daily use. You can lift it with one hand to clean shelves, ceiling corners, and car interiors. Switching between floors and stairs requires minimal effort.

The swivel head on both the Motorbar and Submarine attachments allows smooth 180-degree turns. You can steer around furniture legs, under tables, and along baseboards without awkward repositioning.

The low-profile design lets you slide the vacuum under most sofas and beds. You will not need to move furniture to reach hidden dust bunnies. This flat-angle cleaning ability is a significant advantage over upright vacuums.

Users with joint pain, arthritis, or limited upper body strength will appreciate this vacuum. The combination of light weight and good balance reduces strain on wrists and shoulders during extended cleaning sessions.

Filtration System and Allergen Control

The Dyson V9 Submarine includes a whole-machine HEPA filtration system. This system captures 99.97% of particles as small as 0.3 microns. It traps dust mites, pollen, pet dander, and other common allergens.

The filter sits at the top of the cyclone assembly. Air passes through the cyclone separation system first, then through the HEPA filter before exiting the machine. This two-stage process ensures that the air leaving the vacuum is cleaner than the air in most rooms.

The filter is washable and reusable. Dyson recommends rinsing it under cold water once a month and allowing it to dry for at least 24 hours. You do not need to buy replacement filters often, which saves money over time.

For allergy sufferers and pet owners, this filtration system is a major selling point. The sealed design prevents dust from leaking back into your home. No bagged vacuum can offer cleaner exhaust air than a properly sealed HEPA system.

The LCD screen reminds you when the filter needs cleaning. This automated reminder helps you maintain peak filtration performance without keeping a mental calendar.

Noise Level and User Comfort

The Dyson V9 Submarine operates at a reasonable noise level for a cordless vacuum. In Eco mode, the sound is subdued enough for daytime cleaning without disturbing others. Auto mode produces moderate noise. Boost mode is noticeably louder but still below the level of most upright vacuums.

The trigger-style power button means the motor only runs when you squeeze. This on-demand operation reduces overall noise exposure during a cleaning session. You can pause instantly by releasing the trigger.

The ergonomic handle places your wrist in a natural, comfortable position. The balance point sits close to your hand, so the vacuum does not tip forward or backward. This reduces wrist strain during long sessions.

Vibration is minimal. The Hyperdymium motor runs smoothly at high speeds without transmitting harsh vibrations to the handle. This smooth operation makes cleaning feel less like a chore.

The vacuum is quiet enough for apartment living. You can clean in the evening without worrying about disturbing neighbors through walls or floors.

Comparing the V9 Submarine to the V15s Detect Submarine

The Dyson V15s Detect Submarine is the obvious comparison. It costs nearly twice as much and offers more features. Understanding the differences helps you decide which model fits your needs.

The V15s delivers 240 Air Watts of suction versus 100 Air Watts on the V9. This means the V15s cleans carpets much more effectively. It also picks up finer particles from hard floors with greater force.

Runtime on the V15s stretches to 60 minutes compared to 40 minutes on the V9. The V15s also has a larger dust bin and a more advanced LCD screen with particle counting technology. The laser detects microscopic dust that you cannot see with the naked eye.

The V9 wins on weight and portability. At 4.6 pounds, it is significantly lighter than the V15s. People who prioritize ease of use and light cleaning sessions will prefer the V9. The price difference also matters, especially for budget-conscious buyers.

Both vacuums use the Submarine wet roller head for hard floor washing. The wet cleaning performance is similar between the two. If wet cleaning is your main priority and you have mostly hard floors, the V9 offers great value.

Who Should Buy the Dyson V9 Submarine?

The Dyson V9 Submarine fits a specific type of buyer. It is ideal for people who live in small to medium-sized homes with mostly hard floors. If you have a mix of tile, hardwood, and laminate, this vacuum handles all of them well.

Pet owners benefit from the anti-tangle Motorbar head and HEPA filtration. The Submarine head picks up wet pet messes that a standard vacuum would smear around. This dual capability saves time and reduces the number of cleaning tools you need.

People with physical limitations will appreciate the 4.6-pound weight. The light build and good balance make it accessible to nearly everyone. Cleaning should not cause pain, and this vacuum respects that.

The V9 Submarine is not ideal for large homes with heavy carpeting. The 40-minute runtime and 100 Air Watts of suction may fall short for deep carpet cleaning. Homes over 2,000 square feet may need a more powerful option or a second battery.

Budget-conscious buyers should look at the Costco Submarine Extra bundle. It includes an additional wet cleaner head and often sells for around $329 to $399. This bundle offers strong value for what you get.

Maintenance and Long-Term Care

Keeping the Dyson V9 Submarine in top condition requires minimal maintenance. A few simple habits will extend the life of this vacuum and keep it performing at its best.

Wash the HEPA filter once a month under cold running water. Let it dry completely for 24 hours before reinstalling. A damp filter restricts airflow and reduces suction power. Never put the filter in a washing machine or dryer.

Empty the dust bin after every use. The small 0.38-liter bin fills up fast, especially in homes with pets. Regular emptying prevents clogs and keeps suction strong. The hygienic ejection mechanism makes this a quick, mess-free task.

Clean the Submarine wet roller head after each wet cleaning session. Rinse the roller under warm water and remove any debris. Clean the dirty water tank to prevent odor and bacteria buildup. Let all wet components air dry before storing.

Check the brush bar on the Motorbar head for tangled hair or string every few weeks. The anti-tangle design handles most hair, but long strands may occasionally need manual removal.

Dyson offers a 2-year limited warranty with lifetime Dyson support. This coverage gives you peace of mind. If something breaks within the warranty period, Dyson’s support team can help with repairs or replacements.

Pricing and Where to Buy

The Dyson V9 Motorbar retails for around $599.99 at full price from Dyson’s website. The Submarine variant is often bundled at different retailers with varying accessories and prices.

Costco sells the V9 Submarine Extra bundle with an additional wet cleaner head. This bundle has been spotted at prices between $329 and $399, making it one of the best deals available. Costco’s return policy also adds extra buyer protection.

The V9 Motorbar is available on Amazon under ASIN B0FCVM3PZN. Prices on Amazon fluctuate, so watch for sales during events like Prime Day or Black Friday. Price tracking tools like CamelCamelCamel help you find the lowest price.

Best Buy carries the V9 in limited edition colors. These versions may cost slightly more but offer the same internal specs. Color choice is purely cosmetic.

Compared to the V15s Detect Submarine at around $750, the V9 Submarine offers significant savings. You lose some suction power and runtime, but you gain a much lighter vacuum at a friendlier price. For most homes with hard floors, the V9 delivers excellent value.

Final Verdict on the Dyson V9 Submarine

The Dyson V9 Submarine earns a strong recommendation for a specific audience. It is a lightweight, versatile cordless vacuum that handles both dry and wet cleaning with ease. The 4.6-pound weight sets it apart from nearly every competitor.

The Submarine wet roller head works well on hard floors. It removes spills, stains, and everyday grime without leaving streaks. Paired with the Motorbar head for dry vacuuming, you get a genuine all-in-one cleaning tool.

The 100 Air Watts of suction and 40-minute runtime are adequate for small to medium homes. The LCD screen, HEPA filtration, and anti-tangle brush bar add real value. These features make daily cleaning faster and less frustrating.

The downsides are real but manageable. The small dust bin, limited boost mode runtime, and lower suction than premium models are clear compromises. If you need maximum carpet cleaning power, look at the V15s Detect Submarine instead.

For hard floor homes, apartments, and anyone who values light weight above all else, the Dyson V9 Submarine delivers. It is not the most powerful Dyson. But it might be the most practical one for everyday life.

Frequently Asked Questions

Is the Dyson V9 Submarine good for pet hair?

Yes, the Dyson V9 Submarine handles pet hair well. The Motorbar cleaner head features an anti-tangle design that prevents hair from wrapping around the brush bar. The HEPA filtration system captures pet dander and allergens effectively. The Submarine wet head also picks up wet pet messes from hard floors.

How long does the Dyson V9 Submarine battery last?

The battery lasts up to 40 minutes in Eco mode. Auto mode provides around 25 to 30 minutes. Boost mode delivers maximum suction but only lasts about 8 minutes. Charging takes approximately 3.5 hours from empty.

Can the Dyson V9 Submarine clean carpets?

Yes, the V9 Submarine can clean carpets using the Motorbar cleaner head. It works well on low to medium-pile carpets. However, its 100 Air Watts of suction may not deep-clean thick, high-pile carpets as effectively as the V15 or V15s models.

Is the Dyson V9 Submarine available on Amazon?

The Dyson V9 Motorbar is available on Amazon under ASIN B0FCVM3PZN. The Submarine-specific bundle with the wet roller head is more commonly found at Costco and Dyson’s own website. Check Amazon regularly as availability may change.

How does the Dyson V9 Submarine compare to the V15s Detect Submarine?

The V15s offers 240 Air Watts of suction, 60 minutes of runtime, and a laser dust detection system. The V9 offers 100 Air Watts, 40 minutes of runtime, and a lighter 4.6-pound body. The V9 costs significantly less and works great for hard floors. The V15s is better for mixed flooring and deep carpet cleaning.

What floors can the Submarine wet roller head clean?

The Submarine wet roller head works on sealed hard floors including tile, vinyl, laminate, and sealed hardwood. Dyson does not recommend using it on unsealed wood, rough stone, or carpeted surfaces. Always check your floor manufacturer’s guidelines before wet cleaning.

Is the Costco V9 Submarine Extra bundle worth it?

The Costco bundle is one of the best deals available for this vacuum. It includes an additional wet cleaner head and often sells for $329 to $399. The extra head means less downtime between cleaning sessions. Costco’s generous return policy adds further value.

Last update on 2026-04-14 / Affiliate links / Images from Amazon Product Advertising API