Roborock Qrevo CurvX
For most homes wanting a fully hands-off robot at a mid-range price, with strong carpet cleaning and long range.
Amazon $949.99$949.99
The Roborock Qrevo CurvX is the better robot vacuum overall, rated 4.1 to 3.4. The Roborock Qrevo CurvX leads on cleaning, navigation and mopping. The Roborock S8 Max Ultra wins on dock.
Prices were last checked November 9, 2026. Product prices and availability are accurate as of that date and are subject to change; the price and availability shown on Amazon or the retailer's site at the time of purchase apply. As an Amazon Associate we earn from qualifying purchases.
Roborock S8 Max Ultra
#102 in Self-cleaning dockFull review
For buyers who can plumb in the dock and want a hands-off mopping robot that never needs its water tanks touched.
Amazon $949.99$949.99
Which should you buy?
- Choose the Roborock Qrevo CurvX for cleaning (measured 92% of sand from carpet, 77.5% of pet hair, no hair tangled vs measured 72% of sand from carpet, 75% of pet hair, some hair tangled (0.6)), navigation (LiDAR + camera vs LiDAR + 3D light) and mopping (Dual spinning pads, lifts 10 mm, extends to edges vs Vibrating pad, lifts 20 mm, extends to edges).
- Choose the Roborock S8 Max Ultra for dock (Self-empties the bin, washes the mop, hot-water mop wash, hot-air mop drying, doses detergent, optional water hookup vs Self-empties the bin, washes the mop, hot-water mop wash, hot-air mop drying).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every self-cleaning dock robot vacuum; a clear win is highlighted. How we rank explains each one.
| Factor weight | Roborock Qrevo CurvX | Roborock S8 Max Ultra |
|---|---|---|
| Overall rating | 4.1/5 | 3.4/5 |
| Cleaning 30% | 82 measured 92% of sand from carpet, 77.5% of pet hair, no hair tangled | 18 measured 72% of sand from carpet, 75% of pet hair, some hair tangled (0.6) |
| Value 25% | 39 $950 | 39 $950 |
| Dock 20% | 85 Self-empties the bin, washes the mop, hot-water mop wash, hot-air mop drying | 100 Self-empties the bin, washes the mop, hot-water mop wash, hot-air mop drying, doses detergent, optional water hookup |
| Navigation 15% | 100 LiDAR + camera | 85 LiDAR + 3D light |
| Mopping 10% | 76 Dual spinning pads, lifts 10 mm, extends to edges | 62 Vibrating pad, lifts 20 mm, extends to edges |
Independent tests
Roborock Qrevo CurvX
| Tested by | Carpet deep clean | Pet hair | Hair tangle (0 = none) | Area per charge | Conditions |
|---|---|---|---|---|---|
| Vacuum Wars | 92% | 77.5% | 0 | 1,700 sq ft | Embedded sand in medium-pile carpet; flattened 2.5 in pet hair on carpet, two runs; 7 in hair tangle on hard floor (0 = none wrapped). |
Roborock S8 Max Ultra
| Tested by | Carpet deep clean | Pet hair | Hair tangle (0 = none) | Area per charge | Conditions |
|---|---|---|---|---|---|
| Vacuum Wars | 72% | 75% | 0.6 | 1,006 sq ft | Embedded sand in medium-pile carpet; flattened 2.5 in pet hair on carpet; 7 in hair tangle on hard floor (0 = none wrapped). |
Specifications
| Roborock Qrevo CurvX | Roborock S8 Max Ultra | |
|---|---|---|
| Vacuum | ||
| Claimed suction | 22,000 Pa | 8,000 Pa |
| Main brush | dual anti-tangle system | DuoRoller Riser dual rubber brushes |
| Dustbin | 259 mL | - |
| Extending side brush | Yes | Yes |
| Mopping | ||
| Mop | Dual spinning pads, lifts 10 mm, extends to edges | Vibrating pad, lifts 20 mm, extends to edges |
| Mop lift | 10 mm | 20 mm |
| Leaves mop at dock | No | No |
| Extending mop | Yes | Yes |
| Water tank | 68 mL | - |
| Dock | ||
| Dock | Washes mop + empties | Washes mop + empties |
| Self-empties | Yes | Yes |
| Washes mop | Yes | Yes |
| Hot-water wash | Yes | Yes |
| Hot-air drying | Yes | Yes |
| Detergent dosing | No | Yes |
| Water hookup option | No | Yes |
| Navigation & app | ||
| Navigation | LiDAR + camera | LiDAR + 3D light |
| Obstacle avoidance | Structured light and RGB camera, recognises 108 object types | 3D structured light (Reactive 3D) |
| Climbs thresholds | 40 mm | - |
| Matter | Yes | - |
| Voice assistants | Alexa, Google Assistant, Siri Shortcuts | Alexa, Google Assistant, Siri Shortcuts |
| Build | ||
| Height | 3.1 in (79.8 mm) | 3.8 in (97 mm) |
| Retracting LiDAR | Yes | No |
| Battery | 6,400 mAh | 5,200 mAh |
| Run time | Up to 3 h 40 min | - |
| Weight | 9.7 lb (4.4 kg) | - |
| Warranty | 1 year | - |
| Released | 2025-06 | 2024-04 |