The Dyson PencilWash is Dyson’s latest super-slim electric mop designed for hard floors, weighing just 4.9 pounds total with a handle diameter under 4 centimeters. It represents a genuine breakthrough in miniaturization—fitting a motor, battery, and water tanks into a broom-like form factor that previous wet-dry cleaners couldn’t achieve. But breakthrough design doesn’t always translate to breakthrough usability, and the PencilWash proves that rule with frustrating clarity.
Key Takeaways
- Weighs 4.9 pounds total; hand weight on floor is just 0.38 kilograms, making it exceptionally maneuverable.
- Lies flat to 170 degrees, reaching 15 centimeters high for tight corners and under furniture.
- Two moisture modes only; lacks steam, foam, auto-adjust, or self-clean features found in competitors.
- Super-small tanks unsuitable for large homes or extensive hard-floor areas.
- Third model in Dyson’s wet-cleaner lineup, following the WashG1 launched in August 2024.
Dyson PencilWash Design: Miniaturization Done Right
The Dyson PencilWash achieves what seemed impossible: a motorized wet-floor cleaner that actually feels like a mop, not a bulky appliance. At 0.38 kilograms in hand, it glides across hard floors with minimal effort, pivoting smoothly into corners and tight spaces where traditional wet-dry vacuums simply cannot reach. The broom-shaped handle gives you the familiar grip of a conventional mop, which matters far more than most reviews acknowledge—your hand position directly affects how long you can clean without fatigue.
The flat-lying design is where the PencilWash genuinely shines. Tilting to 170 degrees and reaching just 15 centimeters high, it slides under sofas, beds, and radiators without contortion. That capability alone solves a real problem that bulkier competitors cannot address. The compact motor and battery fit entirely within the 1.5-inch handle, with water tanks integrated into the floorhead itself—a clever architecture that keeps the whole device proportional.
What the Dyson PencilWash Gets Wrong
Simplicity is sometimes a virtue in product design. In the PencilWash, it feels more like a limitation. The mop offers only two moisture modes—that is it. No automatic adjustment for different floor types, no steam or foam options, no strong suction for dried-on messes, and no self-clean cycle to refresh the tanks between uses. Competitors offer these features as standard; Dyson stripped them away entirely.
The tank capacity is the real problem. Those super-small tanks unsuitable for large homes mean you will be refilling and emptying constantly. If your hard flooring spans more than a few rooms, the PencilWash becomes a tedious exercise in repeated trips to the sink. The WashG1, Dyson’s larger wet cleaner, has a waste tank that is easier to clean because it is wider with no crevices—a practical advantage the PencilWash lacks. Tank access on the PencilWash mirrors the design difficulties of the Clean+Wash Hygiene, making maintenance annoying rather than straightforward.
Dyson PencilWash vs. the Competition
Comparing the PencilWash to other wet-dry cleaners reveals its trade-offs clearly. Bulkier competitors offer more suction power, more cleaning modes, and larger tanks—all things the PencilWash deliberately sacrificed for portability. That is not a weakness per se, but it is a choice that makes the device unsuitable for anyone cleaning large areas or dealing with stubborn, dried-on dirt.
Within Dyson’s own range, the WashG1 launched in August 2024 and remains the better choice for whole-home cleaning. The newer Clean+Wash Hygiene faces similar tank-access issues as the PencilWash, making neither ideal for frequent maintenance. The PencilWash’s companion, the PencilVac dry vacuum, offers 55 air watts of suction—low power suited only to hard floors, not carpet—and its angled floorhead misses edges unless you angle it just right. Together, they form a lightweight ecosystem for light cleaning, not a serious cleaning system.
Should You Buy the Dyson PencilWash?
The PencilWash answers a specific question: how do you clean hard floors in tight spaces without hauling out a heavy appliance? If that is your question, the answer is yes—this device solves it. But if your question is whether the PencilWash can handle whole-home cleaning, or if you have significant dried-on messes, or if you want features beyond basic wet and dry cleaning, the answer is no.
Dyson’s miniaturization is genuinely impressive. The engineering that fits a motor, battery, and tanks into a broom-thin handle represents real innovation. But innovation in form factor does not guarantee innovation in function. The PencilWash is a device for people with small hard-floor areas, high tolerance for frequent tank emptying, and comfort with basic cleaning modes. For everyone else, the WashG1 remains the better choice, despite its bulk.
Is the Dyson PencilWash worth the investment?
That depends on your home size and cleaning habits. For small apartments or homes with modest hard-floor areas, the PencilWash is worth considering. For larger homes or anyone with significant cleaning demands, the tank limitations make it impractical despite its elegant design.
Can the Dyson PencilWash clean carpet?
The Dyson PencilWash is designed specifically for hard flooring and handles both wet and dry dirt on hard floors. It is not suitable for carpet, making it a single-surface tool rather than a whole-home solution.
How does the Dyson PencilWash compare to the WashG1?
The PencilWash is lighter and more maneuverable, while the WashG1 has larger tanks and a waste tank that is easier to clean. Choose the PencilWash for tight spaces and light use; choose the WashG1 for larger areas and frequent cleaning.
The Dyson PencilWash is a clever device held back by practical limitations. Its breakthrough miniaturization deserves recognition, but do not let elegant engineering distract you from what the mop actually does—and more importantly, what it cannot do. Buy it for tight spaces and light cleaning. Buy something else if you need a serious hard-floor solution.
Where to Buy
Edited by the All Things Geek team.
Source: TechRadar
