Roborock continues its expansion in the vacuum cleaner market with the F25 Ultra, a steam mop that aims to redefine industry standards. This high-end steam mop combines three distinct cleaning technologies: high-temperature steam, hot water, and traditional mopping, along with a powerful 22,000 Pa suction. A promising device on paper, but one that also reveals some limitations in practice. Discover our comprehensive analysis after several weeks of intensive use.
This cordless vacuum cleaner is positioned as the brand's technological flagship in this cleaning segment. Beyond its multiple cleaning modes, Roborock incorporates advanced features such as a steam self-cleaning system, motorized wheels with intelligent assistance, and even remote control via an app. Is this enough to appeal to demanding users seeking versatility? Our verdict after dozens of hours of testing on various floor types and dirt levels.
Table of Contents
Roborock F25 Ultra Design and Construction
Aesthetics and Ergonomics
The Roborock F25 Ultra robot vacuum cleaner sports an all-black design accented with chrome details, giving it a decidedly modern look. Unlike robot vacuums, which are often offered in white, this color choice proves judicious for a mop, minimizing the visible appearance of streaks and dust on exposed surfaces.
This steam mop weighs 5.5 kg, a weight that might seem substantial but is completely imperceptible in use. This feat is due to its clever weight distribution: the one-liter clean water tank is positioned at the bottom of the unit, shifting the center of gravity towards the floor. The user only handles the lightweight handle, making this mop a surprisingly maneuverable cleaning companion.
F25 Ultra Control Interface
The handle of the Roborock floor mop features three strategically positioned physical buttons. The first turns the device on and off. The second allows you to navigate between the four available cleaning modes. The third activates the self-cleaning cycle. These controls are displayed on an integrated color screen that clearly shows the selected mode, although its interface remains relatively simple compared to some competitors on the market.
Cleaning Head and Brush
The design of the cleaning head demonstrates careful consideration. Six projection nozzles are integrated directly into the chassis, angled at 48 degrees towards the floor to optimize steam coverage. This arrangement ensures even distribution across the entire passage width.
The scrubbing roller can be removed with one hand thanks to an intuitive clip system. Inside, the drive motor is integrated directly into the brush, a technical solution that improves rotational efficiency while freeing up space for ancillary mechanisms. Roborock has developed a dual anti-tangle system: a smooth metal strip applies constant pressure to the roller to scrape away wet dirt, while 141 small yellow teeth cut and vacuum up hair and pet fur. This design aims to prevent unsightly marks on the brush that could transfer to the floor.
LED lighting
Light-emitting diodes (LEDs) are positioned at the front of the Roborock's cleaning head. They project a beam of light that effectively reveals dust and fine particles in dimly lit areas. This feature is particularly useful when cleaning under furniture or in dark rooms, where it allows you to clearly see the dirt that needs to be cleaned.
FlatReach 2.0 Technology
The vacuum cleaner incorporates the second generation of FlatReach technology , allowing it to lie completely flat with a final height of 12.5 centimeters. An internal gyroscope automatically detects this tilt and adjusts the suction power accordingly to maintain optimal performance. A small wheel positioned at the rear of the chassis facilitates movement in a horizontal position while protecting delicate floor coverings from potential scratches.
Multi-Temperature Cleaning System
The Roborock F25 Ultra stands out for its ability to generate steam at 150 degrees Celsius from its heating element. This high temperature allows it to remove stubborn stains that resist traditional methods. However, thermal imaging measurements taken during our tests revealed that the temperature at floor level fluctuates between 55 and 60 degrees Celsius, which is still more than sufficient to loosen dirt without damaging floor coverings.
The system requires approximately 50 seconds to one minute of preheating before reaching its optimal temperature. During this initial phase, the appliance remains fully functional in conventional mode, thus preventing any interruption to the cleaning process. Once the steam is activated, the six nozzles project a constant and powerful stream, visible to the naked eye under certain lighting conditions.
The performance of this mode proves impressive when tackling even the toughest challenges: dried-on chocolate powder, ingrained dirt, and hardened butter on tiles. Dirt that would normally require several passes or manual scrubbing disappears in just one or two strokes. Steam excels particularly at cleaning tile grout, penetrating the spaces where traditional rollers struggle to reach effectively.
However, optimal use of this method requires adjusting your movement speed. Unlike standard cleaning where you can move quickly, steam cleaning requires a more measured pace to allow the high temperatures time to work on the dirt. This time constraint can be frustrating during daily cleaning sessions where efficiency is paramount.
Hot Water Mode: The Ideal Compromise
The WaveFlow system propels water heated to 86 degrees Celsius directly onto the rotating brush. Measurements taken on the roller surface confirm temperatures between 55 and 56 degrees Celsius. This mode offers a balanced alternative between performance and energy consumption.
Hot water offers two major benefits. First, it significantly facilitates the dissolution of grease. Where cold water would coagulate grease and simply spread it on the floor, hot water emulsifies it and captures it in the suction system. Second, this temperature helps to continuously degrease the brush itself, limiting the accumulation of greasy residue that would gradually impair cleaning efficiency.
The activation time is approximately 30 seconds, significantly shorter than the steam mode. This responsiveness, combined with superior battery life, makes it the preferred mode for everyday use throughout a home. Tests conducted on various fresh or slightly dried stains demonstrate remarkable effectiveness: ketchup, soy sauce, jam, and spilled liquids are removed in a single pass in most cases.
DirtTech Automatic Mode and Sensors
The automatic mode uses two infrared sensors strategically positioned in front of and behind the suction head. These sensors analyze the floor's soiling level in real time and automatically adjust three parameters: suction power, water flow rate, and wheel drive assistance intensity.
This built-in intelligence optimizes resource consumption. In lightly soiled areas, the device reduces its performance to conserve battery and water. Conversely, as soon as it detects a significant concentration of dirt, it instantly increases its power to guarantee a spotless result. In practice, this modulation is clearly noticeable when moving across contrasting areas of the home.
Sponge Mode: Liquid Suction
The fourth mode suspends water distribution and concentrates power on purely vacuuming liquids from the floor. This feature addresses a specific need: retrieving a spilled glass or cleaning up a puddle without adding extra moisture.
Tests conducted with various volumes of liquids reveal a rapid and efficient absorption capacity. Coca-Cola, milk, or water are absorbed in seconds, leaving a barely damp surface. This feature also proves invaluable after using degreasing products that need to be left to work for a few minutes before vacuuming.
Suction Performance and Power
Power of Depression
The Roborock F25 Ultra's motor delivers a suction power of 22,000 pascals , placing it among the top performers in today's mopping robot market. This raw power translates into a remarkable ability to capture particles of all sizes, from fine dust to larger debris.
The rotating brush also exerts a pressure of 33 newtons on the floor , equivalent to a support force of 3.3 kilograms. This pressure ensures constant and optimal contact between the roller fibers and the surface being cleaned, thus maximizing cleaning efficiency even on uneven tiles or raised grout lines.
Performance Tests on Dry Dirt
Confronting a large volume of various dry debris provides a compelling demonstration of its suction capabilities. Dead leaves, grains of salt and sugar, rice, plastic fragments, dust bunnies: everything is captured in a single pass with an estimated collection rate of 98%. The remaining 2% typically consists of a few stray grains trapped deep in the tile grout.
The solids/liquid separation system works efficiently. Dry particles are directed to the filter compartment, while water containing dissolved dirt fills the dedicated tank. This separation greatly simplifies subsequent maintenance of both tanks.
Hair and Body Hair Management
The F25 Ultra's anti-tangle system performs its function with remarkable efficiency. After collecting a substantial amount of long hair and pet hair, the rotating brush is remarkably clean. Only a small clump of hair may occasionally accumulate in the area above the roller, but this requires only a quick manual removal.
The suction ducting also benefits from hot water cleaning during self-maintenance cycles, which prevents gradual clogging by hair and maintains optimal airflow. However, a few stray hairs may remain in the duct and will require periodic visual inspection.
Efficiency of Edging and Baseboards
The edge-to-edge design allows the roller to get within a minimum distance of 1 millimeter of baseboards. Tests conducted with powdered sugar placed along the walls demonstrate near-total collection in a single pass. This maximum proximity eliminates tedious manual touch-ups around the edges of rooms.
However, the lack of a retractable squeegee on the front panel is a regrettable omission. Some competitors equipped with this system manage to more easily collect small crumbs and debris accumulated against baseboards. The F25 Ultra captures them by suction and roller rotation, which remains effective but slightly less perfect.
Fuel Tanks and Range
The Roborock mop's clean water tank offers a generous one-liter capacity, the largest in its class. It's filled from the top, theoretically allowing it to be positioned under any faucet. In practice, however, this design necessitates several successive refills to expel air bubbles and reach full capacity, a process that can be quite tedious.
A separate compartment holds the detergent provided by the brand. Depending on the settings chosen in the app, Roborock claims a 30-day battery life for the cleaning solution bottle. Dispensing adjusts automatically according to the selected mode; for example, detergent is not used in steam mode where the high temperatures are sufficient for sanitizing.
The Roborock F25 Ultra's dirty water tank has a capacity of 720 milliliters. An ergonomic handle makes it easy to grip and separate from the coarse debris filter. Two fill lines indicate the absolute maximum and the maximum level for use when the robot is lying flat; the latter is lower to prevent liquid from flowing back into the electronic components when the robot is at an extreme angle.
Autonomy in Steam Mode
Measurements taken during our continuous steam cleaning tests revealed a battery life of 21 to 24 minutes. Roborock advertises a range of 20 to 25 minutes, so this promise is perfectly accurate.
This limited autonomy is due to the considerable energy consumption required to produce steam. The 4,600 milliampere-hour battery drains quickly, with observed losses of 10% in just two minutes of intensive use. For a home of approximately 100 square meters, this duration may be sufficient if the steam treatment is targeted to specific areas rather than applied uniformly.
After a 21-minute steam cycle, the clean water tank retains approximately one-third of its capacity, while the dirty water tank is half full. Therefore, battery life becomes the limiting factor, even more so than tank capacity.
Roborock F25 Ultra Battery Life in Hot Water Mode
The Roborock F25 Ultra's hot water cleaning cycle offers an average battery life of between 15 and 20 minutes, according to the manufacturer's specifications. Practical tests confirm this, with sessions lasting 16 minutes before needing to return to the charging base.
This range allows for the complete coverage of a 120 square meter living space by making methodical round trips. The fresh water tank reaches the end of its runtime at approximately the same time as the battery, demonstrating a coherent sizing between the two components.
The speed of cleaning with hot water can be higher than that required in steam mode, partially compensating for the shorter operating time compared to standard mode. For daily use aimed at maintaining a consistent level of cleanliness, this mode represents the best compromise between efficiency and battery life.
Battery Life in Standard Mode
Although not exhaustively tested, the battery life in cold water mode is advertised as between 45 and 60 minutes depending on the intensity of the selected settings. These values correspond to the usual standards for traditional floor scrubbers and theoretically allow for cleaning large areas without interruption.
This mode remains perfectly suited for the regular cleaning of infrequently used living spaces, where fresh dirt doesn't require high temperatures. The resulting battery savings allow for extended cleaning sessions, ideal for spacious homes or thorough weekly cleaning.
Recharge Time
The Roborock steam cleaner's battery takes approximately four hours to fully recharge from a deep discharge. This substantial timeframe necessitates careful planning: ideally, the device should be returned to its charging base immediately after use to ensure its availability for the next cleaning session.
To activate the quick drying function after cleaning, a minimum battery charge is required due to the energy consumption of this process. If the battery is completely depleted, wait a few minutes after returning the device to its base before starting this cycle.
Roborock F25 Ultra Self-Cleaning Station
The Roborock F25 Ultra's cleaning station incorporates several deep-cleaning technologies for the brush roll. In standard mode, water heated to 90 degrees Celsius by hot air is sprayed liberally onto the rotating brush. This temperature promotes the dissolution of grease and the removal of organic residue.
The major innovation lies in the ability to activate a 180-degree steam cleaning function, the temperature of which is measured at the outlet of the heating element. This option proves particularly effective at removing stubborn dirt that may have accumulated in the roller fibers during intensive cleaning sessions.
The system rotates the brush alternately in both directions to ensure even cleaning of its entire circumference. A comb integrated into the station simultaneously scrapes the roller, mechanically removing any residual hairs or fibers that may have resisted the initial suction.
The color of the water collected in the dirty water tank after a self-cleaning cycle clearly demonstrates the effectiveness of the process. The initially clear water consistently comes out tinted, sometimes quite dirty after particularly demanding cleaning sessions.
Quick and Quiet Drying
Two drying modes are available. The fast mode propels air heated to 95 degrees Celsius for five minutes, removing residual moisture with remarkable efficiency. Thermal imaging measurements confirm temperatures regularly exceeding 90 degrees Celsius on the roller surface during this phase.
After five minutes, the roller has a residual moisture content of less than 0.2 grams, according to the manufacturer's specifications. Manual checks with a white cloth confirm near-complete drying; the fabric emerges practically spotless after firm pressure is applied with a brush.
The silent mode extends the process to 30 minutes but limits the noise level to 53 decibels. This mode prioritizes discretion over speed, allowing you to run a cycle at night or during quiet moments without any noticeable noise disturbance.
Electricity consumption during intensive drying reaches 700 watts during the heating phase, which represents approximately 1.3 euro cents for a complete cycle. Recharging the battery over four hours costs 3.5 cents, negligible amounts in a household's overall energy budget.
Tank Maintenance
The HEPA filter protecting the motor is easily removable for rinsing under running water. The manufacturer recommends allowing it to dry for 24 hours before reinstalling it. A second replacement filter is included in the packaging, allowing for easy rotation and regular maintenance.
The clean water tank incorporates an anti-limescale system consisting of microbeads contained in a sealed compartment. This device aims to extend the lifespan of the heating elements by limiting limescale buildup. The cartridge appears to be non-replaceable, with Roborock likely anticipating sufficient longevity for the product's normal lifespan. However, using demineralized or softened water is still recommended to maximize the heating system's longevity.
Maneuverability and Ease of Use
SlideTact 2.0 System
Motorized wheels equipped with brushless motors are revolutionizing user comfort. These brushless motors operate in near silence, unlike the small, rigid wheels of some competitors that generate an unpleasant clicking noise on tiled floors.
The intelligent assistance system adapts the propulsion based on the detected movement. When moving forward, the wheels provide traction, facilitating movement. When moving backward, they assist the movement with a gentle push. This two-way assistance literally transforms the cleaning experience, making the device surprisingly light despite its actual weight of 5.5 kilograms.
Three levels of assistance intensity can be configured in the app. The medium setting suits most users, offering a satisfactory balance between motor assistance and maintaining a sense of control. People with reduced mobility or those looking to minimize physical effort will appreciate the maximum mode, which almost gives the impression of walking the device rather than pushing it.
Agility and Obstacle Circumvention
Individual control of the two drive wheels allows for remarkable maneuverability. The F25 Ultra pivots easily around chair legs, navigates kitchen islands effortlessly, and squeezes into tight spaces with surprising fluidity for a broom of this size.
The low weight distribution combined with the drive wheels allows for one-handed maneuvering, with the sweeper responding instantly to lateral movements. This responsiveness greatly facilitates meticulous cleaning around the multiple obstacles typical of a cluttered dining room or kitchen.
The ability to lie flat under furniture adds another dimension to its versatility. Under a sofa, under a bed, under a chest of drawers: the F25 Ultra accesses areas usually overlooked because a conventional broom can't fit through them. However, its height of 12.5 centimeters remains a limitation, excluding furniture with shorter legs.
Remote Control Mode
The mobile app transforms the steam mop into a remote-controlled vehicle. This innovative feature addresses a specific use case: cleaning under deep furniture that is inaccessible even when lying down.
The control interface features four directional arrows. The device moves forward, backward, and pivots according to the given instructions, with decent responsiveness, although not as fast as a real radio-controlled car. Turns are only possible in forward gear, somewhat limiting the possibilities for complex maneuvers.
In practice, this feature remains somewhat niche and will likely only be used occasionally by most homeowners. Its main advantage lies in the ability to sweep the mop under a king-size bed for a thorough cleaning all the way to the opposite wall, an area inaccessible to the naked eye. The automatic return-to-home function is a welcome addition, eliminating the need to crawl to retrieve the device.
Ergonomics of the Stock
The grip fits naturally in the hand, with the three buttons falling instinctively under the fingers. The color screen offers decent visibility even in bright sunlight, although its sophistication remains modest compared to the more elaborate interfaces of some high-end competitors.
The pole's length is suitable for users of varying heights, preventing uncomfortable hunched postures during extended sessions. However, the lack of a folding pole is a drawback, making it difficult to reach under certain furniture without having to kneel completely.
Mobile Application and Settings
Connection and Interface
The Roborock app unifies control of the entire brand ecosystem. Users who already own a robot vacuum cleaner will find a familiar interface, making it easy to get started with the mop right away.
The pairing process involves scanning a QR code located on the back of the device, followed by pressing two buttons simultaneously for three seconds to activate pairing mode. The entire procedure is usually completed smoothly in a few minutes, including any firmware update that installs automatically.
Customizing Modes
The dedicated interface for the mop offers granular settings for each operating mode. In automatic mode, the user retains the ability to manually adjust three parameters: suction power (three levels), water flow projected onto the floor (low, medium, high), and the intensity of wheel drive assistance.
The steam and hot water modes intentionally limit customization options. The algorithm automatically determines the optimal settings for these specific technologies, with the user only able to adjust the motor assistance. This limitation prevents unsuitable configurations that would compromise the effectiveness of thermal cleaning.
The sponge mode allows adjustment of suction power and motor assistance, with the water flow naturally deactivated since this mode is specifically designed to vacuum liquids without adding any.
Detergent Management
A specific setting controls the amount of detergent dispensed during cleaning. Four levels are available: none, low, standard, or high. The high setting maximizes the diffusion of the cleaning product, leaving a pleasant, lingering fragrance in the treated rooms.
The device sharing function allows other household members to control the vacuum cleaner from their own smartphones. This collaborative feature makes it easier to divide household chores among those living together.
Programming of Cycles
Self-cleaning can be configured to activate automatically each time the mop is returned to its base. Alternatively, a timer allows this cycle to be scheduled for a specific time of day, for example, in the evening after the last cleaning sessions, or during the day to ensure complete drying before the next use.
This flexibility addresses personal organization issues: some users will prefer immediate cleaning to keep the device constantly ready for use, while others will favor nighttime programming in silent mode to avoid any noise disturbance.
Notifications and Tracking
The application transmits real-time notifications regarding the device's status. Empty clean water tank, full dirty water tank, end of self-cleaning cycle, complete recharging: these alerts inform the user even when they are away from the device.
Monitoring the condition of consumables allows you to anticipate replacement needs. Although the F25 Ultra requires relatively little maintenance, these indicators provide timely reminders to clean the filter or check the condition of the roller.
Performance Tests on Difficult Tasks
Dried Earth
Dirt presents a major challenge for floor scrubbers. Fresh and damp, it cleans easily. Dry and embedded in the irregularities of the tiles, it resists fiercely. Tests conducted with the Roborock F25 Ultra on dirt left to dry for several hours revealed a dramatic difference between the modes.
In cold water mode, several passes with pressure struggle to completely remove the stain. In hot water mode, effectiveness improves significantly, with almost total removal in two or three passes. In steam mode, a single pass is enough to remove most of the stain, with a second pass finishing the job.
Sauces and Condiments
Ketchup, mayonnaise, soy sauce, mustard: these condiments have varied compositions that test the different capabilities of the device. Fresh, they are all easily captured in a single pass, regardless of the mode selected.
The situation becomes more complicated after drying. Ketchup, in particular, being high in sugars, adheres firmly to the tiles and deeply stains the porous grout. Steam cleaning is the only truly effective solution, as its high temperature softens the caramelized sugars and facilitates their dissolution.
Soy sauce, whether salty or sweet, leaves a stubborn dark film. The salty version dissolves more quickly than the sweet version when exposed to steam. In both cases, several passes with steam will restore the original color of the tiles, preventing permanent staining.
Fatty Body
Butter is a formidable adversary for any water-based cleaning system. Fatty substances like butter or oil coagulate on contact with cold water, simply spreading out rather than being absorbed. This characteristic explains why so many traditional floor mops leave a greasy feeling after use.
The F25 Ultra solves this problem with temperature. Hot water effectively emulsifies grease, allowing it to be vacuumed up. Steam literally melts it, making removal even easier. Even butter left hardened on tiles disappears in seconds thanks to the combined effect of heat and suction.
This performance has a positive impact on the cleanliness of the roller itself. Grease does not accumulate in the fibers but is continuously dissolved by hot water or steam, explaining why the brush remains relatively clean even after intensive cleaning sessions.
Spilled Liquids
Coca-Cola, milk, fruit juice: spilled liquids are absorbed in seconds by the sponge mode. The impressive suction power of the 22,000 pascal motor quickly captures large volumes, leaving a barely damp surface that will dry naturally in minutes.
This feature has immediate practical applications in common household accidents. A spilled glass no longer requires the use of disposable mops or paper towels: the mop becomes the first response tool, saving time and supplies.
Broken Egg
The egg presents a unique case, combining solids (shell) and viscous liquids (white and yolk). The F25 Ultra handles the liquid portion remarkably well, efficiently vacuuming up the white and yolk. Shell fragments, being too large, are not captured by the vacuum and require prior manual removal.
This approach is ultimately preferable: attempting to vacuum sharp debris could damage the pipes or filtration system. The optimal sequence is therefore to manually collect the larger pieces and then sweep up the organic residue.
Effectiveness on Different Soil Types
Glossy and Matte Tiles
Tile is the ideal surface for the F25 Ultra. On a glossy finish, the device leaves no trace or mark, restoring the floor to its original shine. On matte tiles, the result is equally impressive, revealing the true color of the material, free from the patina of dirt.
Tile grout, often overlooked by traditional floor scrubbers, benefits particularly from steam cleaning. The high temperatures penetrate the crevices and dissolve the accumulated grime that conventional rollers struggle to reach. After several weekly steam cleanings, the grout gradually regains its lost clarity.
Parquet and Laminate Flooring
Roborock claims that steam cleaning does not damage laminate or vinyl flooring, citing laboratory tests of over 18,000 passes over hardwood floors without any observed damage. However, these claims should be treated with caution and nuance.
Tests conducted with the Roborock F25 Ultra on laminate flooring in hot water mode revealed no apparent problems. Residual moisture dried quickly without leaving streaks or causing warping. In steam mode, more caution is advised. While no immediate damage was observed, the regular use of high temperatures on glued joints could theoretically weaken them over time.
For solid wood floors in good condition, whether varnished or lacquered, the risk appears minimal. For older floors, low-end laminate flooring, or floors with pre-existing water infiltration, caution is advised. Hot water cleaning then represents a sensible compromise, providing a significant increase in efficiency without exposing the flooring to extreme temperatures.
Carpets and Rugs
Although not specifically designed for these surfaces, the F25 Ultra can be used occasionally on dark, short-pile carpets. The vacuuming removes surface particles, and the slight addition of moisture revives colors. This use should be occasional and should be avoided on light-colored carpets where the damp roller could transfer dirt picked up from other surfaces.
High-pile rugs and carpets are strongly discouraged. The roller won't reach deeply embedded dirt, and excessive moisture could encourage mold growth in the underlayment. For these types of flooring, a traditional vacuum cleaner remains indispensable.
Noise levels of the F25 Ultra
Operating Sound Levels
During cleaning, the F25 Ultra generates a moderate noise level comparable to that of competing floor scrubbers. The hum of the suction motor is the most prominent sound, accompanied by the gentle sloshing of water and the rotation of the brush. Conversation remains perfectly possible, and the device can be used without unduly disturbing the occupants of an adjacent room.
The brushless motorized wheels contribute positively to this acoustic performance. Unlike rigid casters that clatter on tile floors, these silent motors glide without any extraneous noise, giving the whole system a relatively muted sound signature.
Self-Cleaning and Drying
The self-cleaning cycle is accompanied by a higher noise level. The water projected at high pressure onto the rotating brush generates audible splashes, while the suction motor works at full speed to collect the wastewater. This noise, however, remains tolerable and relatively brief.
The rapid drying phase is the noisiest part of the entire process. The fan, which propels the hot air at 95 degrees, spins at high speed, producing a powerful blast that can be felt throughout the room. The five minutes required can seem long if the unit is located near a living area.
This is precisely why the silent drying mode is so useful. While it does last 30 minutes, the measured noise level of 53 decibels means you'll hardly notice the appliance is there. Starting this cycle before a conference call or while watching a movie won't cause any noise issues.
Energy Consumption and Operating Costs
Consumption Measurements
Readings taken with a smart plug provide a precise picture of the F25 Ultra's energy consumption. During a four-hour charge, the device consumes 42 watts continuously, totaling approximately 168 watt-hours per full cycle. At the average French electricity rate, this represents roughly 3.5 euro cents.
The intensive self-cleaning cycle with rapid drying uses 700 watts for seven to eight minutes, which equates to approximately 80 watt-hours or 1.3 cents. Over a year of daily use, these cumulative costs remain negligible, well below 20 euros annually.
The high battery consumption during cleaning is due to the steam production. Transforming water into steam at 150 degrees requires significant energy expenditure, hence the reduced battery life of 20 minutes in this mode compared to 45 to 60 minutes in standard mode.
Battery Durability
The 4600 milliampere-hour lithium-ion battery is subjected to significant stress in steam mode. Rapid and deep discharges are known to accelerate battery aging. Intensive daily use of steam mode could theoretically reduce battery life compared to use primarily in less power-intensive modes.
Roborock has not provided specific information on guaranteed charge cycles. In the absence of official data, a likely lifespan of three to five years of normal use before a noticeable decrease in battery life should be considered. This estimate is based on the typical performance of similar batteries in other household appliances.
To maximize battery life, one strategy is to reserve steam mode for situations that truly require it and favor hot water mode for routine maintenance. This balanced approach preserves the battery while still providing the benefits of thermal cleaning.
Strengths and Weaknesses
The Undeniable Strengths
The F25 Ultra's technological versatility is impressive. Having three distinct cleaning methods in a single device provides unparalleled flexibility to adapt to any situation. Stubborn stains that previously required laborious manual intervention now disappear in just a few passes.
While energy-intensive, steam cleaning proves remarkably effective against the toughest challenges. In critical areas such as restrooms, kitchens, or pet rooms, it provides disinfection and degreasing capabilities unattainable by conventional technologies.
Hot water mode probably offers the best balance for everyday use. It substantially increases performance compared to cold water while maintaining sufficient autonomy to heat an entire home in a single session.
The self-cleaning steam function is a welcome innovation. Unlike traditional mops whose brushes gradually become clogged, potentially emitting unpleasant odors, the F25 Ultra keeps its roller remarkably clean. This feature significantly improves cleaning efficiency and reduces olfactory comfort when storing the appliance.
The exceptional maneuverability provided by the motorized wheels transforms cleaning into a surprisingly effortless task. Even after 20 minutes of intensive use, there is no feeling of strain. The elderly or those with physical limitations will particularly appreciate this motor assistance.
The front LEDs, while seemingly minor, prove surprisingly useful in everyday use. They reveal dirt invisible in normal lighting and make it easier to clean under dark furniture. This attention to detail demonstrates a design focused on the real user experience.
Regrettable Shortcomings
The lack of a retractable front-facing squeegee is the most frustrating drawback. Some competitors, particularly in the Dreame H15 and Mova M50 ranges, include this feature, which significantly improves the collection of small debris along baseboards. Without it, the F25 Ultra has to rely solely on its suction power and the rotation of its brush, which are somewhat less effective in these situations.
The charging station requires lifting the device at arm's length to reposition it. This action, repeated daily with a 5.5-kilogram device, can be cumbersome for some users. Other brands, such as U-Want with its D100, offer a front-loading dock that eliminates this need for manual intervention—an ergonomic solution that deserved to be adopted.
The control screen, while functional, is disappointingly basic for a device in this price range. A larger, more informative color screen, like the one on the Tineco S7 Steam Stretch, would have added a touch of modernity and made it easier to view status information.
The non-folding handle somewhat limits the practicality of the flat mode. Even in a 180-degree horizontal position, the user must bend over to guide the device under furniture. An additional joint, like the one developed by Mova for its M50, would allow for cleaning under furniture without any back strain.
While the brand clearly advertises its steam autonomy, it may disappoint those with larger living spaces. Twenty minutes is sufficient for a home of 80 to 100 square meters, but larger areas will require either an intermediate recharging break or a strategy that prioritizes the areas that truly need steam.
Filling the tank from the top, while theoretically convenient, proves laborious when trying to reach maximum capacity. Air bubbles constantly rise, requiring several filling and waiting cycles to clear them completely. A side-filling system or one with a vent would have simplified this routine task.
Positioning Against the Competition
Tineco S7 Steam Stretch
Tineco also offers a steam mop, the S7 Steam Stretch. Both devices share similar performance in steam mode, with comparable effectiveness against stubborn stains. The Tineco stands out with a more sophisticated display and a more refined aesthetic design.
The Roborock counters with its additional hot water mode, absent in the Tineco, thus offering a useful intermediate option between steam and cold water. The F25 Ultra's motorized wheels also provide superior maneuverability. Overall battery life slightly favors the Roborock.
In terms of anti-tangle system and brush cleanliness, the two competitors are comparable. However, the Roborock benefits from steam self-cleaning, while the Tineco is limited to hot water. Pricing is roughly equivalent, placing both models in the premium segment of the market.
Dreame H15 Mix
The Dreame H15 comes in several versions, including a Mix version capable of dry vacuuming without activating the washing system. This versatility makes it attractive to users looking for a two-in-one appliance. However, it does not offer steam or hot water, limiting its performance to that of a conventional mop.
The F25 Ultra clearly excels at tougher tasks thanks to its thermal technology. For standard daily cleaning, the Dreame is perfectly adequate, and its lower price may appeal to those on a budget. The Dreame's front-mounted squeegee is a definite advantage for cleaning along baseboards.
Mova M50
The Mova M50 features an innovative articulated handle that makes it easy to clean under furniture without bending over. This remarkable ergonomic design surpasses Roborock's solution. It also includes an efficient front-mounted squeegee.
In contrast, the M50 lacks steam and hot water capabilities, limiting it to standard features. The F25 Ultra is therefore the clear choice for users prioritizing maximum cleaning efficiency, while the Mova will appeal to those who value ergonomic comfort and everyday usability.
Competitive Synthesis
The Roborock F25 Ultra is undeniably the most technologically advanced mop currently available. No competitor combines high-temperature steam, hot water, cold water, steam self-cleaning, and motorized wheels in a single device.
This technological sophistication justifies its high price point. Consumers simply looking for an effective mop for routine cleaning will likely find less expensive alternatives perfectly suited to their needs. The F25 Ultra is specifically aimed at demanding users who want every possible tool to tackle the most stubborn dirt and are prepared to invest accordingly.
✔ Three cleaning technologies (steam 150°C, hot water 86°C, cold water).
✔ Remarkable effectiveness on ingrained stains and tough dirt.
✔ Motorized wheels with intelligent assistance offering exceptional maneuverability.
✔ Self-cleaning steam ensures lasting cleanliness of the brush.
✔ High-performance anti-tangling system (hair and fur).
✔ Front LEDs revealing dirt in dark areas.
✔ High suction power of 22,000 Pa.
✔ Complete application allowing for extensive customization.
✔ Quick drying in five minutes or silent drying in thirty minutes.
✔ Generous tanks (1L clean water, 720ml dirty water).
✔ Flat position accessing under furniture 12.5 cm and more.
✔ Edge-to-edge efficiency approaching baseboards to within 1 mm.
✔ Remote control via remote control for inaccessible areas.
✔ Solid construction and elegant design.
✖ Limited autonomy of 20-25 minutes in steam mode.
✖ High price of 699 euros.
✖ No retractable front scraper for small debris.
✖ Station requiring the device to be lifted for repositioning.
✖ Non-folding handle limiting ergonomics in horizontal position.
✖ Relatively basic control screen.
✖ Filling the upper tank is laborious with air bubble management.
✖ Full recharge time of four hours.
✖ Potential concerns about battery durability under heavy steam use.
✖ Filter requires 24 hours of drying time after cleaning.
Conclusion and review of the Roborock F25 Ultra
The Roborock F25 Ultra lives up to the promise of a next-generation floor mop. It undeniably pushes the boundaries of what a home appliance can achieve in terms of floor cleaning. Steam at 150 degrees disintegrates dirt that previous generations could only spread around. Hot water at 86 degrees substantially improves daily efficiency. Motorized wheels transform a potentially tiring chore into an almost playful stroll through the house.
pet owners and households with young children where unexpected messes occur daily. The steam effectively disinfects , and the anti-tangle system handles pet hair remarkably well. The F25 Ultra's rapid response time is a major advantage.
For single people or couples without children or pets, the F25 Ultra may seem overkill. A standard cold-water mop will likely suffice to maintain a satisfactory level of cleanliness at a lower cost. The substantial investment required is difficult to justify if its distinctive features are only used occasionally.
battery life in steam mode remains the main drawback. Twenty minutes is enough to treat a significant area, but owners of large homes will have to contend with an intermediate recharge. This technical limitation seems inherent to producing high-temperature steam with a portable battery.
The €699 price tag positions the F25 Ultra in the premium segment. This price is objectively justified by its technological features and performance. For those who can justify the investment through regular use of its distinctive capabilities, it represents a choice that is hard to fault.
The Roborock F25 Ultra is the current benchmark for floor mopping thanks to its 150°C steam and hot water capabilities. It's ideal for families with pets or children, but its price and limited steam cleaning time make it best suited for intensive, targeted use.
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