Roborock Qrevo Slim review: a 3.2-inch robot that cleans under the couch

Roborock Qrevo Slim at a glance

Design: what “Slim” really means

The Qrevo Slim’s defining feature is its height: just 3.2 inches. Most LiDAR robots stand around 3.7 to 3.9 inches tall because of the spinning sensor turret on top.

Roborock replaces that turret with StarSight, a navigation system that combines solid-state LiDAR, 3D Time-of-Flight sensors, a front RGB camera and infrared sensing, all built into the body.

That makes a real difference in practice. TechRadar and Trusted Reviews both found the lower height useful, and one Reddit owner reported it cleaned under kitchen cabinets that their old Roborock S7 couldn’t reach.

“Slim” only refers to height, though. The robot is still about 13.8 inches across, and the standard dock measures roughly 13.4 inches wide, 19.2 inches deep and 20.5 inches tall. If space is tight, measure before you buy.

Tip: measure before you buy. Run a tape measure under your couch, bed and kitchen toe kicks. If the gap is a bit more than 3.2 inches, the Slim should fit, while most turret robots won’t. Don’t forget to check the spot where the 13.4 x 19.2-inch dock will go, too.

Underneath, two counter-rotating rubber rollers pick up debris and resist hair wraps. A FlexiArm side brush swings out to sweep edges and corners, and one of the two spinning mop pads extends to clean along baseboards.

When it detects carpet, the mop pads lift about 0.4 inches, so it can vacuum carpet and mop hard floors in the same run. That lift may not be enough for every thick, high-pile rug.

The robot is slim, but the dock is not. Plan for about 13.4 x 19.2 inches of floor space.

Navigation and obstacle avoidance

Navigation is one of the Slim’s biggest strengths, though it isn’t perfectly consistent.

What the lab tests found

Vacuum Wars reported that it mapped the test floor plan in about five minutes and finished its cleaning run faster than average. After five obstacle tests, it ranked third overall, ahead of pricier Roborock flagships like the Qrevo Curv and S8 MaxV.

Trusted Reviews found navigation excellent. The robot slowed down near solid objects instead of bumping into them, avoided cables and fake pet waste, and slipped under kitchen cabinets.

TechRadar was impressed by how it handled door thresholds and a thick living room rug that had defeated other robots. It got briefly stuck on a raised threshold a few times, but backed up and tried again successfully.

What owners report

One Reddit owner with a child and a dog said their old S7 regularly got trapped by toys, utensils and other floor clutter. The Slim avoided most of it, handled wires in their tests and even recognized their dog, triggering a pet alert in the app. They scored their informal obstacle test three out of four.

It isn’t foolproof. Another owner said their Slim tangled itself in an electrical cord at first. Raising the obstacle-avoidance sensitivity helped, but small toys with thin tails could still cause trouble. It also pushed pet bowls around until they set up a no-go zone.

Occasional hiccups

TechRadar saw it get lost near its own dock once and fail to return. The Reddit owner had a similar first run, with the robot wandering the house before finding its way back and bumping into the dock. That stopped on later runs.

It can also be overly cautious. Some owners say it skips the gaps between dining chair legs even when there seems to be room, and access under beds with hanging bed skirts can be hit or miss.

Bottom line: navigation is excellent overall, but a quick pick-up of cords and small toys before a run still pays off.

5 ways to help it navigate better

1. Watch the first mapping run

   Owners and TechRadar saw it wander or bump the dock early on. It usually settles down once the map is built.

2. Raise obstacle-avoidance sensitivity

   One owner’s Slim caught an electrical cord until they turned the sensitivity up in the app.

3. Add no-go zones around pet bowls

   Otherwise it may push food and water bowls across the floor.

4. Pick up thin cords and toy strings

   Small toys with thin tails can still trip it up, even on higher sensitivity.

5. Tuck in bed skirts and push in chairs

   Hanging bed skirts and tight chair legs can make it skip areas it could otherwise reach.

Solid-state 3D sensing and an RGB camera replace the usual LiDAR turret.

Vacuuming performance

All three professional reviews found the Qrevo Slim a strong vacuum on both hard floors and carpet. Suction is rated at 11,000 Pa, but the tests show real-world pickup matters more than the spec sheet.

Vacuum Wars reported excellent pickup across its hard floor and carpet tests. It removed about 80% of flattened pet hair from carpet, versus a 78% average for LiDAR robots, resisted tangles from 7-inch strands of hair and beat the average in its crevice test.

Deep cleaning was more middle-of-the-pack. Vacuum Wars rated its removal of embedded dirt as average, though still better than some pricier Roborock models. In other words, it excels at everyday cleaning rather than topping every deep-carpet test.

Interestingly, Vacuum Wars also measured lower-than-average suction and airflow on the bench, despite the excellent pickup. It’s a good reminder that suction numbers don’t tell the whole story.

Trusted Reviews saw similar results. After two passes over carpet sprinkled with flour, very little was left, and the highest suction setting cleared the rest. On hard floors, it picked up the flour in one pass and collected human hair without tangling.

TechRadar found the suction setting matters. Quiet mode is fine for light dust but struggles with bigger debris. Balanced is better, while Turbo and Max are the most thorough, with Turbo the best mix of cleaning and noise.

The main weakness: the spinning side brush can flick debris away from the robot, leaving some behind. Even Max+ mode didn’t fully solve it. TechRadar recommends cleaning whole rooms twice on Turbo or Max for the most reliable results.

Tip: set two passes for deep cleans. For a weekly deep clean, choose Turbo or Max with two passes per room. It helps pick up debris the side brush flicks aside.

The 7.4 oz onboard dustbin is small for a premium robot. Auto-emptying makes it manageable, but homes with heavy shedding may need to set the dock to empty more often.

Pet hair and everyday mess

The Qrevo Slim looks like a good fit for most pet homes. The rubber rollers resist tangles, suction handles everyday hair well, and the camera can recognize some pets and the things they leave behind.

The Reddit owner with a dog and a heavily shedding wool rug saw a big improvement over their S7. After the Slim finished, a follow-up pass with their Dyson handheld picked up very little extra dirt or hair from the rug. That’s one household, not a lab test, but it’s encouraging.

The app adds pet-focused extras like pet checkups and live camera viewing. Just keep the small bin in mind with a lot of fur, and expect to manage thin cords, toy strings and food bowls.

Tip for pet owners: In the app, set the dock to auto-empty after every run. The 7.4 oz onboard bin fills up fast with heavy shedding.

Mopping performance

Mopping is another strength. Two spinning microfiber pads rotate at about 200 rpm and press down on the floor. You can adjust the water flow, pick different cleaning routes and choose one or two passes.

Vacuum Wars scored it 110 points in its dried-stain test, which is above average and on par with other Qrevo models.

Trusted Reviews found it removed coffee and dried red wine in one pass. Dried mud took two passes. Ketchup was the hardest: the standard vacuum-and-mop mode left a lot behind, but switching to mop-only with Deep Clean+ and maximum water flow removed most of it, and one more pass finished the job.

TechRadar saw it clear dried hot sauce in two passes, with some residue after the first. Expect stubborn stains to need more than one run.

Tip: tackle tough stains in mop-only mode. Switch to mop-only with Deep Clean+ and maximum water flow, then run a second pass. That’s what finally cleared ketchup in Trusted Reviews’ test.

The Reddit owner ran the Slim and their old S7 over the same patch of hardwood. After the Slim’s run, the dock’s dirty water was noticeably darker, which suggests the spinning pads pulled up extra grime. It also faded marker scribbles left by their child, though a few runs may be needed to remove them completely.

The extending FlexiArm mop pad is handy along walls and in doorways. There’s no automatic detergent dispenser, though, which some rivals at this price include.

One caution: the side brush keeps spinning while mopping, so TechRadar advises against using it on fresh wet spills, which it can spread. It’s best for dried-on messes.

The Multifunction Dock 3.0

The dock is where much of the convenience comes from. It empties the robot’s bin into a disposable bag, washes the mop pads with hot water, dries them with heated air, refills the robot’s water tank and collects the dirty water. A sensor triggers extra mop washing when the water shows the pads are still dirty.

The dust bag holds roughly 3 quarts, and Roborock suggests swapping it about every seven weeks, depending on your home and how often you clean. The standard dock has separate clean and dirty water tanks of about a gallon each that you fill and empty by hand. A version with direct plumbing for refill and drainage is also available.

Vacuum Wars especially liked the dock’s self-cleaning features, including its dirty-water sensor. Trusted Reviews found the dock base still looked clean after several weeks, and the base tray can be removed for a scrub.

For the Reddit owner, the dock was the biggest upgrade over the S7. With emptying, washing, drying and water handled automatically, they rarely had to touch the robot. They could schedule a kitchen and dining room clean, let the robot return to the dock to wash its pads, and then carry on with the rest of the house on its own.

Tip: split big jobs into two stages. Schedule high-traffic rooms like the kitchen first. The robot can return to wash its pads before moving on, so dirty pads don’t drag grime into the rest of the house.

Maintenance: what you still have to do

1. 01Regularly: water tanksRefill the clean tank and empty the dirty one, unless you have the plumbed dock.
2. 02About every 7 weeks: dust bagSwap the bag when the app asks. Busy homes and pets may need it sooner.
3. 03Now and then: bin, filter and sensorsClean the onboard bin and filter, and wipe the front sensors and camera, since navigation depends on them.
4. 04Now and then: dock baseThe base tray lifts out if it needs a scrub.
5. 05As needed: wear partsReplace mop pads, brushes and the filter as they wear out.

App and smart features

Every review praised the Roborock app. It supports room mapping, multi-level maps, virtual walls, no-go zones, detailed schedules, room-by-room cleaning, adjustable suction and water flow, and different cleaning routes. You can also build routines, such as a quick kitchen clean after dinner.

Vacuum Wars highlighted its strong ratings and depth of control. TechRadar liked SmartPlan, which adapts cleaning to your preferences, and being able to launch saved routines from the home screen. Trusted Reviews singled out the automatic re-mopping feature.

There’s a built-in voice assistant that answers to “Hello Rocky,” plus Amazon Alexa and Google Assistant support. Live camera viewing and pet checkups are there if you want them, though not everyone will be comfortable with a camera robot roaming the house.

All those settings can feel like a lot. The good news is that once setup is done, you can stick to simple room commands or saved routines.

Tip: start simple. Set up rooms, a couple of no-go zones and one daily schedule first. Add routines like an after-dinner kitchen clean once you know how your home cleans.

Battery life and noise

Battery life is rated at up to 180 minutes on a low setting. Vacuum Wars measured about 1,244 square feet of coverage per charge and an efficient 8.5 square feet per minute, compared with an average of 7.3. Your results will depend on suction level, route and layout.

TechRadar measured about 60 dB in Quiet mode, 63 dB in Balanced, 65 dB in Turbo and up to 70 dB in Max+. The Reddit owner found it quieter than their S7 for everyday cleaning. The dock adds its own noise when emptying and washing, but a moderate setting keeps regular vacuuming fairly unobtrusive.

Tip: run it while you’re out. Use Turbo or Max on a schedule when nobody’s home, and keep Quiet or Balanced for touch-ups while you’re around.

Is the Roborock Qrevo Slim worth the money?

The Qrevo Slim launched at $1,399.99 in the U.S. TechRadar has reported discounts to around $999, and Reddit owners have discussed prices close to $900.

For that money, you get low-profile navigation, strong vacuuming, effective spinning-pad mopping, reliable obstacle recognition, an excellent app and a dock that handles nearly all routine upkeep. If low furniture is your main frustration, that slim body gives you something extra suction can’t.

At full price it’s a big spend, so we’d wait for a sale. If you also need to climb high thresholds, look at the Qrevo CurvX instead.

Tip: wait for a deal. The Slim has been reported at around $900 to $999 on sale, hundreds below its $1,399.99 launch price. Big sale events are a good time to buy.

Prices change often, so check the current price on Amazon before you buy.

Roborock Qrevo Slim specifications

From Roborock, the Amazon listing and published reviews.

Qrevo Slim vs Qrevo CurvX vs Qrevo 2 Pro

Here is how the Slim compares with Roborock’s other low-profile and value models.

Best Roborock Qrevo Slim alternatives

If you want more suction in a low body, the Roborock Qrevo CurvX is 3.1 inches tall with 22,000 Pa and a climbing chassis.

If height doesn’t matter, the Roborock Qrevo 2 Pro offers more suction for less.

How we researched and scored the Roborock Qrevo Slim

This review brings together independent testing from Vacuum Wars, TechRadar and Trusted Reviews, a detailed long-term owner report on Reddit and Roborock’s published specifications. We compared their results with other Roborock models and with each other, and called out where they disagreed.

We scored four areas, each with its own subscore.

• Vacuuming (8.0): pickup on hard floors, rugs and carpet, including pet hair and embedded dirt.
• Mopping (8.2): everyday dirt, dried stains and edge coverage.
• Navigation (8.6): mapping, reach under furniture and obstacle avoidance.
• Dock and upkeep (8.4): what the dock does for you, and what is left.

The overall score is an editorial rating.