The Qrevo Curv hits harder on the vacuuming side with 18,500 Pa of suction, a hybrid rubber-and-bristle brush setup, and a 240-minute runtime that covers 4,305 sq ft in a single go. The S8 MaxV Ultra answers with a more polished dock experience, including automatic detergent dispensing and hotter 140 °F mop drying, plus a vibrating main pad paired with a rotating edge mop for corners. Go with the Qrevo Curv for deep carpet cleaning, scrubbing power from its dual spinning pads, and big-floorplan endurance; go with the S8 MaxV Ultra if dock polish and edge detail matter more than sheer suction.
Same brand, same tied overall rating, two very different ideas about what a premium robot should prioritize. The Qrevo Curv leans into cleaning muscle and endurance: nearly double the suction, a bigger battery, and dual spinning mop pads that press down with 12 N of force. The S8 MaxV Ultra spends its energy on the dock and the details, adding automatic detergent dispensing, hotter air drying, and a rotating edge mop that reaches along baseboards. And there's a large price gap between them, which changes the math considerably for most buyers.
Roborock Qrevo Curv
out of 10Roborock S8 MaxV Ultra
Both land at 8.1 overall, so this comes down to what you value. The Qrevo Curv leads on cleaning at 8.5 versus 8.1, thanks to its much stronger suction and larger dustbin. The S8 MaxV Ultra takes navigation at 7.9 versus 7.5 and features at 8.6 versus 7.9, where its dock extras and edge mop add up. Neither one runs away with this. They're close enough that your floor type and budget decide it.
Suction is the loudest gap: 18,500 Pa on the Qrevo Curv against 10,000 Pa on the S8 MaxV Ultra, backed by a dual rubber-and-bristle brush versus dual rubber. Mopping takes two different paths. The Qrevo Curv uses dual spinning pads at 200 RPM with 12 N of downward pressure and 30 moisture settings, which is active scrubbing. The S8 MaxV Ultra uses a vibrating pad running at 4,000 vibrations per minute plus a small rotating edge pad for baseboards, with 4 moisture levels. Endurance also splits them: 240 minutes and 4,305 sq ft per run versus 180 minutes and 3,229 sq ft. Finally, only the S8 MaxV Ultra adds detergent automatically when it washes its pads.
At 18,500 Pa versus 10,000 Pa, the Qrevo Curv pulls noticeably harder, and its dual brush combining rubber and bristle agitates carpet fibers more aggressively than the all-rubber pair on the S8 MaxV Ultra. Its larger onboard dustbin also means fewer trips back to the dock on big cleaning runs.
The Qrevo Curv's dual spinning pads at 200 RPM with 12 N of pressure and 30 moisture levels do real scrubbing on dried spills, and they wash at a hotter 167 °F. The S8 MaxV Ultra counters with a vibrating pad at 4,000 vibrations per minute, a small rotating edge pad for baseboards, a slightly higher 20 mm mop lift over carpet, and automatic detergent in the wash cycle, so it wins on polish rather than scrubbing force.
Pet homes benefit from the Qrevo Curv's 18,500 Pa pulling embedded hair out of rugs and its slightly larger 2.7 L dust bag between changes. The bristle-and-rubber brush combo helps lift fine undercoat that rubber alone leaves behind.
Both run LiDAR mapping paired with a camera, AI recognition, and 3D structured light, so obstacle dodging is comparable in practice. The Qrevo Curv adds a taller 40 mm obstacle clearance, letting it climb over thresholds and thick rug edges that stop the S8 MaxV Ultra's 20 mm limit.
The S8 MaxV Ultra's dock adds detergent automatically during mop washing, so pads come out cleaner, and it dries them at 140 °F versus 113 °F, plus it holds more dirty water. The Qrevo Curv washes at a hotter 167 °F and carries a slightly bigger dust bag, so each dock has its own advantage.
The Qrevo Curv runs 240 minutes on a 6,400 mAh battery and covers 4,305 sq ft in one outing, against 180 minutes and 3,229 sq ft for the S8 MaxV Ultra. On a large single-floor home, that's the difference between finishing in one pass and stopping to recharge.
This one's a wash. Both support built-in voice commands plus Amazon, Google, and Apple, and both handle no-go zones, multi-level maps, smart carpet cleaning, and AI obstacle avoidance.
| Feature | Roborock Qrevo Curv | Roborock S8 MaxV Ultra |
|---|---|---|
| Suction Power | 18,500 Pa | 10,000 Pa |
| Main Brush Type | Dual (rubber & bristle) | Dual (rubber) |
| Mop Type | Dual spinning mop pads | Vibrating mop pad + rotating edge mop |
| Auto Detergent Dispensing | No | Yes |
| Battery Life | 6,400 mAh | 5,200 mAh |
| Sq Ft in One Run | 4,305 sq ft | 3,229 sq ft |
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Both are capable premium Roborocks, and the tie in overall rating is honest. Carpet-heavy homes, pet owners, and large floor plans are better served by the Qrevo Curv's suction and runtime. Buyers focused on dock refinement and edge mopping detail on hard floors will prefer the S8 MaxV Ultra.
