P1
iRobot Roomba Robot Vacuum and Mop Combo Essential, Y0140
P2
Roborock Qrevo Edge S5A Robot Vacuum and Mop
Average score
P1
Product 1: iRobot Roomba Robot Vacuum and...
3.4
P2
Product 2: Roborock Qrevo Edge S5A Robot...
4.2
Accessories and Tools
P1
Product 1: iRobot Roomba Robot Vacuum and...
3.8
Includes the basics (dock, mop pad(s), side brush, and a small cleaning tool), but the kit is sparse versus premium robots. Some reviewers wanted more spares or more specialized cleaning tools.
P2
Product 2: Roborock Qrevo Edge S5A Robot...
4.4
The box contents are comprehensive for an all-in-one robot: dock, ramp, mop pads, power cord, an extra dust bag, and printed guides, making it easy to get started without extra purchases.
Adaptive chassis lift
P1Product 1: iRobot Roomba Robot Vacuum and...
No score yet
P2
Product 2: Roborock Qrevo Edge S5A Robot...
1.2
This model does not include an adaptive lift chassis, which limits threshold climbing compared with the higher Edge model and some flagships. If your home has tall transitions, this is a notable constraint.
Aesthetic design and finish
P1
Product 1: iRobot Roomba Robot Vacuum and...
2.8
Clean, low-profile look, but multiple mentions suggest the shell can scuff or scratch from bumping into furniture. Expect cosmetic wear in tight, cluttered spaces.
P2
Product 2: Roborock Qrevo Edge S5A Robot...
3.7
Design is generally viewed as modern and clean, though some reviewers prefer the more premium-looking alternatives (for example Curv or flagships). The dock can look a bit industrial, but the robot and station still fit well in most rooms.
AI, Smart, App and Automation
P1
Product 1: iRobot Roomba Robot Vacuum and...
3.1
App automation covers essentials like scheduling, start/stop, and some suction/water adjustments, plus voice assistant support. It lacks advanced features such as room-specific cleaning, saved smart maps, and keep-out/no-go zones.
P2
Product 2: Roborock Qrevo Edge S5A Robot...
4.7
Automation and smart features are a highlight: schedules, no-go/no-mop zones, multi-floor maps, granular suction and water control, assistant integrations, and dock control. Obstacle detection relies on structured-light style sensing rather than a camera on this model.
Area Rug Handling
P1
Product 1: iRobot Roomba Robot Vacuum and...
2.0
Rug handling during mopping is a recurring pain point: it will mop rugs unless you remove them or block the area. Reviews recommend barriers or manual prep when using mop mode.
P2
Product 2: Roborock Qrevo Edge S5A Robot...
4.2
Mop pads lift when carpet/rugs are detected and many users report rugs staying dry during transitions. Very high-pile carpets may still get damp depending on settings, so vacuum-first routines can be helpful.
Assembly and Setup
P1
Product 1: iRobot Roomba Robot Vacuum and...
3.8
Setup is usually fast and straightforward through the app, often in minutes. One reviewer found the onboarding and model identification confusing, suggesting setup can be less smooth depending on context.
P2
Product 2: Roborock Qrevo Edge S5A Robot...
4.7
Setup is described as straightforward: attach the ramp, plug in the dock, charge, pair to Wi‑Fi, and fill the clean water tank. Most reviewers report quick, hassle-free first run and mapping.
Battery and Charging
P1
Product 1: iRobot Roomba Robot Vacuum and...
4.2
Battery life is a standout for the class, commonly reported around two hours. Docking is usually adequate, though a few reviewers note occasional trouble finding or returning to the base.
P2
Product 2: Roborock Qrevo Edge S5A Robot...
4.4
Battery life is repeatedly called a strong point, with a large battery and long runtimes on lower suction settings. Higher suction drains faster, and some testing shows max-power coverage below average, but typical mixed use is expected to fall in between.
Bin and Bag
P1
Product 1: iRobot Roomba Robot Vacuum and...
3.2
Small, bagless onboard bin that is easy to remove but fills quickly, especially with pets. No bagged system and no self-empty capability.
P2
Product 2: Roborock Qrevo Edge S5A Robot...
4.5
Uses a dock dust-bag system that empties cleanly and is easy to swap with minimal mess. Reported replacement cadence ranges from roughly 30–60 days to about 2–3 months depending on debris load.
Build quality and durability
P1
Product 1: iRobot Roomba Robot Vacuum and...
4.0
Generally feels solid for a budget model, though bumper-based navigation can lead to knocks and scuffs. Long-term durability impressions are cautiously positive but not premium.
P2Product 2: Roborock Qrevo Edge S5A Robot...
No score yetCarpet — Low-Pile Pickup
P1
Product 1: iRobot Roomba Robot Vacuum and...
2.4
Carpet pickup on low-pile is generally mediocre, especially on fine sand and deeper debris. It can maintain lightly soiled rugs but is not a deep-clean option.
P2Product 2: Roborock Qrevo Edge S5A Robot...
No score yetCarpet — Medium-Pile Pickup
P1Product 1: iRobot Roomba Robot Vacuum and...
No score yet
P2
Product 2: Roborock Qrevo Edge S5A Robot...
4.5
Carpet cleaning is generally rated strong for the tier, including an above-average deep-cleaning score in testing and good pickup on rugs. Performance is not positioned as flagship-level, but it is consistently described as effective.
Clogging and debris prevention
P1Product 1: iRobot Roomba Robot Vacuum and...
No score yet
P2
Product 2: Roborock Qrevo Edge S5A Robot...
4.6
The brush and dock system handle heavy hair and mixed debris without frequent clogs, and auto-emptying is reported to work without choking on hair. Occasional checks are still advisable, but clogging is not a common complaint.
Comparative performance
P1
Product 1: iRobot Roomba Robot Vacuum and...
3.3
Cleaning on hard floors can compare well to pricier models in some tests, but the feature set lags behind competitors with smart maps or self-empty docks. Multiple reviewers suggest spending more if you want more autonomy or better navigation.
P2
Product 2: Roborock Qrevo Edge S5A Robot...
4.1
Across comparisons, the S5A is framed as upper mid-tier: strong fundamentals and automation, but behind flagships in obstacle avoidance sophistication and premium extras. Many reviewers still consider it a sweet spot when priced well.
Controls and UI
P1
Product 1: iRobot Roomba Robot Vacuum and...
3.3
Controls are simple, but the UI is limited: reviewers note basic on-robot buttons and a straightforward app. Some also mention missing advanced controls or occasional limitations like not easily commanding a dock return.
P2
Product 2: Roborock Qrevo Edge S5A Robot...
4.6
The Roborock app and controls are repeatedly called intuitive and customizable, with clear UI for maps, routines, suction, and water levels. Live video-style viewing is not available on this model, but core control is polished.
Cord length
P1
Product 1: iRobot Roomba Robot Vacuum and...
2.8
Dock power cord length is noted as short in at least one review, which can restrict where the dock can be placed.
P2Product 2: Roborock Qrevo Edge S5A Robot...
No score yetCord management
P1
Product 1: iRobot Roomba Robot Vacuum and...
3.8
Dock provides basic cord routing/tidy, helping keep the short cable managed, but placement flexibility remains limited.
P2Product 2: Roborock Qrevo Edge S5A Robot...
No score yetCorner Cleaning (Robot)
P1Product 1: iRobot Roomba Robot Vacuum and...
No score yet
P2
Product 2: Roborock Qrevo Edge S5A Robot...
4.4
Corner cleaning improves notably thanks to an extending side brush, leaving corners visibly cleaner than many robots. Some reviews still note a small amount of leftover debris in tight corners.
Dirty water sensor
P1Product 1: iRobot Roomba Robot Vacuum and...
No score yet
P2
Product 2: Roborock Qrevo Edge S5A Robot...
4.1
The dock dirt-detection and remopping concept can work well (for example, triggering a second pass after muddy paw prints). However, other testing reports it did not reliably detect certain dried stains, making the behavior inconsistent.
Docking and Auto-Empty Reliability (Robot)
P1
Product 1: iRobot Roomba Robot Vacuum and...
3.3
Standard dock only (no auto-empty). Docking is usually fine, but multiple reviews mention occasional trouble returning to or locating the base, especially in larger or cluttered areas.
P2
Product 2: Roborock Qrevo Edge S5A Robot...
4.6
Docking and automation are consistently reliable in reviews: automatic dust emptying, water refilling, mop washing, and drying generally work as expected. The tradeoff is a larger dock footprint compared with simpler stations.
Dried-On Stain Removal
P1
Product 1: iRobot Roomba Robot Vacuum and...
2.4
Consistently weak on dried-on or set-in stains. The passive pad and limited pressure perform better on fresh spills and light grime than on hardened messes.
P2
Product 2: Roborock Qrevo Edge S5A Robot...
4.3
Handles common dried messes well, including muddy paw prints and dried coffee, often improving significantly on a second pass. Tougher stains like dried ketchup may require multiple passes and sometimes manual intervention.
Ease of use
P1
Product 1: iRobot Roomba Robot Vacuum and...
3.8
Daily use is easy for basic starts and schedules, and many find it approachable even without advanced tuning. Ease drops if you expect room targeting, keep-out zones, or fully autonomous whole-home navigation.
P2Product 2: Roborock Qrevo Edge S5A Robot...
No score yetEdge and Baseboard Cleaning (Hard Floors)
P1Product 1: iRobot Roomba Robot Vacuum and...
No score yet
P2
Product 2: Roborock Qrevo Edge S5A Robot...
4.6
Edge and baseboard cleaning is a consistent strength, helped by an extending mop pad and flex arm side brush that can reach right up to walls. It is often described as better than most robot mops, though not always perfect in tight corners.
Edge‑Following Accuracy (Robot)
P1Product 1: iRobot Roomba Robot Vacuum and...
No score yet
P2
Product 2: Roborock Qrevo Edge S5A Robot...
4.4
Edge-following is strong, with the robot staying close to walls and the mop pad reaching into baseboard lines. Reviewers often show it maintaining contact better than typical robot mops.
Emptying and Mess Control
P1
Product 1: iRobot Roomba Robot Vacuum and...
2.7
Emptying is manual and frequent due to the small bin, with no self-empty dock. Expect more dust exposure and mess potential than higher-end auto-empty systems.
P2
Product 2: Roborock Qrevo Edge S5A Robot...
4.6
Auto-emptying to a sealed bag keeps dust handling clean and hands off, and swapping bags is reported to be quick with minimal mess. This is a major convenience advantage for frequent cleaning.
Filtration / Dust Containment
P1
Product 1: iRobot Roomba Robot Vacuum and...
3.0
Filtration is functional but not premium: the filter and bin need regular cleaning. One reviewer disliked the small, paper-like filter and the lack of easy washability.
P2Product 2: Roborock Qrevo Edge S5A Robot...
No score yetFresh Liquid Pickup Speed
P1Product 1: iRobot Roomba Robot Vacuum and...
No score yet
P2
Product 2: Roborock Qrevo Edge S5A Robot...
4.5
Fresh liquid pickup is reported as effective when mopping up spills like a glass of water, with the spinning pads absorbing and clearing liquid without leaving notable residue.
Hair-removal channel issues
P1Product 1: iRobot Roomba Robot Vacuum and...
No score yet
P2
Product 2: Roborock Qrevo Edge S5A Robot...
4.4
When hair does collect, it tends to channel toward the center of the split brush, making it quick to remove by hand. This is described as manageable rather than a major snagging problem.
Hair Pickup — Carpets
P1Product 1: iRobot Roomba Robot Vacuum and...
No score yet
P2
Product 2: Roborock Qrevo Edge S5A Robot...
4.3
Carpet hair pickup is usually strong, especially on rugs, though a few tests still show small amounts of hair remaining after a pass. Overall performance is described as better than average for this tier.
Hair Pickup — Hard Floors
P1Product 1: iRobot Roomba Robot Vacuum and...
No score yet
P2
Product 2: Roborock Qrevo Edge S5A Robot...
4.7
Hair pickup on hard floors is a standout, including long and even slightly damp strands, with users reporting thorough collection and minimal cleanup afterward.
Hair‑Wrap / Tangle Resistance
P1
Product 1: iRobot Roomba Robot Vacuum and...
3.8
Hair-wrap resistance is better than average for the price: the roller design and included cleaning tool help, and reviewers report manageable tangles. Heavy pet hair can still require periodic cleanup.
P2
Product 2: Roborock Qrevo Edge S5A Robot...
4.8
Hair-wrap resistance is one of the biggest strengths: the DuoDivide brush and redesigned side brush greatly reduce tangles. In extreme stress tests, some hair may channel to the center and require a quick manual pull, but it is easy to clear.
Hard Floor — Fine Dust Pickup
P1
Product 1: iRobot Roomba Robot Vacuum and...
4.4
Fine dust pickup on hard floors is very strong in measured testing and aligns with positive user impressions on everyday debris.
P2
Product 2: Roborock Qrevo Edge S5A Robot...
4.6
Hard-floor fine dust pickup is repeatedly described as strong, including successfully collecting very fine particles like powdery debris without leaving a visible film.
Hard Floor — Large Debris Intake
P1
Product 1: iRobot Roomba Robot Vacuum and...
4.5
Large debris intake on hard floors is also strong in measured tests, making it a good fit for kitchens and entryways.
P2
Product 2: Roborock Qrevo Edge S5A Robot...
4.6
Handles larger debris well on hard floors, such as crumbs, rice, and oatmeal, often clearing scattered mess in a single run or a couple of passes.
Headlight and LED lights
P1Product 1: iRobot Roomba Robot Vacuum and...
No score yet
P2
Product 2: Roborock Qrevo Edge S5A Robot...
1.5
This model is noted as lacking built-in LED or headlight illumination, which some reviewers say would help in dim rooms and for better obstacle detection.
Heating element
P1Product 1: iRobot Roomba Robot Vacuum and...
No score yet
P2
Product 2: Roborock Qrevo Edge S5A Robot...
4.4
The dock uses heated processes (hot water mop washing and warm/hot air drying). Some testing questions whether advertised maximum water temperature is reached, but the heating still appears effective for pad cleaning and drying.
Low-profile design
P1
Product 1: iRobot Roomba Robot Vacuum and...
4.2
The slim body is repeatedly praised for fitting under furniture and docking neatly. This is one of the most consistently positive design notes.
P2
Product 2: Roborock Qrevo Edge S5A Robot...
4.3
The robot is relatively slim for a LiDAR-top model (around 4 inches / ~9.8 cm), helping it fit under more furniture than many competitors. It is still taller than ultra-thin flagships that remove the top LiDAR turret.
Maintenance requirements
P1
Product 1: iRobot Roomba Robot Vacuum and...
2.6
Ownership is maintenance-heavy: frequent bin emptying, filter cleaning, pad washing, and occasional brush/roller checks are commonly mentioned. It is not a hands-off robot.
P2
Product 2: Roborock Qrevo Edge S5A Robot...
4.4
Maintenance is largely hands off thanks to the auto-empty and mop-wash dock, plus reduced hair tangling. Users still need to replace bags, rinse/clean the dock tray occasionally, and maintain filters and pads.
Map and Path Efficiency (Robot Vacuums)
P1
Product 1: iRobot Roomba Robot Vacuum and...
2.5
Mixed pathing: it can run in systematic rows in a room, but it lacks true smart mapping and can miss or repeat areas in larger, multi-room runs. Several reviews describe erratic navigation and occasional getting lost.
P2
Product 2: Roborock Qrevo Edge S5A Robot...
4.6
LiDAR-based navigation earns strong marks for fast, accurate mapping and efficient room coverage. Multi-floor support and reliable pathing are repeatedly highlighted as core strengths.
Mop lifting system
P1Product 1: iRobot Roomba Robot Vacuum and...
No score yet
P2
Product 2: Roborock Qrevo Edge S5A Robot...
4.4
The mop lifting system (about 10 mm) works well for most rugs and carpets and helps prevent wetting during transitions. Very plush/high-pile carpet can still be challenging without using vacuum-first settings.
Mopping performance
P1
Product 1: iRobot Roomba Robot Vacuum and...
3.3
Mopping is best described as light maintenance: decent for fresh spills and routine dusting, but weak on heavy grime and dried-on stains. Carpets and rugs generally need to be blocked off before mopping.
P2
Product 2: Roborock Qrevo Edge S5A Robot...
4.5
Mopping performance is widely praised: dual spinning pads, adjustable water output, and frequent pad washing produce clean, refreshed hard floors. Sticky dried stains may take multiple passes, but everyday grime is handled very well.
Noise level
P1
Product 1: iRobot Roomba Robot Vacuum and...
3.9
Often described as relatively quiet or fan-like rather than shrill. Not silent, but generally acceptable for apartments and daytime cleaning.
P2
Product 2: Roborock Qrevo Edge S5A Robot...
4.5
Generally quieter than many competitors; peak loudness is cited around 70 dB on higher suction, and real-home testing reports low disruption (pets barely reacting).
Obstacle Avoidance (Robot)
P1
Product 1: iRobot Roomba Robot Vacuum and...
2.3
Obstacle avoidance is basic bumper-style, so it can bump into furniture and struggle with cords or low obstacles. Reviews suggest picking up clutter to reduce stalls and damage.
P2
Product 2: Roborock Qrevo Edge S5A Robot...
3.3
Obstacle avoidance is the most mixed area: some users see graceful navigation around common items, while multiple controlled tests show it can run over cables and miss smaller or low objects, especially on carpet. Camera-equipped models are consistently reported as better here.
Odor control
P1Product 1: iRobot Roomba Robot Vacuum and...
No score yet
P2
Product 2: Roborock Qrevo Edge S5A Robot...
4.8
Hot-water washing plus hot/warm air drying helps keep mop pads fresh, and at least one real-home review explicitly reports no lingering smells after repeated runs.
Ongoing ownership costs (bags, filters, batteries)
P1Product 1: iRobot Roomba Robot Vacuum and...
No score yet
P2
Product 2: Roborock Qrevo Edge S5A Robot...
4.2
Consumables are typical for an auto-empty robot: dust bags and periodic filter cleaning/replacement. Reported bag life of 30–60 days (or 2–3 months) helps keep ongoing costs manageable, but you may also buy cleaning solution since it is manually dosed.
Packaging quality
P1
Product 1: iRobot Roomba Robot Vacuum and...
4.2
Packaging is praised in at least one review for feeling thoughtful and using less plastic, including cloth-style packaging elements.
P2Product 2: Roborock Qrevo Edge S5A Robot...
No score yetPet-Ready Features
P1
Product 1: iRobot Roomba Robot Vacuum and...
3.7
Adequate for routine pet hair, with several reviewers noting manageable fur pickup. Heavy shedders may still trigger frequent emptying, and some tests rate pet-hair pickup as only average.
P2
Product 2: Roborock Qrevo Edge S5A Robot...
4.6
Well-suited to pet homes thanks to excellent hair pickup and anti-tangle brush design. It lacks camera-based pet recognition features found on higher models, but day-to-day pet hair cleanup is a standout.
Price and Value
P1
Product 1: iRobot Roomba Robot Vacuum and...
3.3
Value depends heavily on price: many call it a strong deal when discounted for basic vac+mop, while others say it is overpriced at MSRP given the missing smart mapping and hands-off features.
P2
Product 2: Roborock Qrevo Edge S5A Robot...
4.3
Value is strongest when discounted, with multiple reviewers calling sale pricing an excellent deal versus higher models with cameras or chassis lift. At full price it sits in an upper mid-tier range and may feel expensive if you mainly want top obstacle avoidance.
Privacy controls
P1
Product 1: iRobot Roomba Robot Vacuum and...
4.3
Privacy is called out as a strength by at least one reviewer, citing iRobot’s comparatively robust data and privacy posture. There is little additional privacy detail in other reviews.
P2
Product 2: Roborock Qrevo Edge S5A Robot...
4.6
The absence of a front-facing camera means no live video monitoring, which many see as a privacy benefit. The tradeoff is weaker camera-assisted obstacle recognition and fewer monitoring features compared with models that include an RGB camera.
Runtime
P1
Product 1: iRobot Roomba Robot Vacuum and...
4.6
Runtime is commonly cited around 120–127 minutes, which is good for small to medium spaces. Coverage can still suffer in complex layouts because navigation inefficiency wastes runtime.
P2
Product 2: Roborock Qrevo Edge S5A Robot...
4.7
Measured low-suction runtime and coverage are impressive in testing, with the robot covering roughly 3,947 sq ft before reaching 0% battery, which is above average. Measured max-suction runtime and coverage are weaker in testing, with roughly 513 sq ft covered before depletion, which is below average. Expect significantly better results on mixed or lower suction settings.
Self-cleaning cycle
P1Product 1: iRobot Roomba Robot Vacuum and...
No score yet
P2
Product 2: Roborock Qrevo Edge S5A Robot...
4.6
The dock automates mop washing, pad drying, water refills, and in some cases self-cleaning of the base tray. Reviews generally find these cycles effective and appreciate the reduced hands-on maintenance.
Solution / Liquid system
P1
Product 1: iRobot Roomba Robot Vacuum and...
2.5
Liquid system is basic and water-focused; at least one reviewer notes the brand guidance against detergent. This limits cleaning chemistry options and overall stain-fighting strength.
P2
Product 2: Roborock Qrevo Edge S5A Robot...
2.8
There is no auto solution or detergent dispensing tank, so cleaning solution must be added manually to the clean water tank. Multiple reviews call this a missed feature at this price.
Storage footprint and upright-stand stability
P1Product 1: iRobot Roomba Robot Vacuum and...
No score yet
P2
Product 2: Roborock Qrevo Edge S5A Robot...
3.8
The dock is described as larger because it houses clean/dirty tanks and the auto-empty system, so it needs dedicated floor space. Some comparisons note it is narrower than certain flagship docks, but it is still a sizable station.
Streaking / Residue
P1
Product 1: iRobot Roomba Robot Vacuum and...
3.1
Sticky spills can smear on the first pass and residue can be tracked. It can improve with repeated passes and a clean pad, but it is not consistently streak-free on messier tests.
P2
Product 2: Roborock Qrevo Edge S5A Robot...
4.2
Mopping is typically reported as streak free on hard flooring, but heavy muddy messes can smear on an initial pass before pad washing and follow-up cleaning improves the result.
Stuck resistance
P1
Product 1: iRobot Roomba Robot Vacuum and...
2.9
Works best in tidy spaces: reviewers report getting wedged on furniture legs, cords, plush rugs, or becoming disoriented. Clearing clutter and using barriers improves success.
P2
Product 2: Roborock Qrevo Edge S5A Robot...
3.4
Most day-to-day runs are described as smooth with few stops, but the robot can still get caught by cables or a sock in some tests. Lack of chassis lift also limits its ability to self-recover on tall thresholds.
Suction and Airflow
P1
Product 1: iRobot Roomba Robot Vacuum and...
3.9
Strong on hard floors across reviews and tests, with respectable everyday suction. Performance drops on carpet, where fine debris and deeper pickup are only fair, especially versus higher-end bots.
P2
Product 2: Roborock Qrevo Edge S5A Robot...
4.4
Strong rated suction (up to 18,500 Pa) and consistently good real-world pickup, even when lab airflow/pressure measures slightly below average. Overall cleaning results on hard floors and rugs are described as above average for the price tier.
Suitability for small spaces
P1
Product 1: iRobot Roomba Robot Vacuum and...
4.2
Best suited to small homes and apartments: reviews note it can cover compact areas well and the long runtime helps. It is less convincing in large, multi-room layouts where navigation inefficiency and manual upkeep become more noticeable.
P2
Product 2: Roborock Qrevo Edge S5A Robot...
3.3
The robot itself suits small spaces well thanks to efficient mapping, but the multifunction dock is relatively large. Homes with limited floor space near outlets may need to plan dock placement carefully.
Support and Reliability
P1
Product 1: iRobot Roomba Robot Vacuum and...
4.0
Support is a perceived advantage for some, with one reviewer highlighting iRobot warranty/support policies. Beyond that, the reviews include limited long-term reliability evidence and note occasional app/docking quirks.
P2Product 2: Roborock Qrevo Edge S5A Robot...
No score yetUnder-Furniture Pickup
P1
Product 1: iRobot Roomba Robot Vacuum and...
4.0
Low profile helps it reach under beds and sofas, and multiple reviewers highlight this as a strength. In very tight spaces it may bump and scuff while trying to navigate.
P2
Product 2: Roborock Qrevo Edge S5A Robot...
4.3
Its relatively low height helps it reach under furniture and low cabinetry where many robots miss dust. At least one real-home test highlights under-cabinet cleaning as a major day-to-day benefit.
Water tank
P1
Product 1: iRobot Roomba Robot Vacuum and...
3.5
Tank capacity supports light, small-area mopping and needs routine emptying/refilling. Reviews imply it is fine for maintenance passes but not designed for heavy, wet scrubbing sessions.
P2
Product 2: Roborock Qrevo Edge S5A Robot...
4.5
The clean/dirty water tank setup is a key convenience feature; reviewers cite large tanks (around 4 L clean and ~3.5 L dirty in one real-home test) and automatic onboard refills. This enables multiple full clean-and-mop sessions before needing attention.