Quick Answer: The Roborock Qrevo S is a lab-tested case of a mid-tier robot outperforming its own price bracket — and undermining itself in the same test. Vacuum Wars ranked it #8 on its Top 20 list, calling it “by far the cheapest robot vacuum in the top 10,” after finding its carpet deep-cleaning matched the pricier Qrevo MaxV and its combined performance score edged out both the MaxV and the Qrevo Master. The catch: it ties the original Qrevo for the worst obstacle-avoidance score Vacuum Wars has measured, because it navigates with 3D structured light only — no front camera to identify what’s in its path. Clean floors, no pets with accidents, and this is one of the best cleaning-per-dollar robots on the market. Cluttered floors or a dog, and the calculus flips fast.
Most Roborock reviews on this site are about the dock — the wash cycles, the detergent dosing, the self-cleaning base. The Qrevo S flips that script: its story is entirely about what the robot itself can and cannot see.
Roborock Qrevo S by the numbers
- #8 on Vacuum Wars’ Top 20 list — with the site’s own framing that it’s “by far the cheapest robot vacuum in the top 10,” a rare case of a budget-tier model cracking a premium ranking.
- Carpet deep-cleaning matched the Qrevo MaxV and debris pickup “matched or exceeded” pricier Qrevo models, per Vacuum Wars’ lab testing — despite the Qrevo S’s lower list price.
- Combined performance score slightly ahead of both the Qrevo MaxV and Qrevo Master when Vacuum Wars added up raw suction power and practical cleaning results.
- Obstacle avoidance tied the original Qrevo for the worst score Vacuum Wars has recorded — the direct result of relying on 3D structured light with no front-mounted camera.
- Mopping stain-removal scored 116 out of 176 — above the site average and better than the Tineco Floor One S3 in the same dried-stain test.
- ~1,268 sq ft covered per charge on a 180-minute rated battery, with roughly a 5-minute initial mapping run using top-mounted LiDAR.
The trade-off: raw cleaning power vs. what it can actually see
Strip out the marketing spec sheet and the Qrevo S is a genuinely strong cleaner. Vacuum Wars’ lab testing found its carpet deep-cleaning result matched the Qrevo MaxV — a model that costs more and advertises a more premium position in Roborock’s lineup — and its crevice pickup came in “well above average.” When the site combined raw suction performance with practical cleaning results, the Qrevo S edged out both the Qrevo MaxV and the Qrevo Master. That’s an unusual result: a mid-tier model out-cleaning two pricier siblings in the same test suite.
Roborock Qrevo S
- 7,000Pa advertised suction; carpet deep-cleaning matched the pricier Qrevo MaxV per Vacuum Wars.
- Dual spinning mop pads with auto-lift on carpet; dried-stain score of 116/176, above the site average.
- 3D structured light navigation only — no front camera, so obstacle recognition is the weak point.
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But that same test suite is exactly where the Qrevo S’s other number comes from. Vacuum Wars measured its obstacle avoidance as tied with the original, first-generation Qrevo — the worst score the site has recorded in that category. The reason is architectural, not a fluke: the Qrevo Master and MaxV pair a front-mounted camera with 3D structured light, letting them identify objects before deciding how to react. The Qrevo S has only the structured-light sensor, so it can detect that something is in front of it without knowing what that something is. That’s a materially different capability from the raw cleaning tests above, and it’s the one that decides whether this robot belongs in your home.
Mopping: solid pad performance, fewer frills than the flagship docks
The Qrevo S mops with dual spinning pads and electronic water dispensing, and its dried-on stain test score of 116 out of 176 beat the site average and outperformed the Tineco Floor One S3 in the same benchmark — a genuinely good result for a robot priced below Roborock’s flagship tier. Pads auto-lift when the robot detects carpet, so mopping stays confined to hard flooring rather than soaking rugs.
Where it gives ground is the dock. Per Vacuum Wars, the Qrevo S dock auto-empties the bin, washes the mop pads, and refills the water tank, but it skips two features found on the Qrevo Master: a self-cleaning dock base and a water-cleanliness sensor. There’s also no hot-water wash cycle here. If dock-side hygiene features matter as much as mopping performance to you, our best robot mop guide covers the fuller field, including models with heated pad washing.
The disqualifier: floors it can’t be trusted on
Every robot vacuum has a scenario that should rule it out regardless of price, and for the Qrevo S it’s clutter. Because it can only sense obstacles, not identify them, cords, shoes, toys, and pet waste all register the same way to its sensors — as “something there,” not “something to avoid touching.” Vacuum Wars’ testing puts a number on how bad that gets: tied for the worst obstacle score the site has measured, worse than the original 2024 Qrevo it replaced in the lineup.
Households with a dog prone to accidents, or floors that regularly have cords and small clutter underfoot, should look at camera-equipped models instead — the Qrevo Master or the picks in our best robot vacuum with obstacle avoidance ranking. If your floors stay genuinely clear day to day, the Qrevo S’s cleaning performance is worth more than the obstacle score suggests.
Specs at a glance
| Spec | Roborock Qrevo S |
|---|---|
| Suction (advertised) | 7,000Pa — carpet deep-cleaning matched Qrevo MaxV per Vacuum Wars lab testing |
| Obstacle sensing | 3D structured light only, no front camera — tied with original Qrevo for the worst score Vacuum Wars has tested |
| Mop system | Dual spinning pads with electronic water dispensing, auto-lift on carpet; dried-stain score 116/176 |
| Navigation | Top-mounted LiDAR, ~5-minute initial mapping run, ~1,268 sq ft coverage per charge |
| Dock | Auto-empty, pad washing, auto water refill — no self-cleaning base or water-cleanliness sensor (unlike Qrevo Master) |
| Dustbin | 330ml onboard, 2.7L disposable dock bag |
| Threshold crossing | 20mm |
| Battery | 180 minutes rated |
| Ranking | #8 on Vacuum Wars' Top 20 robot vacuum list |
| Price | $799.99 on Roborock's own US store · $1,299.99 cited by Vacuum Wars — shop around, the spread is real |
| Availability | First tracked on Amazon around May 2024 near $799.99 |
Specs and test results are drawn from Vacuum Wars’ published review and Roborock’s own product and support pages, current as of July 2026.
How it compares
- vs Roborock Qrevo Master — the Master adds a front camera for object recognition, an extending FlexiArm side brush, and a self-cleaning dock base. It’s the safer buy for pet homes and cluttered floors. The Qrevo S counters with cleaning performance Vacuum Wars measured as slightly ahead of the Master, for less money — if your floors stay clear.
- vs Roborock Qrevo Pro — the Pro is a hard-floor specialist at clearance pricing with a full-service dock (hot-water wash, auto detergent) but the same non-camera obstacle sensing limitation. Between the two, the Qrevo S has the stronger measured cleaning results; the Pro has the more complete dock.
- vs Roborock Qrevo Curv — the Curv is the deep-carpet and threshold-climbing star of the Qrevo family, at a higher price. Buy the Curv for demanding floor transitions; buy the Qrevo S for the best raw cleaning-per-dollar in the lineup.
- vs Roomba — see our Roomba vs Roborock breakdown for how iRobot’s lineup stacks up on obstacle avoidance, a category where Roomba historically leads.
Who should buy the Roborock Qrevo S
- Buy it if your floors stay genuinely clutter-free day to day and you want the best measured cleaning performance per dollar in Roborock’s Qrevo lineup.
- Buy it if you care more about deep-carpet and crevice cleaning than premium obstacle intelligence — Vacuum Wars’ numbers say this robot cleans like something twice its price.
- Skip it if you have a dog prone to accidents, kids who leave toys underfoot, or any home where cords regularly cross the floor — the lack of a front camera makes this the weakest obstacle avoidance Vacuum Wars has tested.
- Skip it if you specifically want a self-cleaning dock base or hot-water pad washing — step up to the Qrevo Master for those.
- Shop around before buying. The $799.99–$1,299.99 spread between Roborock’s own store and third-party listings is wide enough to change the value equation entirely.
The bottom line
The Roborock Qrevo S is proof that a mid-tier robot vacuum can out-clean its pricier siblings — Vacuum Wars measured its carpet performance matching the Qrevo MaxV and its combined score edging out both the MaxV and the Qrevo Master, landing it at #8 on the site’s Top 20 list. But the same testing that earned it that ranking also tied it with the original Qrevo for the worst obstacle avoidance score Vacuum Wars has recorded, a direct consequence of skipping the front camera its pricier siblings carry. For clean, uncluttered floors, this is one of the sharpest cleaning-per-dollar buys in Roborock’s catalog. For homes with pets, kids, or cable clutter, the missing camera is a real cost that no amount of suction fixes. Still comparing options? Start with our best Roborock ranking or the full field in best robot vacuum.