# Roborock Qrevo CurvX vs Roborock S8 MaxV Ultra

As of Nov 4, 2026, the Roborock Qrevo CurvX costs $950 and the Roborock S8 MaxV Ultra costs $800, so the Roborock S8 MaxV Ultra is $150 cheaper. The Roborock Qrevo CurvX has a published review score and ranks #28 in our robot vacuums ranking; the Roborock S8 MaxV Ultra is not scored yet. Pick the Roborock Qrevo CurvX for hard floors and low furniture. Pick the Roborock S8 MaxV Ultra for buyers who want a full featured dock at a discount.

Prices checked Nov 4, 2026. HTML version: https://robotsforthat.com/vs/roborock-qrevo-curvx-vs-roborock-s8-maxv-ultra/

## Side by side

| | Roborock Qrevo CurvX | Roborock S8 MaxV Ultra |
|---|---|---|
| Price | $950 | $800 |
| 3 year cost | $1,052 | $902 |
| Our score | 6.9/10 | Not scored yet |
| Rank in Floors | #28 | #75 |
| Status | on sale | on sale |
| Warranty | 1 year (Roborock US store) | 1 year limited (Roborock US store) |
| Suction | 22,000 Pa (Roborock); TechGearLab measured about 79% of debris cleaned from carpet | 10,000 Pa claimed (Roborock); Vacuum Wars measured 0.18 kPa max on its bench test |
| Navigation | Retractable LiDAR (RetractSense), ToF cliff sensors and RGB camera with LED light (Roborock) | PreciSense LiDAR (Roborock); TechRadar found mapping fast and accurate; Vacuum Wars measured 0.62 m² per min |
| Obstacle avoidance | Reactive AI 3.0, 108 object types, down to 5 cm wide and 3 cm tall (Roborock); TechGearLab saw 88% of obstacles avoided, but Vacuum Wars saw it try to climb cables and toys | Reactive AI 2.0 with 3D structured light and RGB camera, 73 object types (Roborock); TechRadar saw it get stuck on cables and try to eat a sock |
| Mopping | Dual spinning mops, up to 12 N pressure, up to 17 mm lift (Roborock); TechGearLab scored hard floor mopping 9.3 of 10 | VibraRise 3.0 vibrating pad at 4,000 scrubs per min, lifts 20 mm, plus FlexiArm edge mop at 185 rpm (Roborock); Vacuum Wars and TechRadar found it handled dried coffee and juice or honey well |
| Self empty | Yes, up to 7 weeks per the store page, or up to 65 days per the series page (Roborock) | Yes, about 7 weeks per bag (Roborock) |
| Dock features | Dock 3.0 Thermo+ with 176°F mop wash, 113°F drying for 2 to 4 h, warm water refill (Roborock) | Hot water mop washing up to 140°F, heated drying, auto detergent dispenser with 580 ml tank, water refill, dock self cleaning (Roborock) |
| Runtime | 240 min per Roborock via TechGearLab; 6,400 mAh battery (Roborock) | Up to 180 min low power (Vacuum Wars, TechRadar spec table); 5,200 mAh battery (Roborock) |
| Dustbin | Just under 260 ml (Vacuum Wars) | 270 ml robot bin (TechRadar spec table) |
| Height | 3.14 in (Roborock); TechGearLab measured 3.2 in | 4.06 in (Roborock); TechRadar lists 10.3 cm |
| Pet hair | TechGearLab measured 52% of pet hair cleaned; Vacuum Wars found the bin clogged almost daily with heavy shedding | TechRadar found the rollers handled long hair but some hair wrapped the roller axles and side brush |
| App | Roborock app; Hello Rocky voice assistant; Alexa, Siri Shortcuts and Google Home; Matter promised by update (Roborock) | Roborock app with camera, two way mic and voice assistant; 2.4 GHz Wi-Fi only (Roborock); TechRadar found the voice assistant unreliable |
| Threshold | Double layer thresholds up to 1.57 in (4 cm) with AdaptiLift chassis (Roborock) | n/a |
| Noise | TechGearLab measured 56.3 dB vacuuming and 64.4 dB during auto empty; Roborock says as low as 53 dB in mop only mode | 67 dB per the spec table in TechRadar's review |
| Best for | hard floors and low furniture | buyers who want a full featured dock at a discount |
| Skip if | you have a heavy shedding pet | you need to clean under low furniture |

## What reviewers found

### Roborock Qrevo CurvX

- TechGearLab (85/100): Ranked first of 23 robots. Hard floor and mopping 9.3, carpet 8.4 with about 79% of debris cleaned, but only 52% of pet hair. Avoided 88% of obstacles. Measured 56.3 dB vacuuming. [Source](https://www.techgearlab.com/reviews/smart-home/robot-vacuum/roborock-qrevo-curvx)
- Vacuum Wars (3.69 Vacuum Wars stars): Long term test in a 750 sq ft home with a dog. Mopping was strong with vacuum then mop runs and nothing wrapped the brush, but the 260 ml bin clogged almost daily and it often tried to climb objects and needed help. [Source](https://vacuumwars.com/roborock-qrevo-curvx-after-3-months/)
- Popular Mechanics: Picked up flour, corn flakes, rice and pet hair on several floors and reached under furniture better than most robots tested. First mapping took about 30 minutes. [Source](https://tech.yahoo.com/home/articles/roborock-qrevo-curvx-slim-frame-202959647.html)

### Roborock S8 MaxV Ultra

- TechRadar: Strong vacuuming and effective mopping on coffee and dried honey, fast accurate mapping. It got stuck on cables repeatedly, tried to vacuum a sock, and the extending side brush and voice assistant were unreliable. Subscores: Value 3.5/5, Design 4.5/5, Performance 4/5. [Source](https://www.techradar.com/home/robot-vacuums/roborock-s8-maxv-ultra-robot-vacuum-review)
- Vacuum Wars: Measured 0.18 kPa max suction and 13 CFM airflow, 1.41 min per 1% battery and 0.62 m² per min navigation. Handled dried coffee and grape juice stains with minimal streaks, and its feature score was the highest Vacuum Wars had recorded at the time. [Source](https://vacuumwars.com/new-s8-maxv-ultra-vs-s8-max-ultra-which-is-the-best-choice/)

## Questions buyers ask

### Which is better, the Roborock Qrevo CurvX or the Roborock S8 MaxV Ultra?

The Roborock Qrevo CurvX has a published review score and ranks #28 in our robot vacuums ranking; the Roborock S8 MaxV Ultra is not scored yet. Pick the Roborock Qrevo CurvX for hard floors and low furniture. Pick the Roborock S8 MaxV Ultra for buyers who want a full featured dock at a discount.

### Which is cheaper?

The Roborock S8 MaxV Ultra at $800, versus $950 for the Roborock Qrevo CurvX, checked Nov 4, 2026. Over 3 years with running costs: $1,052 vs $902.

### What is the difference between the Qrevo CurvX and the S8 MaxV Ultra?

Suction: 22,000 Pa (Roborock); TechGearLab measured about 79% of debris cleaned from carpet on the Qrevo CurvX, 10,000 Pa claimed (Roborock); Vacuum Wars measured 0.18 kPa max on its bench test on the S8 MaxV Ultra. Navigation: Retractable LiDAR (RetractSense), ToF cliff sensors and RGB camera with LED light… on the Qrevo CurvX, PreciSense LiDAR (Roborock); TechRadar found mapping fast and accurate; Vacuum Wars… on the S8 MaxV Ultra. Obstacle avoidance: Reactive AI 3.0, 108 object types, down to 5 cm wide and 3 cm tall (Roborock)… on the Qrevo CurvX, Reactive AI 2.0 with 3D structured light and RGB camera, 73 object types (Roborock)… on the S8 MaxV Ultra.

Full reviews: [Roborock Qrevo CurvX](https://robotsforthat.com/robot/roborock-qrevo-curvx/index.md), [Roborock S8 MaxV Ultra](https://robotsforthat.com/robot/roborock-s8-maxv-ultra/index.md)