Compare Shark Power Detect Robot Vacuum vs Roomba Combo j9+ Robot Vacuum & Mop

P1 Shark Power Detect Robot Vacuum
P2 Roomba Combo j9+ Robot Vacuum & Mop

Comparison Takeaways

Shark Power Detect Robot Vacuum

Where It Has the Edge

  • Carpet — Medium-Pile Pickup is 4.4 vs 3.6. Medium-pile carpet performance is one of its best categories in testing-style reviews, including strong deep-clean outcomes; some households...
  • Corner Cleaning (Robot) is 3.8 vs 3.1. Corner performance is inconsistent: some owners report it reaches corners well, while others say it misses corners or...
  • Carpet — High-Pile Pickup is 3.9 vs 3.3. High-pile and very thick rugs are a mixed bag: some report easy transitions and decent pickup, while others...
  • Price and Value is 4.1 vs 3.5. Value is often rated high when purchased on sale, especially given strong pickup and a bagless self-empty base;...

Roomba Combo j9+ Robot Vacuum & Mop

Where It Has the Edge

  • AI, Smart, App and Automation is 4.5 vs 2.9. App and automation are feature-rich: schedules, zones, room-specific routines, dirt-prioritization, and voice assistant support are widely praised. Common...
  • Battery and Charging is 4.5 vs 3.0. Battery performance is generally strong for large-area runs, often finishing typical floors without intervention and returning to recharge...
  • Privacy controls is 4.1 vs 2.6. Privacy controls are a recurring discussion point because the robot uses a camera for navigation and obstacle recognition....
  • Under-Furniture Pickup is 4.4 vs 3.0. Under-furniture reach is good thanks to the low profile and persistent navigation, with multiple reviewers noting it cleans...
Average score
Product 1: Shark Power Detect Robot Vacuum
3.8
Product 2: Roomba Combo j9+ Robot Vacuum...
4.2
Adaptive chassis lift
Product 1: Shark Power Detect Robot Vacuum
3.9

The lift/threshold behavior is a noted advantage for handling bumps and some transitions, though it does not solve every real-world snag scenario and may require supervision on first runs.

Product 2: Roomba Combo j9+ Robot Vacuum...
No score yet
Aesthetic design and finish
Product 1: Shark Power Detect Robot Vacuum
No score yet
Product 2: Roomba Combo j9+ Robot Vacuum...
4.3

Design is frequently praised: the dock’s wood-look top and furniture-like footprint blend into living spaces better than many rivals. A minority dislike the faux-wood finish or find the dock less attractive in person.

AI, Smart, App and Automation
Product 1: Shark Power Detect Robot Vacuum
2.9

App and automation are widely criticized versus competitors: limited scheduling flexibility, missing live progress features in some experiences, bugs/logouts, occasional connectivity problems, and inconsistent smart-assistant functionality.

Product 2: Roomba Combo j9+ Robot Vacuum...
4.5

App and automation are feature-rich: schedules, zones, room-specific routines, dirt-prioritization, and voice assistant support are widely praised. Common nitpicks include occasional connectivity hiccups, confusing menu choices, and missing real-time map progress in some experiences.

Airflow blowback
Product 1: Shark Power Detect Robot Vacuum
No score yet
Product 2: Roomba Combo j9+ Robot Vacuum...
4.1

Blowback and scattering are usually controlled, with some reviewers noting it avoids flinging small particles. However, the side brush can flick larger debris around, and a few tests report scattered grains on hard floors.

Area Rug Handling
Product 1: Shark Power Detect Robot Vacuum
4.0

Area rug handling is generally positive on low-to-medium rugs and transitions, but very thick rugs can be avoided or cause limitations depending on pile and thresholds.

Product 2: Roomba Combo j9+ Robot Vacuum...
4.2

Rug handling is usually good, especially because the retracting mop prevents wet pads from dragging onto carpets. Still, the mop arm can occasionally catch on rug edges/corners, and very thick or tricky rugs may need keep-out or no-mop zoning.

Assembly and Setup
Product 1: Shark Power Detect Robot Vacuum
4.4

No summary yet.

Product 2: Roomba Combo j9+ Robot Vacuum...
4.7

Setup is typically quick and well-guided through the app, with packaging and quick-start materials helping. Initial mapping can take multiple runs, and a few users report early hiccups aligning the robot on the dock or connecting to Wi-Fi.

Automatic shutoff for obstructions
Product 1: Shark Power Detect Robot Vacuum
No score yet
Product 2: Roomba Combo j9+ Robot Vacuum...
4.5

The robot is described as responsive to obstructions, stopping or rerouting around people/pets and common objects. It’s not perfect in every edge case, but it tends to avoid creating bigger messes when something blocks its path.

Battery and Charging
Product 1: Shark Power Detect Robot Vacuum
3.0

Battery capacity and efficiency are a recurring drawback for larger homes: it may need recharge-and-resume cycles and some users report long recharge waits, though smaller homes (especially on eco) can finish without recharging.

Product 2: Roomba Combo j9+ Robot Vacuum...
4.5

Battery performance is generally strong for large-area runs, often finishing typical floors without intervention and returning to recharge as needed. Charging can feel slow for some users, but recharge-and-resume behavior is reliable in most accounts.

Bin and Bag
Product 1: Shark Power Detect Robot Vacuum
4.6

The bagless bin/base system is a major differentiator and cost-saver, frequently praised for convenience; however, owners often dispute the advertised days of storage in pet-heavy homes.

Product 2: Roomba Combo j9+ Robot Vacuum...
4.6

The bagged dock system is praised for cleanliness and low-touch disposal, typically lasting weeks to around two months depending on shedding and home size. Internal bin is small but rarely needs manual emptying thanks to frequent auto-empty cycles.

Build quality and durability
Product 1: Shark Power Detect Robot Vacuum
3.3

Build quality impressions range from solid and weighty to disappointing, with scattered reports of wheel issues, sensor parts coming loose, and units failing early under demanding usage.

Product 2: Roomba Combo j9+ Robot Vacuum...
4.0

Build quality is generally described as solid with removable, serviceable parts. Some mention cosmetic scuffing during early mapping runs from gentle bumping, but no widespread structural issues are reported in these reviews.

Carpet — High-Pile Pickup
Product 1: Shark Power Detect Robot Vacuum
3.9

High-pile and very thick rugs are a mixed bag: some report easy transitions and decent pickup, while others note it avoids very thick rugs or struggles to fully clean them.

Product 2: Roomba Combo j9+ Robot Vacuum...
3.3

High-pile/shag carpets are a weak spot for the vacuum-only model in one review, with quick tangling/stalling in long fibers. For homes with lots of high-pile, expectations should be tempered or zones configured to avoid problem rugs.

Carpet — Low-Pile Pickup
Product 1: Shark Power Detect Robot Vacuum
4.3

Low-pile carpet pickup is typically rated positively, with consistent lines and solid pickup, though some owners still see periodic misses that require spot cleaning.

Product 2: Roomba Combo j9+ Robot Vacuum...
4.3

Low-pile carpet pickup is generally very good, handling daily hair and debris well. Some users still notice occasional leftover strands on rugs and may choose extra passes for a more thorough finish.

Carpet — Medium-Pile Pickup
Product 1: Shark Power Detect Robot Vacuum
4.4

Medium-pile carpet performance is one of its best categories in testing-style reviews, including strong deep-clean outcomes; some households still report visible hair left behind depending on settings and battery constraints.

Product 2: Roomba Combo j9+ Robot Vacuum...
3.6

No summary yet.

Clogging and debris prevention
Product 1: Shark Power Detect Robot Vacuum
3.4

Debris and clogging prevention is good when the robot runs frequently, but several reports describe bin packing, brush-area clogging, or performance dropping unless filters/screens are maintained.

Product 2: Roomba Combo j9+ Robot Vacuum...
No score yet
Comparative performance
Product 1: Shark Power Detect Robot Vacuum
No score yet
Product 2: Roomba Combo j9+ Robot Vacuum...
4.3

Comparisons usually place the j9+/Combo j9+ among the best for vacuuming and obstacle avoidance, with advantages over older Roombas. Several reviewers note that top hybrid competitors can outperform it in deep scrubbing or self-maintenance features.

Controls and UI
Product 1: Shark Power Detect Robot Vacuum
3.3

Controls and UI are described as simple and usable by some, but many report a dated or clunky experience with map editing, room selection limitations, and occasional setup/registration friction.

Product 2: Roomba Combo j9+ Robot Vacuum...
4.3

Controls are straightforward: the app handles most functions, with a simple on-robot button for start/pause and basic status lights. Some reviewers wish for richer in-app live tracking and clearer guidance in the manual/owner docs.

Corner Cleaning (Robot)
Product 1: Shark Power Detect Robot Vacuum
3.8

Corner performance is inconsistent: some owners report it reaches corners well, while others say it misses corners or keeps a noticeable distance from furniture, leaving uncleaned wedges.

Product 2: Roomba Combo j9+ Robot Vacuum...
3.1

Corner cleaning is a known limitation: as a round robot with a single side brush, it can miss tight corners or smear debris in corner flour-style tests. Edges and open perimeters are better than sharp corners.

Crevice / Groove Pickup (Hard Floors)
Product 1: Shark Power Detect Robot Vacuum
4.8

Crevice and groove pickup is described as excellent in lab-style testing, ranking near the top of large comparison pools, suggesting strong edge-adjacent intake capability when it reaches the area.

Product 2: Roomba Combo j9+ Robot Vacuum...
4.7

Crevice and groove pickup is repeatedly called out as improved versus older Roombas, aided by stronger suction and the dual rubber rollers. It performs well on seams and along transitions in testing.

Docking and Auto-Empty Reliability (Robot)
Product 1: Shark Power Detect Robot Vacuum
4.3

Docking and auto-empty behavior is generally reliable, with many reports of consistent returns and empty-then-continue behavior, but some note failures when the bin is overly compacted or the base fills faster than advertised.

Product 2: Roomba Combo j9+ Robot Vacuum...
4.6

Auto-empty docking is consistently reliable, with the robot returning to empty and resume without much user intervention. Bagged disposal keeps the process clean, and many users report weeks of hands-free vacuuming before needing to swap the bag.

Dock noise
Product 1: Shark Power Detect Robot Vacuum
3.3

Dock emptying is commonly described as loud, even by owners who find the robot itself relatively quiet during cleaning.

Product 2: Roomba Combo j9+ Robot Vacuum...
3.6

Dock emptying volume is inconsistent across reviewers: some describe it as very loud, while others find it comparatively quieter and less high-pitched than older Roombas. Either way, the empty cycle is brief and can be scheduled around quiet hours.

Dried-On Stain Removal
Product 1: Shark Power Detect Robot Vacuum
No score yet
Product 2: Roomba Combo j9+ Robot Vacuum...
4.2

For dried-on stains, SmartScrub/back-and-forth motions improve results and can remove many common spots like dried juice, litter prints, and tracked-in dirt. Very sticky food or heavy buildup may still require manual spot work or a pad change afterward.

Ease of use
Product 1: Shark Power Detect Robot Vacuum
No score yet
Product 2: Roomba Combo j9+ Robot Vacuum...
4.6

Day-to-day use is strongly praised once maps are set: scheduling, recharge-and-resume, hands-free emptying, and reliable obstacle avoidance reduce babysitting. Early learning runs can require a bit of attention, but it becomes largely set-and-forget.

Edge and Baseboard Cleaning (Hard Floors)
Product 1: Shark Power Detect Robot Vacuum
3.9

Edge/baseboard cleaning benefits from the brand’s edge-blast concept, but real-world results are mixed: some users praise corners/edges while others say it leaves a buffer or misses patches near objects.

Product 2: Roomba Combo j9+ Robot Vacuum...
3.5

Edge cleaning is good for a round robot but not flawless: it follows baseboards well in open areas yet can leave debris along edges and misses some grime in tight perimeter spots, especially during mopping.

Edge‑Following Accuracy (Robot)
Product 1: Shark Power Detect Robot Vacuum
3.6

Edge-following accuracy is generally decent with orderly perimeter passes, but several owners report it keeps extra distance from legs/frames or avoids under-table zones, reducing true edge contact in busy rooms.

Product 2: Roomba Combo j9+ Robot Vacuum...
No score yet
Emptying and Mess Control
Product 1: Shark Power Detect Robot Vacuum
4.0

Mess control during emptying is good in normal use, but heavy dust/hair loads can pack the robot bin and lead to errors or partial emptying, prompting users to run it more often or empty the base more frequently.

Product 2: Roomba Combo j9+ Robot Vacuum...
No score yet
Filter-change indicator
Product 1: Shark Power Detect Robot Vacuum
No score yet
Product 2: Roomba Combo j9+ Robot Vacuum...
4.6

App-based maintenance reminders for filters help keep performance consistent, with clear prompts on when to replace. Filters still require planned replenishment since they aren’t washable.

Filtration / Dust Containment
Product 1: Shark Power Detect Robot Vacuum
4.3

Filtration and dust containment are broadly viewed as strong thanks to HEPA-style sealing in the base and decent containment during normal operation, though filters and screens may need regular cleaning to maintain airflow.

Product 2: Roomba Combo j9+ Robot Vacuum...
4.5

Dust containment is generally solid, helped by a sealed, bagged dock and replaceable filters. Filters are not washable and need periodic replacement, but most reviewers report clean handling with minimal dust mess.

Hair-removal channel issues
Product 1: Shark Power Detect Robot Vacuum
3.4

Hair-channel and brush-area issues show up in a minority of reports, including clogging around the rotator/roller area and the need to clean after each run in demanding homes.

Product 2: Roomba Combo j9+ Robot Vacuum...
No score yet
Hair Pickup — Carpets
Product 1: Shark Power Detect Robot Vacuum
4.0

Hair pickup on carpets is often praised for pet hair, but long-hair performance and consistency varies by household, settings, and maintenance frequency.

Product 2: Roomba Combo j9+ Robot Vacuum...
4.2

Carpet hair pickup is strong in many reports, though a few users still see stray hairs on low-pile rugs and may prefer an extra pass for perfection. Overall it’s above average for daily maintenance.

Hair Pickup — Hard Floors
Product 1: Shark Power Detect Robot Vacuum
4.3

Hair pickup on hard floors is a strong point in many pet-owner reports, though some users still note occasional wads or missed strands that need spot cleanup.

Product 2: Roomba Combo j9+ Robot Vacuum...
4.5

Hard-floor hair pickup is a consistent strength, especially for pets and long human hair. A few mention the occasional hair clump, but overall results are strong with minimal leftover hairballs.

Hair‑Wrap / Tangle Resistance
Product 1: Shark Power Detect Robot Vacuum
3.6

Tangle resistance is mixed: some report minimal tangles and improved brush design, while others report jams and roller/brush buildup under heavy pet-hair conditions.

Product 2: Roomba Combo j9+ Robot Vacuum...
4.3

Dual rubber rollers reduce tangling compared with bristle rollers, and several reviewers report noticeably less hair wrap. Some periodic hair removal is still needed, especially in heavy-shedding homes.

Hard Floor — Fine Dust Pickup
Product 1: Shark Power Detect Robot Vacuum
4.4

Hard-floor fine dust performance is generally a strong point, helped by good airflow and frequent-pass patterns, though owners note it is not a perfect substitute for a full-size vacuum in corners/edges.

Product 2: Roomba Combo j9+ Robot Vacuum...
4.6

Fine dust pickup on hard floors is consistently reported as excellent, including flour/sand-style tests in some reviews. Multiple passes can further improve results, especially on carpet fine-particle stress tests.

Hard Floor — Large Debris Intake
Product 1: Shark Power Detect Robot Vacuum
4.4

Large debris intake on hard floors is commonly reported as very good, including pet food and tracked-in dirt, with occasional misses when the robot is distracted by obstacles or low battery behavior.

Product 2: Roomba Combo j9+ Robot Vacuum...
4.2

Large debris pickup is strong overall, though a few note the side brush can flick bigger bits around before they’re captured. In most homes it handles cereal, kibble, and tracked-in debris well, with occasional stragglers in corners.

Innovation compared to competitors
Product 1: Shark Power Detect Robot Vacuum
No score yet
Product 2: Roomba Combo j9+ Robot Vacuum...
4.6

The combo design is seen as meaningfully innovative: the fully retracting mop arm reduces carpet-wetting risk, and the auto-fill dock adds true hands-free mopping convenience. It’s less novel on pad washing, where competitors often do more.

Low-profile design
Product 1: Shark Power Detect Robot Vacuum
No score yet
Product 2: Roomba Combo j9+ Robot Vacuum...
4.3

The low-profile body helps it fit under more furniture than bulkier rivals, improving coverage in real homes. Dock size is still substantial, but the robot’s height is generally a plus.

Maintenance requirements
Product 1: Shark Power Detect Robot Vacuum
3.6

Maintenance needs are typical-to-high for pet homes: owners frequently mention cleaning sensors, screens, and brush rolls to keep performance strong and prevent errors.

Product 2: Roomba Combo j9+ Robot Vacuum...
3.6

Maintenance is moderate: the bagged dock reduces daily hassle, but mop pads still require manual washing/swapping and parts like filters/brushes need periodic attention. Several reviewers call the pad-care step the main ongoing chore.

Map and Path Efficiency (Robot Vacuums)
Product 1: Shark Power Detect Robot Vacuum
4.0

Mapping is often fast and coverage is systematic, producing straight, efficient patterns; however, navigation efficiency is sometimes described as slightly below average in timed coverage tests and can be disrupted by avoidance behavior.

Product 2: Roomba Combo j9+ Robot Vacuum...
4.2

Mapping and pathing are generally systematic and thorough, with efficient row cleaning once the home is learned. Initial mapping is sometimes slow or clumsy compared to LiDAR bots, and a few tests note slightly longer overall run times than some competitors.

Mop lifting system
Product 1: Shark Power Detect Robot Vacuum
No score yet
Product 2: Roomba Combo j9+ Robot Vacuum...
4.7

The retracting mop mechanism is a defining strength, reliably keeping carpets dry by fully lifting/stowing the pad on top of the robot. It enables true vacuum-and-mop-in-one-run behavior without worrying about damp rugs.

Mopping performance
Product 1: Shark Power Detect Robot Vacuum
No score yet
Product 2: Roomba Combo j9+ Robot Vacuum...
4.2

Mopping is generally effective for routine upkeep, with smart back-and-forth scrubbing helping on stains. It can struggle with sticky messes and heavy grime compared with spinning/vibrating pad competitors, and edges/corners remain challenging.

Noise level
Product 1: Shark Power Detect Robot Vacuum
3.9

During cleaning, noise is usually described as reasonable (especially on eco), but max power is louder and dock emptying noise is consistently called out as very loud.

Product 2: Roomba Combo j9+ Robot Vacuum...
3.8

Noise is a mixed bag: in-room vacuuming is often described as noticeable but tolerable, while auto-emptying can be loud for some. A few reviewers found the empty cycle quieter than other robots, but others measured/mentioned it as disruptive.

Obstacle Avoidance (Robot)
Product 1: Shark Power Detect Robot Vacuum
3.3

Obstacle avoidance is helpful but not elite: reviews describe it as effective around half the time versus flagship models, with mixed reports on cords and at least one clear failure case for pet accidents.

Product 2: Roomba Combo j9+ Robot Vacuum...
4.6

Obstacle avoidance is a defining strength: the camera-based system reliably dodges cords, toys, shoes, and pet waste in most tests, and often outperforms rival bots in clutter. It’s not flawless, but it dramatically reduces stuck events and accidental messes versus non-vision robots.

Odor control
Product 1: Shark Power Detect Robot Vacuum
4.1

Odor control is generally seen as a nice-to-have feature in the base, with some users enjoying the scent and others preferring to disable or remove the odor component.

Product 2: Roomba Combo j9+ Robot Vacuum...
No score yet
Ongoing ownership costs (bags, filters, batteries)
Product 1: Shark Power Detect Robot Vacuum
No score yet
Product 2: Roomba Combo j9+ Robot Vacuum...
3.7

Ongoing costs are a real factor: bags, filters, brushes, and occasional pads add recurring spend. The upside is the bagged system is clean and parts are widely available, but budget-minded buyers should plan for replenishment.

Overall durability/longevity
Product 1: Shark Power Detect Robot Vacuum
3.3

Longevity is uncertain in the review set: some report months to years of strong daily operation, while others cite early battery failure, firmware-related problems, or breakdown around the 1-year mark.

Product 2: Roomba Combo j9+ Robot Vacuum...
No score yet
Pet-Ready Features
Product 1: Shark Power Detect Robot Vacuum
No score yet
Product 2: Roomba Combo j9+ Robot Vacuum...
4.7

Pet households benefit from strong poop/pet-waste avoidance, plus reliable hair pickup on hard floors and rugs. Multiple reviews highlight the pet waste guarantee as a key confidence booster in cluttered homes.

Price and Value
Product 1: Shark Power Detect Robot Vacuum
4.1

Value is often rated high when purchased on sale, especially given strong pickup and a bagless self-empty base; dissatisfaction rises when buyers compare app features, runtime, or reliability to premium competitors.

Product 2: Roomba Combo j9+ Robot Vacuum...
3.5

Value is polarizing: most agree performance and automation are premium, but the MSRP feels steep and many recommend waiting for sales. Those upgrading from older Roombas or prioritizing obstacle avoidance are more likely to feel it’s worth the spend.

Privacy controls
Product 1: Shark Power Detect Robot Vacuum
2.6

A small but serious set of reports raise app security and account-access concerns, including suspicious login prompts and perceived credential-harvesting behavior, reducing trust for privacy-sensitive buyers.

Product 2: Roomba Combo j9+ Robot Vacuum...
4.1

Privacy controls are a recurring discussion point because the robot uses a camera for navigation and obstacle recognition. Reviews note opt-in options and iRobot’s stated controls/encryption, but some users may still prefer a non-camera approach depending on comfort.

Runtime
Product 1: Shark Power Detect Robot Vacuum
3.1

Default-mode runtime is adequate for smaller floor plans, but many reports imply the robot uses a large share of charge per run and may not complete larger areas without a recharge cycle.

Product 2: Roomba Combo j9+ Robot Vacuum...
4.3

Runtime is generally strong for a premium robot, commonly around two hours in everyday use, with recharge-and-resume covering larger spaces. Expect longer total job times when both vacuuming and mopping, or when using max power/two-pass settings.

Software-update support / feature longevity
Product 1: Shark Power Detect Robot Vacuum
2.6

Software updates are a risk point in the review set: at least one owner reports an update broke voice-assistant control and introduced errors, while others mention waiting on firmware fixes or fearing longevity impacts.

Product 2: Roomba Combo j9+ Robot Vacuum...
No score yet
Streaking / Residue
Product 1: Shark Power Detect Robot Vacuum
No score yet
Product 2: Roomba Combo j9+ Robot Vacuum...
4.0

Residue and streaking are usually minor, but some reviewers notice occasional streaks or sticky patches after messy tests like jam/jelly. Regular pad washing and appropriate water/solution settings help reduce visible streaking.

Stuck resistance
Product 1: Shark Power Detect Robot Vacuum
3.9

Stuck resistance is often praised, with reports of fewer under-furniture traps than older robots and better threshold handling, though some homes still see hang-ups on floor registers, table bases, or unusual legs.

Product 2: Roomba Combo j9+ Robot Vacuum...
3.9

Stuck events are infrequent once maps and keep-out zones are tuned, but the robot can still snag on bath mats, high-pile rugs, tight gaps, or situations where the mop arm can’t retract cleanly. Overall, it improves after the first few runs.

Suction and Airflow
Product 1: Shark Power Detect Robot Vacuum
4.5

Across sources, suction and airflow are repeatedly described as strong for the price class, with above-average deep-clean results on carpet and the ability to pick up heavier debris like pet kibble. A minority of owners report weaker-than-expected suction over time or on certain carpet situations.

Product 2: Roomba Combo j9+ Robot Vacuum...
4.5

Across reviews, suction is a standout: strong pickup on hard floors and carpet, with smart boost behavior and fewer repeat passes than older Roombas. A few testers still rate raw power a step behind the most aggressive premium competitors, but most call it top-tier for daily debris.

Support and Reliability
Product 1: Shark Power Detect Robot Vacuum
3.5

Support experiences are mixed-to-positive: some owners praise quick, helpful assistance, while others report prolonged escalations or unresolved software issues.

Product 2: Roomba Combo j9+ Robot Vacuum...
3.6

Reliability feedback is mostly positive over weeks of use, but a few reviews mention glitches (unfinished jobs, mode misbehavior) and at least one report of a defective unit that required replacement. Keeping receipts for early runs is commonly advised.

Under-Furniture Pickup
Product 1: Shark Power Detect Robot Vacuum
3.0

Under-furniture pickup is polarizing: some like that it is taller and avoids getting trapped, while others criticize the size for not fitting under key furniture and leaving those areas to an older robot or manual vacuum.

Product 2: Roomba Combo j9+ Robot Vacuum...
4.4

Under-furniture reach is good thanks to the low profile and persistent navigation, with multiple reviewers noting it cleans under beds, desks, and tables. Very low clearances still depend on your furniture height.

Water tank
Product 1: Shark Power Detect Robot Vacuum
No score yet
Product 2: Roomba Combo j9+ Robot Vacuum...
4.5

Auto-fill dock is a major convenience, with many citing weeks of mopping before refills in average use. A few find the reservoir awkward to handle/refill, but the concept and day-to-day automation score highly.