Average score
Product 1: Shark PowerDetect UV Reveal Robot...
4.2
Product 2: Roomba Combo j9+ Robot Vacuum...
4.2
Aesthetic design and finish
Product 1: Shark PowerDetect UV Reveal Robot...
4.5

The related PowerDetect design was described as sleek and premium-looking, though the UV Reveal itself is more functional than flashy.

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 PowerDetect UV Reveal Robot...
4.1

Smart features are broad, including app control, room cleaning, schedules, voice assistants, and stain-aware automation, but the app and map editing are not as polished as the best rivals.

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 PowerDetect UV Reveal Robot...
3.6

The corner air jet can help push debris into the cleaning path, but it is not universally successful and can sometimes scatter mess instead.

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 PowerDetect UV Reveal Robot...
4.3

Mixed-floor and rug handling is strong overall: rugs often look refreshed, and the robot transitions between vacuuming and mopping better than many combo bots.

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 PowerDetect UV Reveal Robot...
4.4

Setup is generally straightforward, with easy dock assembly, app onboarding, and quick first maps, although full initial setup can still take around an hour.

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 PowerDetect UV Reveal Robot...
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 PowerDetect UV Reveal Robot...
4.4

Battery life consistently tracks close to Shark's three-hour claim, and the robot reliably returns to recharge or service itself when needed.

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 PowerDetect UV Reveal Robot...
4.5

The bagless dock is a standout convenience, avoiding disposable bags and making debris removal simple, though owners still need to watch bin fullness.

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 PowerDetect UV Reveal Robot...
No score yet
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 PowerDetect UV Reveal Robot...
3.2

Carpet performance is acceptable to good on everyday carpeting, but thicker or longer-pile carpet exposes weaker pickup, especially with fine debris like kitty litter.

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 PowerDetect UV Reveal Robot...
No score yet
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 PowerDetect UV Reveal Robot...
No score yet
Product 2: Roomba Combo j9+ Robot Vacuum...
3.6

No summary yet.

Comparative performance
Product 1: Shark PowerDetect UV Reveal Robot...
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 PowerDetect UV Reveal Robot...
No score yet
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 PowerDetect UV Reveal Robot...
4.8

Corner cleaning looks better than average thanks to the side brush and edge reach, with at least one reviewer seeing it grab debris from very tight corners.

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 PowerDetect UV Reveal Robot...
No score yet
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.

Debris illumination
Product 1: Shark PowerDetect UV Reveal Robot...
4.6

The UV system is the product's defining trick and a genuinely useful one on hard floors, making hidden stains and dirty spots easier to detect and target.

Product 2: Roomba Combo j9+ Robot Vacuum...
No score yet
Docking and Auto-Empty Reliability (Robot)
Product 1: Shark PowerDetect UV Reveal Robot...
4.4

The dock is one of the vacuum's strongest assets, handling self-emptying, mop washing, drying, and re-prep with little intervention and generally dependable behavior.

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 PowerDetect UV Reveal Robot...
3.7

Dock-related noise is mixed: auto-emptying and pad washing are loud enough to notice, while pad drying is usually described as a softer background hum.

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 PowerDetect UV Reveal Robot...
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 PowerDetect UV Reveal Robot...
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 PowerDetect UV Reveal Robot...
4.4

Edge cleaning on hard floors is a strength, with reviewers noting good wall, cabinet, and room-edge coverage during mopping.

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.

Filter-change indicator
Product 1: Shark PowerDetect UV Reveal Robot...
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 PowerDetect UV Reveal Robot...
4.3

Dust containment is a plus thanks to the sealed, anti-allergen bagless base, although this benefit is described more as a feature claim than a heavily tested differentiator.

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 Pickup — Carpets
Product 1: Shark PowerDetect UV Reveal Robot...
No score yet
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 PowerDetect UV Reveal Robot...
No score yet
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 PowerDetect UV Reveal Robot...
No score yet
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 PowerDetect UV Reveal Robot...
No score yet
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 PowerDetect UV Reveal Robot...
No score yet
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 PowerDetect UV Reveal Robot...
4.4

Compared with competing robot mops, the UV-guided stain targeting and deliberate re-scrubbing feel more distinctive and more useful than most novelty features.

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 PowerDetect UV Reveal Robot...
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 PowerDetect UV Reveal Robot...
4.2

Maintenance looks manageable, with rinseable filters and largely self-servicing dock routines, but owners still need to empty tanks and keep an eye on debris capacity.

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 PowerDetect UV Reveal Robot...
3.5

Mapping is usually fast and reasonably accurate, but one-floor-only maps, finicky room edits, and occasional routing glitches keep navigation from feeling fully premium.

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 PowerDetect UV Reveal Robot...
4.9

The mop lifting and detach-reattach system is widely praised because it avoids dragging wet pads over carpet and makes mixed-floor cleaning far more practical.

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 PowerDetect UV Reveal Robot...
4.6

Mopping is the star of the show, with repeated praise for stain removal, return-to-scrub behavior, and floors that often look close to hand-mopped.

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 PowerDetect UV Reveal Robot...
2.8

Running noise from the robot itself trends on the loud side, with at least one reviewer calling it rattly even at medium power.

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 PowerDetect UV Reveal Robot...
4.1

Obstacle avoidance is above average and often strong around furniture, cables, shoes, and thresholds, though it is not flawless.

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 PowerDetect UV Reveal Robot...
4.1

Shark's deodorizer and hot-dry dock features help with odor management and mildew prevention, adding convenience for homes with frequent mopping.

Product 2: Roomba Combo j9+ Robot Vacuum...
No score yet
Ongoing ownership costs (bags, filters, batteries)
Product 1: Shark PowerDetect UV Reveal Robot...
4.7

Recurring ownership costs are lower than many premium rivals because the dock is bagless, though filters and normal maintenance still remain.

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 opinion
Product 1: Shark PowerDetect UV Reveal Robot...
4.7

Overall sentiment is strongly positive: most reviewers came away impressed, especially by hard-floor cleaning and dock automation.

Product 2: Roomba Combo j9+ Robot Vacuum...
No score yet
Pet-Ready Features
Product 1: Shark PowerDetect UV Reveal Robot...
4.5

Pet households are a good fit because the robot handles drool, food areas, tracked-in debris, and a lot of pet hair well, even if some carpet hair can remain.

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 PowerDetect UV Reveal Robot...
3.5

Value is the biggest tension point: several reviewers think the performance helps justify the price, but around $1,300 is still a serious ask.

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 PowerDetect UV Reveal Robot...
4.5

Privacy handling is a relative plus because Shark says image processing stays on-device and the camera is not exposed as a security feature.

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 PowerDetect UV Reveal Robot...
No score yet
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.

Streaking / Residue
Product 1: Shark PowerDetect UV Reveal Robot...
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 PowerDetect UV Reveal Robot...
4.3

NeverStuck-style lifting helps the robot escape thresholds and tricky furniture better than average, reducing rescues even when obstacles do slow it briefly.

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 PowerDetect UV Reveal Robot...
No score yet
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 PowerDetect UV Reveal Robot...
No score yet
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 PowerDetect UV Reveal Robot...
4.5

Its roughly 3-inch height lets it reach under some furniture that bulkier robot vacuums can miss.

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 PowerDetect UV Reveal Robot...
4.4

The water system is thoughtfully designed, with comfortable tank handling and enough capacity for multiple cleanings before it needs attention.

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.