iRobot Roomba j9+ Self-Emptying Robot Vacuum vs Roborock Q Revo S
Specs, pros, cons and who each one actually suits — a Canadian buying comparison built from our stored research.
Quick verdict
Neither one wins outright — the right pick depends on your priorities. Here's the split, based on our stored research.
These two solve different halves of the same problem. The Roomba j9+ is the stronger vacuum-only robot, with obstacle avoidance built to dodge cords and pet waste. The Roborock Q Revo S is the more complete machine: it mops, washes and dries its own pads, and refills itself. If your floors are mostly hard surface and you want the robot to wash them, the Q Revo S is the one to buy. If you mainly need carpet vacuuming with the fewest possible rescues, buy the j9+.
- Pet owners needing hair-tangle resistance
- Users wanting a hands-free vacuuming experience
- Homes with a mix of carpet and hard flooring
Less ideal if: Users specifically looking for a robot mop; Budget-conscious shoppers
Read the full iRobot Roomba j9+ Self-Emptying Robot Vacuum research →- Hands-off mopping with minimal maintenance
- Hard-floor-heavy homes
- Buyers who value app polish and brand track record
Less ideal if: Homes dominated by thick carpet; Tight storage for the dock
Read the full Roborock Q Revo S research →Built from publicly available specifications and owner-reported feedback — not our own lab testing.
iRobot Roomba j9+ Self-Emptying Robot Vacuum and Roborock Q Revo S both appear on the same Canadian shortlist, so the decision usually comes down to fit rather than one being plainly better. The decision usually comes down to one question: do you need the robot to mop, or do you need it to never get stuck? This page walks through both products on the things that actually change the buying decision: navigation and mapping, obstacle avoidance, suction and cleaning power and mopping. Everything below is drawn from the specifications, advantages, limitations and buyer-fit notes we hold on each product. We research and compare on paper — we do not claim to have tested either unit in a lab, and we do not invent scores.
These two solve different halves of the same problem. The Roomba j9+ is the stronger vacuum-only robot, with obstacle avoidance built to dodge cords and pet waste. The Roborock Q Revo S is the more complete machine: it mops, washes and dries its own pads, and refills itself. If your floors are mostly hard surface and you want the robot to wash them, the Q Revo S is the one to buy. If you mainly need carpet vacuuming with the fewest possible rescues, buy the j9+.
Where to buy these two
Affiliate disclosure. We may earn a commission when you purchase through links on this page, at no additional cost to you. Should I Buy It? is a participant in the Amazon.ca Associates Program. As an Amazon Associate I earn from qualifying purchases. Prices, availability and Canadian pricing are not guaranteed and can change — always confirm details with the retailer before purchasing. Shopping recommendations are intended for Canadian buyers.
Video: iRobot Roomba j9+ Self-Emptying Robot Vacuum vs Roborock Q Revo S
Advanced obstacle avoidance technology Self-emptying base reduces maintenance Best for: Pet owners needing hair-tangle resistance.
Key Specifications: iRobot Roomba j9+ Self-Emptying Robot Vacuum vs Roborock Q Revo S
| Navigation | PrecisionVision Navigation | LiDAR |
| Self-Emptying | Yes, Clean Base Auto-Empty Dock | — |
| Brush Type | Dual Multi-Surface Rubber Brushes | — |
| Suction | 100% stronger power-lifting suction (vs Roomba i Series) | — |
| Obstacle avoidance | PrecisionVision Navigation avoids shoes, socks, cords and pet waste | Reactive Tech obstacle avoidance |
| Suction power | — | 7,000 Pa |
| Battery life | — | 180 min |
| Mopping | — | Dual spinning pads |
| Auto empty | — | Yes (dock, auto-wash + dry) |
Pros
- Advanced obstacle avoidance technology
- Self-emptying base reduces maintenance
- Dirt Detective feature prioritizes high-traffic areas
- Dock washes, dries and refills the mop automatically
- Mature, polished companion app
- Reliable LiDAR mapping from an established brand
- Strong all-floor suction
Cons
- Does not include mopping functionality (vacuum-only)
- Requires dedicated space for the Clean Base docking station
- Obstacle avoidance is more basic than camera-based rivals
- Dock is bulky — needs dedicated space
- Mop lift height is limited on thick carpets
Common Complaints
- None noted.
- Dock takes up significant floor space
- Occasionally misses low obstacles like phone cables
- Self-wash cycle can be noisy at night
At a glance
| Attribute | iRobot Roomba j9+ Self-Emptying Robot Vacuum | Roborock Q Revo S |
|---|---|---|
| Navigation | PrecisionVision Navigation | LiDAR |
| Self-Emptying | Yes, Clean Base Auto-Empty Dock | — |
| Brush Type | Dual Multi-Surface Rubber Brushes | — |
| Suction | 100% stronger power-lifting suction (vs Roomba i Series) | — |
| Obstacle avoidance | PrecisionVision Navigation avoids shoes, socks, cords and pet waste | Reactive Tech obstacle avoidance |
| Suction power | — | 7,000 Pa |
| Battery life | — | 180 min |
| Mopping | — | Dual spinning pads |
| Auto empty | — | Yes (dock, auto-wash + dry) |
The two products in detail
AiRobot Roomba j9+ Self-Emptying Robot Vacuum
iRobot · J955020What it does well
- Advanced obstacle avoidance technology.
- Self-emptying base reduces maintenance.
- Dirt Detective feature prioritizes high-traffic areas.
Where it falls short
- Does not include mopping functionality (vacuum-only).
- Requires dedicated space for the Clean Base docking station.
Specifications that matter
- Navigation: PrecisionVision Navigation.
- Self-Emptying: Yes, Clean Base Auto-Empty Dock.
- Brush Type: Dual Multi-Surface Rubber Brushes.
- Suction: 100% stronger power-lifting suction (vs Roomba i Series).
- Obstacle avoidance: PrecisionVision Navigation avoids shoes, socks, cords and pet waste.
Ownership and upkeep
- Requires dedicated space for the Clean Base docking station.
Best suited to
- Pet owners needing hair-tangle resistance.
- Users wanting a hands-free vacuuming experience.
- Homes with a mix of carpet and hard flooring.
Consider skipping it if
- Users specifically looking for a robot mop.
- Budget-conscious shoppers.
- Homes with extremely tight furniture clearances.
BRoborock Q Revo S
Roborock · Q Revo SWhat it does well
- Dock washes, dries and refills the mop automatically.
- Mature, polished companion app.
- Reliable LiDAR mapping from an established brand.
- Strong all-floor suction.
Where it falls short
- Obstacle avoidance is more basic than camera-based rivals.
- Dock is bulky — needs dedicated space.
- Mop lift height is limited on thick carpets.
- Dock takes up significant floor space.
- Occasionally misses low obstacles like phone cables.
- Self-wash cycle can be noisy at night.
Specifications that matter
- Suction power: 7,000 Pa.
- Battery life: 180 min.
- Mopping: Dual spinning pads.
- Auto empty: Yes (dock, auto-wash + dry).
- Navigation: LiDAR.
- Obstacle avoidance: Reactive Tech obstacle avoidance.
Ownership and upkeep
- Dock is bulky — needs dedicated space.
- Dock takes up significant floor space.
Best suited to
- Hands-off mopping with minimal maintenance.
- Hard-floor-heavy homes.
- Buyers who value app polish and brand track record.
Consider skipping it if
- Homes dominated by thick carpet.
- Tight storage for the dock.
- Budget buyers.
Head to head
Each dimension below is drawn from the stored specifications and documented trade-offs for both products. Where no directly comparable figure exists, we say so instead of naming a winner.
Navigation and mapping
Depends on the buyerNavigation: PrecisionVision Navigation
Navigation: LiDAR
Mapping decides how efficiently the robot covers a floor and whether you can send it to one room. Neither record states a directly comparable figure, so this is a depends-on-your-setup call.
Obstacle avoidance
Depends on the buyerObstacle avoidance: PrecisionVision Navigation avoids shoes, socks, cords and pet waste
Obstacle avoidance: Reactive Tech obstacle avoidance
Better avoidance means fewer rescues, but no current system clears every cable or sock. Neither record states a directly comparable figure, so this is a depends-on-your-setup call.
Suction and cleaning power
Depends on the buyerSuction: 100% stronger power-lifting suction (vs Roomba i Series)
Suction power: 7,000 Pa
Higher rated suction helps on carpet, though brush design and airflow matter as much as the number. Neither record states a directly comparable figure, so this is a depends-on-your-setup call.
Mopping
Depends on the buyerNot itemized in our stored record.
Mopping: Dual spinning pads
A mopping system adds hands-free floor washing, but it is no substitute for a dedicated hard-floor cleaner on sticky messes. Neither record states a directly comparable figure, so this is a depends-on-your-setup call.
Dock automation
Depends on the buyerSelf-Emptying: Yes, Clean Base Auto-Empty Dock
Auto empty: Yes (dock, auto-wash + dry)
The more the dock handles, the less you touch the robot, and the more floor space the dock occupies. Neither record states a directly comparable figure, so this is a depends-on-your-setup call.
Carpet handling
Depends on the buyerSuction: 100% stronger power-lifting suction (vs Roomba i Series)
Not itemized in our stored record.
Carpet performance depends on both suction and how well the robot lifts its mop out of the pile. Neither record states a directly comparable figure, so this is a depends-on-your-setup call.
Runtime and battery
Depends on the buyerNot itemized in our stored record.
Battery life: 180 min
Longer runtime matters most in larger homes; small apartments rarely exhaust either battery. Neither record states a directly comparable figure, so this is a depends-on-your-setup call.
Maintenance and consumables
Depends on the buyerSelf-Emptying: Yes, Clean Base Auto-Empty Dock
Not itemized in our stored record.
Every self-emptying or self-washing dock still needs bags, filters, or periodic deep cleaning. Neither record states a directly comparable figure, so this is a depends-on-your-setup call.
Who should buy which
Buy iRobot Roomba j9+ Self-Emptying Robot Vacuum if…
- You have pets and floor clutter, and getting stuck on a cable is the failure you care about most.
- Your home is mostly carpet, where a mop adds little.
- You want a self-emptying vacuum from a brand with a long Canadian service history.
Buy Roborock Q Revo S if…
- Most of your floors are hard surface and you want them mopped automatically.
- You want the dock to wash and dry the mop pads so you are not handling a wet cloth.
- You would rather have one machine do both jobs than store a vacuum and a mop.
Final verdict
Best overall for most buyers
The Roborock Q Revo S covers more of the weekly floor routine — vacuuming, mopping, dock washing and refilling — while the Roomba j9+ is the safer pick where floor clutter and pet accidents are the main risk.
Best value
We do not publish a live Canadian price for either robot, so value has to be judged at the retailer link on the day you buy. Feature-per-dollar favours the Q Revo S if mopping would otherwise mean buying and running a second device.
The compromise you accept
With the Q Revo S you accept more basic obstacle avoidance and a dock that needs real floor space. With the j9+ you accept that mopping is simply not part of the product.
When neither is right
If you want flagship-level obstacle avoidance and hands-free mopping in a single robot, neither of these is that machine — you are choosing which capability to give up.
Frequently asked questions
Does the Roomba j9+ mop floors?
No, the standard Roomba j9+ (J955020) is a dedicated vacuum. You would need the Roomba Combo j9+ for mopping capabilities.
Does it empty its own dustbin?
Yes, it comes with the Clean Base Auto-Empty Dock, which allows the robot to empty its bin automatically.
Can it avoid pet waste?
Yes, the PrecisionVision navigation system is designed to identify and avoid common obstacles, including pet waste.
Does the dock wash and dry the mop?
Yes, the dock auto-washes, dries, and refills the mop, and it also auto-empties debris.
How long is the battery life?
Up to 180 minutes.
How strong is the suction?
7,000 Pa.
How this page was built. Every claim above comes from our stored research on each product — manufacturer specifications, retailer listings and published reviews — not from hands-on testing. We do not publish performance scores, and we only show a winner where the records state a directly comparable figure.
Comparison body last rebuilt October 23, 2026.
Sources carried from both product records:
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Affiliate disclosure. We may earn a commission when you purchase through links on this page, at no additional cost to you. Should I Buy It? is a participant in the Amazon.ca Associates Program. As an Amazon Associate I earn from qualifying purchases. Prices, availability and Canadian pricing are not guaranteed and can change — always confirm details with the retailer before purchasing. Shopping recommendations are intended for Canadian buyers.