Compare Roborock Saros 10R Robot Vacuum and Mop vs Roborock Qrevo Edge Robot Vacuum and Mop

P1 Roborock Saros 10R Robot Vacuum and Mop
P2 Roborock Qrevo Edge Robot Vacuum and Mop

Comparison Takeaways

Roborock Saros 10R Robot Vacuum and Mop

Where It Has the Edge

  • Solution / Liquid system is 4.5 vs 3.3. The liquid system is well-equipped, including automatic detergent dispensing and managed mop-water handling.
  • Comparative performance is 5.0 vs 4.1. In comparison-focused reviews, the Saros 10R lands at or near the top of the flagship class.
  • Hair Pickup — Carpets is 5.0 vs 4.2. Carpet hair pickup is excellent in formal testing, especially versus category averages.
  • Privacy controls is 4.0 vs 3.2. Privacy protections are better than basic robot cams, with physical confirmation needed for remote viewing, though cloud dependence...

Roborock Qrevo Edge Robot Vacuum and Mop

Where It Has the Edge

  • Carpet — Low-Pile Pickup is 4.5 vs 3.0. Low-pile carpet pickup is a strength, with strong results on surface debris and good overall coverage.
  • Stuck resistance is 4.2 vs 3.0. Most testing suggests it navigates without frequent hang-ups, but real-world owners still report the occasional rescue when it...
  • Maintenance requirements is 4.0 vs 3.5. Maintenance is mostly predictable: refill water, empty dirty water, replace bags, and periodically clean brushes/filters; not zero-effort, but...
  • Streaking / Residue is 3.7 vs 3.3. Streaking and smearing can happen when water output is high or when tackling big wet messes; several reviews...
Average score
Product 1: Roborock Saros 10R Robot Vacuum...
4.3
Product 2: Roborock Qrevo Edge Robot Vacuum...
4.2
Adaptive chassis lift
Product 1: Roborock Saros 10R Robot Vacuum...
4.5

The lift chassis is effective on thresholds and transitions, even if it is not flawless on every tall obstacle.

Product 2: Roborock Qrevo Edge Robot Vacuum...
4.5

AdaptiLift-style chassis lifting is a standout feature, helping it clear taller thresholds and better handle higher-pile carpet transitions than many competitors.

Aesthetic design and finish
Product 1: Roborock Saros 10R Robot Vacuum...
4.5

The robot and dock are repeatedly described as sleek and premium-looking, even if the glossy finish shows fingerprints.

Product 2: Roborock Qrevo Edge Robot Vacuum...
3.9

Design feedback is neutral-to-positive: it looks like a modern Roborock with familiar styling, with some notes that higher-priced variants mainly differ in appearance rather than core cleaning.

AI, Smart, App and Automation
Product 1: Roborock Saros 10R Robot Vacuum...
4.5

Smart features are extensive, with a polished app, automation options, and strong map-based controls.

Product 2: Roborock Qrevo Edge Robot Vacuum...
4.4

The app and automation feature set is described as robust: detailed maps, zones/no-go areas, vacuum-then-mop routines, obstacle settings, and smart-home/voice options in some reviews.

Area Rug Handling
Product 1: Roborock Saros 10R Robot Vacuum...
4.5

Area-rug handling is good, particularly because the robot avoids wetting rugs it should not mop.

Product 2: Roborock Qrevo Edge Robot Vacuum...
4.2

It handles rugs by lifting the mop pads and, with the lift chassis, can traverse many transitions; very thick or shaggy rugs may still be better managed with no-go zones.

Assembly and Setup
Product 1: Roborock Saros 10R Robot Vacuum...
4.5

Setup is consistently praised as quick and straightforward, with minimal assembly or learning curve.

Product 2: Roborock Qrevo Edge Robot Vacuum...
4.7

Setup is repeatedly described as straightforward, with fast initial mapping and a smooth app onboarding process.

Battery and Charging
Product 1: Roborock Saros 10R Robot Vacuum...
4.5

Charging performance is fast for the category, with quick top-ups and convenient dock behavior.

Product 2: Roborock Qrevo Edge Robot Vacuum...
4.2

Battery life is reported as strong for a premium robot, with long-run claims up to roughly three hours and above-average endurance in at least one benchmark.

Bin and Bag
Product 1: Roborock Saros 10R Robot Vacuum...
4.0

The self-empty system reduces bin hassle, but bag changes still come up every couple of months with regular use.

Product 2: Roborock Qrevo Edge Robot Vacuum...
4.3

The system relies on a dock bag for auto-emptying; bag swaps are clean and easy, and reviewers expect weeks to a couple months per bag depending on home size and debris.

Build quality and durability
Product 1: Roborock Saros 10R Robot Vacuum...
4.5

Build quality is described as solid and premium rather than flimsy.

Product 2: Roborock Qrevo Edge Robot Vacuum...
No score yet
Carpet — High-Pile Pickup
Product 1: Roborock Saros 10R Robot Vacuum...
4.5

High-pile carpet pickup is strong overall, though at least one setting hurt results badly until disabled.

Product 2: Roborock Qrevo Edge Robot Vacuum...
No score yet
Carpet — Low-Pile Pickup
Product 1: Roborock Saros 10R Robot Vacuum...
3.0

Low-pile carpet results are only moderate, with visible residue left in at least one flour test.

Product 2: Roborock Qrevo Edge Robot Vacuum...
4.5

Low-pile carpet pickup is a strength, with strong results on surface debris and good overall coverage.

Carpet — Medium-Pile Pickup
Product 1: Roborock Saros 10R Robot Vacuum...
4.5

Medium-pile carpet performance is better than average in formal testing.

Product 2: Roborock Qrevo Edge Robot Vacuum...
4.6

Medium-pile carpet performance tests come back above average, with strong deep-clean results in sand-style benchmarks.

Clogging and debris prevention
Product 1: Roborock Saros 10R Robot Vacuum...
4.5

Hair and debris handling are a strength, with the brush system reducing clogging and manual cleanouts.

Product 2: Roborock Qrevo Edge Robot Vacuum...
No score yet
Comparative performance
Product 1: Roborock Saros 10R Robot Vacuum...
5.0

In comparison-focused reviews, the Saros 10R lands at or near the top of the flagship class.

Product 2: Roborock Qrevo Edge Robot Vacuum...
4.1

Reviews frequently compare it with other premium robots (including close Roborock siblings), generally placing it in the top tier for features and overall capability.

Controls and UI
Product 1: Roborock Saros 10R Robot Vacuum...
4.5

The app and controls are described as intuitive and easy to use for mapping, zones, and routine cleaning.

Product 2: Roborock Qrevo Edge Robot Vacuum...
4.2

Controls are mostly app-driven; reviewers call the interface clear and informative (showing dock actions like washing/drying) with enough settings to tailor cleaning behavior.

Cord management
Product 1: Roborock Saros 10R Robot Vacuum...
3.0

Dock cord management is called out as a weak spot rather than a polished detail.

Product 2: Roborock Qrevo Edge Robot Vacuum...
No score yet
Corner Cleaning (Robot)
Product 1: Roborock Saros 10R Robot Vacuum...
5.0

Corner cleaning is one of the strongest recurring positives, especially for both sweeping and mopping edges.

Product 2: Roborock Qrevo Edge Robot Vacuum...
4.3

Corner reach is better than typical due to the extending side brush, but ultra-tight corners can still be missed occasionally depending on layout and avoidance settings.

Debris illumination
Product 1: Roborock Saros 10R Robot Vacuum...
4.0

Built-in lighting adds some visibility help in darker rooms.

Product 2: Roborock Qrevo Edge Robot Vacuum...
No score yet
Dirty water sensor
Product 1: Roborock Saros 10R Robot Vacuum...
4.5

The dirty-water sensing and re-mop logic are described as smart, automatic, and useful on messier floors.

Product 2: Roborock Qrevo Edge Robot Vacuum...
4.2

Dirty-water/intelligent dirt sensing is used to trigger re-washing or targeted re-mopping, which reviewers credit for better consistency on messier zones.

Docking and Auto-Empty Reliability (Robot)
Product 1: Roborock Saros 10R Robot Vacuum...
4.0

Docking and return-to-base performance are generally reliable, though not completely flawless over long-term use.

Product 2: Roborock Qrevo Edge Robot Vacuum...
4.5

Docking and auto-empty reliability is viewed as high, with dependable returns to the base and consistent mop washing/drying and emptying behavior in most reports.

Dock noise
Product 1: Roborock Saros 10R Robot Vacuum...
5.0

Dock noise is a standout positive, especially during auto-emptying and mop maintenance.

Product 2: Roborock Qrevo Edge Robot Vacuum...
No score yet
Dried-On Stain Removal
Product 1: Roborock Saros 10R Robot Vacuum...
4.0

Dried-on stain removal is good but not class-leading in comparison testing.

Product 2: Roborock Qrevo Edge Robot Vacuum...
No score yet
Ease of use
Product 1: Roborock Saros 10R Robot Vacuum...
4.5

Day-to-day use is approachable, with little friction once mapped and configured.

Product 2: Roborock Qrevo Edge Robot Vacuum...
4.6

Ease of use is a major positive: reviewers emphasize set-and-forget routines, strong automation, and minimal day-to-day intervention beyond basic dock maintenance.

Edge and Baseboard Cleaning (Hard Floors)
Product 1: Roborock Saros 10R Robot Vacuum...
4.5

Edge and baseboard cleaning are a standout, especially around walls and chair legs.

Product 2: Roborock Qrevo Edge Robot Vacuum...
4.5

Edge and baseboard reach is a consistent strength thanks to the extending brush/mop system, improving coverage along walls compared with typical round robots.

Edge‑Following Accuracy (Robot)
Product 1: Roborock Saros 10R Robot Vacuum...
4.5

Edge-following and close-quarters tracking are precise, including careful movement around legs and clutter.

Product 2: Roborock Qrevo Edge Robot Vacuum...
4.5

Edge-following accuracy is strong, with the extending mop/brush system getting close to baseboards and improving wall-line coverage.

Emptying and Mess Control
Product 1: Roborock Saros 10R Robot Vacuum...
4.5

Auto-empty behavior keeps cleanup tidy and helps reduce secondary mess when emptying debris.

Product 2: Roborock Qrevo Edge Robot Vacuum...
4.1

Auto-emptying to a bag keeps mess low, but owners still need to stay on top of bag changes and basic dock upkeep to avoid overflow-type messes.

Filtration / Dust Containment
Product 1: Roborock Saros 10R Robot Vacuum...
4.0

Disposable bag containment keeps dust handling cleaner and more contained than basic bin-emptying setups.

Product 2: Roborock Qrevo Edge Robot Vacuum...
No score yet
Floor Drying Time
Product 1: Roborock Saros 10R Robot Vacuum...
4.5

Floors dry relatively quickly after mopping in real-world use.

Product 2: Roborock Qrevo Edge Robot Vacuum...
No score yet
Floorhead design
Product 1: Roborock Saros 10R Robot Vacuum...
4.5

The brush and mop hardware design is repeatedly highlighted as purposeful and effective.

Product 2: Roborock Qrevo Edge Robot Vacuum...
No score yet
Hair-removal channel issues
Product 1: Roborock Saros 10R Robot Vacuum...
3.5

The hair channel is mostly successful, though at least one reviewer still found a removable clump between the brush sections.

Product 2: Roborock Qrevo Edge Robot Vacuum...
No score yet
Hair Pickup — Carpets
Product 1: Roborock Saros 10R Robot Vacuum...
5.0

Carpet hair pickup is excellent in formal testing, especially versus category averages.

Product 2: Roborock Qrevo Edge Robot Vacuum...
4.2

Carpet hair pickup is above average, with strong performance on flattened pet hair in at least one controlled test.

Hair Pickup — Hard Floors
Product 1: Roborock Saros 10R Robot Vacuum...
No score yet
Product 2: Roborock Qrevo Edge Robot Vacuum...
4.1

Hair pickup on hard floors is generally very good, though one review notes it can occasionally leave a bit of pet fluff behind in tricky spots.

Hair‑Wrap / Tangle Resistance
Product 1: Roborock Saros 10R Robot Vacuum...
5.0

Anti-tangle performance is a major strength, with multiple reviewers finding little to no wrapped hair.

Product 2: Roborock Qrevo Edge Robot Vacuum...
4.6

Tangle resistance is a standout theme: the split anti-tangle brush design is repeatedly praised and testing reports near-zero hair wrap.

Hard Floor — Fine Dust Pickup
Product 1: Roborock Saros 10R Robot Vacuum...
5.0

Hard-floor fine-dust pickup is excellent in testing, with near-complete pickup results in one comparison.

Product 2: Roborock Qrevo Edge Robot Vacuum...
4.5

Fine dust pickup on hard floors is repeatedly strong in testing, with high scores in flour/dust-style trials.

Hard Floor — Large Debris Intake
Product 1: Roborock Saros 10R Robot Vacuum...
4.5

Hard-floor large-debris pickup is strong, including intact snack pieces and other bigger everyday messes.

Product 2: Roborock Qrevo Edge Robot Vacuum...
4.5

Large-debris pickup on hard floors is also excellent, handling cereal and mixed debris well without excessive scatter.

Headlight and LED lights
Product 1: Roborock Saros 10R Robot Vacuum...
4.0

Front lighting is present and useful in darker spaces.

Product 2: Roborock Qrevo Edge Robot Vacuum...
No score yet
Heating element
Product 1: Roborock Saros 10R Robot Vacuum...
4.5

The dock’s hot-water washing and heated drying are recurring strengths in the reviews.

Product 2: Roborock Qrevo Edge Robot Vacuum...
No score yet
Innovation compared to competitors
Product 1: Roborock Saros 10R Robot Vacuum...
4.5

Reviewers frame the 10R as a meaningful step forward, especially in navigation, low-profile design, and flagship feature integration.

Product 2: Roborock Qrevo Edge Robot Vacuum...
4.5

Innovation callouts center on the chassis-lift capability and the split anti-tangle brush, plus the edge-reaching mop/brush hardware that targets common robot-cleaning weak spots.

Kid-friendliness
Product 1: Roborock Saros 10R Robot Vacuum...
4.0

It handles kid-related clutter reasonably well, including toys and craft-project obstacles.

Product 2: Roborock Qrevo Edge Robot Vacuum...
No score yet
Large debris handling
Product 1: Roborock Saros 10R Robot Vacuum...
4.5

Large debris pickup is good on hard floors, including bigger crumbs and intact snack pieces.

Product 2: Roborock Qrevo Edge Robot Vacuum...
No score yet
Low-profile design
Product 1: Roborock Saros 10R Robot Vacuum...
4.8

The slim low-profile design is a major differentiator and repeatedly praised.

Product 2: Roborock Qrevo Edge Robot Vacuum...
No score yet
Maintenance requirements
Product 1: Roborock Saros 10R Robot Vacuum...
3.5

Maintenance is reduced versus simpler robots, but periodic dock and tank upkeep still remains.

Product 2: Roborock Qrevo Edge Robot Vacuum...
4.0

Maintenance is mostly predictable: refill water, empty dirty water, replace bags, and periodically clean brushes/filters; not zero-effort, but manageable for a premium docked robot.

Maneuverability and Handling
Product 1: Roborock Saros 10R Robot Vacuum...
4.5

Handling is agile, with good threshold approaches and careful movement around clutter and obstacles.

Product 2: Roborock Qrevo Edge Robot Vacuum...
No score yet
Map and Path Efficiency (Robot Vacuums)
Product 1: Roborock Saros 10R Robot Vacuum...
4.7

Mapping and route execution are consistently strong, with accurate navigation and few wasted passes.

Product 2: Roborock Qrevo Edge Robot Vacuum...
4.5

Mapping and pathing are widely praised: quick maps, efficient room coverage, and reliable navigation that reduces random wandering.

Mop lifting system
Product 1: Roborock Saros 10R Robot Vacuum...
4.5

Mop lifting and pad removal add real flexibility on mixed flooring and carpeted zones.

Product 2: Roborock Qrevo Edge Robot Vacuum...
4.3

The mop-lift system reliably raises pads on carpet and rugs, reducing wet-carpet incidents and allowing mixed-surface cleaning runs.

Mopping performance
Product 1: Roborock Saros 10R Robot Vacuum...
4.3

Mopping performance is broadly strong, especially on daily messes and edge work, though not every comparison puts it first.

Product 2: Roborock Qrevo Edge Robot Vacuum...
4.2

Everyday mopping performance is rated very strong, with good results on dried stains; heavier spills may require higher settings, extra passes, or a remop cycle.

Noise level
Product 1: Roborock Saros 10R Robot Vacuum...
4.3

General operating noise is rated favorably, though one test measured about 67 dB on Max+ rather than whisper-quiet performance.

Product 2: Roborock Qrevo Edge Robot Vacuum...
4.1

Noise is generally acceptable for daily use, with mopping noted as relatively quiet; max-power vacuuming is still noticeably loud (low-to-mid 70 dB range in one test).

Obstacle Avoidance (Robot)
Product 1: Roborock Saros 10R Robot Vacuum...
4.3

Obstacle avoidance is excellent overall, though not perfect with every cable or difficult object.

Product 2: Roborock Qrevo Edge Robot Vacuum...
4.2

Reactive AI obstacle avoidance is generally effective (with camera-based recognition in some models), but reviewers still see occasional misses or conservative detours that can leave small areas untouched.

Odor control
Product 1: Roborock Saros 10R Robot Vacuum...
4.5

Heated mop drying helps with freshness and reduces the risk of lingering damp odors or mildew.

Product 2: Roborock Qrevo Edge Robot Vacuum...
No score yet
Ongoing ownership costs (bags, filters, batteries)
Product 1: Roborock Saros 10R Robot Vacuum...
3.5

Ownership costs are moderate for a flagship: replacement bags and optional solution are extra recurring purchases.

Product 2: Roborock Qrevo Edge Robot Vacuum...
No score yet
Overall cleaning convenience
Product 1: Roborock Saros 10R Robot Vacuum...
4.8

Cleaning convenience is a major selling point, with reviewers emphasizing time savings and minimal babysitting.

Product 2: Roborock Qrevo Edge Robot Vacuum...
No score yet
Overall durability/longevity
Product 1: Roborock Saros 10R Robot Vacuum...
4.0

Longer-use reviews suggest stable performance over months rather than quick early drop-off.

Product 2: Roborock Qrevo Edge Robot Vacuum...
No score yet
Overall opinion
Product 1: Roborock Saros 10R Robot Vacuum...
4.7

Overall sentiment is strongly positive, with multiple reviewers ranking it at or near the top of the category.

Product 2: Roborock Qrevo Edge Robot Vacuum...
No score yet
Packaging quality
Product 1: Roborock Saros 10R Robot Vacuum...
4.0

Unboxing and packaging impressions are positive, with setup materials described as minimal and tidy.

Product 2: Roborock Qrevo Edge Robot Vacuum...
No score yet
Pet-Ready Features
Product 1: Roborock Saros 10R Robot Vacuum...
4.5

Pet-oriented features are a plus, with pet identification and camera-based pet check-ins called out as useful.

Product 2: Roborock Qrevo Edge Robot Vacuum...
4.3

Reviewers highlight pet-friendly strengths: excellent hair handling, good pickup of pet hair, and smarter avoidance features (including pet-related options and snapshots) that help around bowls, toys, and messes.

Price and Value
Product 1: Roborock Saros 10R Robot Vacuum...
4.0

Reviews agree the price is high, but several say the feature set and cleaning performance largely justify it.

Product 2: Roborock Qrevo Edge Robot Vacuum...
3.4

Value is the biggest point of debate: performance is premium, but several reviews frame it as expensive at full MSRP and much easier to justify when discounted.

Privacy controls
Product 1: Roborock Saros 10R Robot Vacuum...
4.0

Privacy protections are better than basic robot cams, with physical confirmation needed for remote viewing, though cloud dependence remains.

Product 2: Roborock Qrevo Edge Robot Vacuum...
3.2

Camera-based features enable better object recognition and remote viewing in some configurations, but privacy-sensitive buyers may prefer variants without camera capability.

Runtime
Product 1: Roborock Saros 10R Robot Vacuum...
4.5

Runtime and coverage are both above average, with strong square-footage-per-charge impressions. Battery efficiency is above average in formal testing, not just raw runtime length.

Product 2: Roborock Qrevo Edge Robot Vacuum...
No score yet
Sanitizing performance
Product 1: Roborock Saros 10R Robot Vacuum...
4.5

Hot-water mop washing and bacteria-reduction claims give it a meaningful sanitizing edge over simpler docks.

Product 2: Roborock Qrevo Edge Robot Vacuum...
No score yet
Self-cleaning cycle
Product 1: Roborock Saros 10R Robot Vacuum...
4.5

The dock’s self-cleaning behavior reduces manual mop maintenance and supports more hands-off use.

Product 2: Roborock Qrevo Edge Robot Vacuum...
4.5

The dock earns consistent praise for hands-off care: hot-water mop washing, warm-air drying, and self-cleaning functions that keep pads fresher between manual deep cleans.

Software-update support / feature longevity
Product 1: Roborock Saros 10R Robot Vacuum...
4.0

Feature longevity looks decent from the review evidence, with good support reputation and update mentions.

Product 2: Roborock Qrevo Edge Robot Vacuum...
4.0

Software support is viewed as important because some behavior (like water usage and streaking control) may improve with firmware updates, and smart-home integrations are part of the long-term appeal.

Solution / Liquid system
Product 1: Roborock Saros 10R Robot Vacuum...
4.5

The liquid system is well-equipped, including automatic detergent dispensing and managed mop-water handling.

Product 2: Roborock Qrevo Edge Robot Vacuum...
3.3

A common limitation is the lack of an auto detergent/solution tank; if you want solution, you manually add it to the clean water tank.

Storage footprint and upright-stand stability
Product 1: Roborock Saros 10R Robot Vacuum...
4.0

The dock is described as relatively compact for the class, though it still takes dedicated floor space.

Product 2: Roborock Qrevo Edge Robot Vacuum...
No score yet
Streaking / Residue
Product 1: Roborock Saros 10R Robot Vacuum...
3.3

Residue control is mixed: some reviews report clean finishes, while others note wetter trails or minor stickiness.

Product 2: Roborock Qrevo Edge Robot Vacuum...
3.7

Streaking and smearing can happen when water output is high or when tackling big wet messes; several reviews say dialing settings down helps, and it appears improved versus some close siblings.

Stuck resistance
Product 1: Roborock Saros 10R Robot Vacuum...
3.0

Stuck resistance is only average: several reviewers still mention occasional hang-ups or rescues.

Product 2: Roborock Qrevo Edge Robot Vacuum...
4.2

Most testing suggests it navigates without frequent hang-ups, but real-world owners still report the occasional rescue when it wedges under furniture or hits an odd edge case.

Suction and Airflow
Product 1: Roborock Saros 10R Robot Vacuum...
4.5

Reviews describe suction as strong and effective, with enough power to leave noticeably less debris behind.

Product 2: Roborock Qrevo Edge Robot Vacuum...
4.6

Across reviews, suction is consistently described as flagship-strong (around 18,000-18,500 Pa) with very high debris pickup on both hard floors and carpet.

Suitability for heavy-duty use
Product 1: Roborock Saros 10R Robot Vacuum...
4.5

The robot looks well-suited to busy homes with frequent cleaning needs rather than occasional light use.

Product 2: Roborock Qrevo Edge Robot Vacuum...
No score yet
Suitability for small spaces
Product 1: Roborock Saros 10R Robot Vacuum...
4.0

Its compact dock and slim robot help it fit better than many rivals in tighter homes or rooms.

Product 2: Roborock Qrevo Edge Robot Vacuum...
No score yet
Support and Reliability
Product 1: Roborock Saros 10R Robot Vacuum...
4.5

Reliability impressions are positive overall, with reviewers calling it reliable and easy to trust for routine cleaning.

Product 2: Roborock Qrevo Edge Robot Vacuum...
No score yet
Under-Furniture Pickup
Product 1: Roborock Saros 10R Robot Vacuum...
5.0

Under-furniture cleaning is one of the clearest advantages thanks to the unusually low body height.

Product 2: Roborock Qrevo Edge Robot Vacuum...
No score yet
Value-for-money
Product 1: Roborock Saros 10R Robot Vacuum...
4.0

Despite the premium price, several reviews say the overall package still earns its keep.

Product 2: Roborock Qrevo Edge Robot Vacuum...
No score yet
Versatility
Product 1: Roborock Saros 10R Robot Vacuum...
4.5

The product is genuinely versatile, supporting vacuum-only, mop-only, and simultaneous vacuum-and-mop use.

Product 2: Roborock Qrevo Edge Robot Vacuum...
No score yet
Water tank
Product 1: Roborock Saros 10R Robot Vacuum...
4.0

The dock’s clean and dirty water tanks are easy to access, though they still need regular attention.

Product 2: Roborock Qrevo Edge Robot Vacuum...
4.3

The dock manages clean and dirty water with auto-refill to the robot; owners still need to refill the clean tank and empty the dirty tank periodically.