Let's talk about the Dreame's newest X50 Ultra, the most-featured robot in the lineup, and the Roborock's Qrevo Curv, a robot from a previous generation.
Roborock Qrevo Curv vs Dreame X50 Ultra
| Features |  Roborock Qrevo Curv |
 Dreame X50 Ultra |
|---|---|---|
| Price | $1199.99 Amazon | $1399.99 Amazon |
| Cleaning specs | ||
| Suction power (Pa) | 18,500 | 20,000 |
| Battery life (min) | 180 | 180 |
| Battery capacity (mAh) | 6,400 | 6,400 |
| Roller type | DuoDivide | HyperStream Detangling DuoBrush |
| Map saving (4 maps) | yes | yes |
| Dustbin capacity (ml) | 270 | 395 |
| Height of the robot (in/cm) | 3.78/9.6 | 3.5/8.9 |
| Climbing ability (in/cm) | 1.4/4 | 2.36/5.9 |
| Filter type | washable HEPA E11 | washable HEPA E11 |
| Navigation | ||
| Navigation System | LDS | VersaLift DToF |
| Obstacle Climbing Technology | AdaptiLift Chassis | ProLeap System |
| Front camera & object recognition | yes | yes |
| Object recognition technology | Reactive AI Obstacle Recognition | AI RGB + 3D Structured Light |
| Dirt Detection | Smart Dirt Detection | Smart Dirt Detection 2.0 |
| Pet-friendly | ||
| Video call & voice interaction | yes | yes |
| Search for pet | yes | yes |
| Pet snaps | yes | yes |
| Self-cleaning base station | ||
| Auto dust emptying | yes | yes |
| Auto water tank refilling | yes | yes |
| Auto mop washing | yes | yes |
| Self-mop washing temperature (°C/°F) | 60/140 | 70/158 |
| Self-wash mode adjust | yes | no |
| Auto mop drying (hot air) | yes | yes |
| Drying duration modes | yes | no |
| Auto detergent dispenser | no | yes |
| Auto washboard self-cleaning (hot water) | yes | yes |
| Auto washboard self-dry | no | yes |
| Disposable bag capacity (ml) | 2,700 | 3,200 |
| Water container capacity (ml) | 4,000 | 4,500 |
| Mopping | ||
| Side brush extends | yes | yes |
| Side brush lift | yes | yes |
| Side Brush retract | yes | no |
| Mop extend | yes | yes |
| Removable mop for carpet cleaning | no | yes |
| Electronic water tank | yes | yes |
| Water output control | app | app |
| Mopping system | Double rotating mop | Double rotating mop |
| Rising mopping pad | yes | yes |
| Mop lifting (in/mm) | 0.75/17 | 0.4/10 |
| Rising roller brush | yes | yes |
| Roborock app | ||
| Virtual boundaries / Blocked areas | yes | yes |
| Smart no-go zones suggestion | yes | no |
| No-mop zones | yes | yes |
| Zone cleaning | yes | yes |
| Room recognizing / Scheduling by room | yes | yes |
| Mopping scheduling | yes | yes |
| Carpet identification | yes | yes |
| Scheduling | yes | yes |
| Cliff / obstacle sensors | yes | yes |
| Recharge & Resume cleaning | yes | yes |
| Different suction and mopping modes for each room | yes | yes |
| Amazon Alexa / Google Home support | yes | yes |
Both robots are best-of-the-best on the market. The two are best at navigation & avoiding objects, cleaning performance, and ease of use.
Self-cleaning station
The self-cleaning station has a different design but shares the same functions:
- Self-emptying.
- Auto-wash and dry the mopping attachment with warm water and hot air. The Dreame's station washes the pads at a higher temperature.
- Auto water and cleaning solution refill.
- Auto wash the station washboard. The washboard automatically gets cleaned during mop cleaning. The Dreame dries the board to leave it fresh and streak-free.
The Roborock station allows setting the mop washing temperature and drying duration.
The Dreame's station dries the washboard, which reduces odors and adds detergent.
Cleaning mechanics, mapping, navigation, and mopping
Mapping & navigation: The Roborock uses LDS, while the Dreame has VersaLift DToF, which retracts the tower under furniture, making the robot shorter.
Pet-friendly robot vacuum
The two use different obstacle recognition technologies.
Mopping: two rotating pads
Each robot extends a mop and a side brush along the walls. Depending on the cleaning task, both lift the mop and the rollers.
In a vacuuming-only mode, the Dreame leaves the mops on the station; the Roborock retracts a side brush to avoid collusions
AdaptiLift Chassis vs ProLeap system
The Roborock has adjustable three-wheel control to cross over thresholds (up to 4cm).
The Dreame's ProLeap system has retractable legs that help to cross a 2.36in (5.9cm) obstacle with ease (if there is a two-step obstacle).
Roborock Qrevo Curv
The Roborock Qrevo Curv features a unique self-cleaning station, advanced obstacle-climbing technology, and zero-tangle rollers.
The Qrevo Curv's modification, the Qrevo Curv S5X, lacks the AdaptiLift chassis, which makes the robot cheaper.
The Roborock Qrevo Curv detects dirt and then goes to the station to re-wash the mops and re-mop the area. The station doesn't have a cleaning solution refill, but it has three temperature settings to wash the mopping pads.
The robot smartly suggests No-Go zones when it can't go to certain areas. With the AdaptiLift Chassis, the robot can climb up to 4 cm if there is a 3cm step, so it does two steps, overcoming the standard threshold.
The Roborock Qrevo Curv is a premium robot vacuum, one of the best on the market
Dreame X50 Ultra
Unlike Roborock, the Dreame X50 Ultra leaves the mopping pads on the station, lifts the side brush, has retractable legs to overstep the thresholds, and hides the tower under furniture.
The station has the same features, except one temperature setting for mop washing, and an auto detergent refill. The upgraded dirt detection can tell apart solids, liquids, or a mix, making sure every spot is gone for a perfect clean. Unlike Roborock which has re-wash and re-mop features, the Dreame additionally recognizes dirt.
Retractable legs help the robot to overcome thresholds up to 5.99 cm IF there is a shorter step. It easily steps over 1.65in single-layer thresholds and 0.71in obstacles if it has a chance for two steps.
The robot gets 89mm short under low-profile furniture
To sum up
The two premium devices do their job as a vacuum and deliver a smooth mopping experience with a rich-featured self-cleaning station.
The Dreame X50 Ultra has more power and better climbing ability. On top of that, the retractable tower. Overall, it has more features compared to the Roborock, yet since it is a new robot, it might take some time for the manufacturer to improve the new technologies so that it works the way it should.
The Roborock Qrevo Curv has a completely different self-cleaning station that allows adjusting washing temperature and drying duration. It adapts to the cleaning environment and smartly suggests a cleaning strategy based on the previous run. Roborock has great customer support and is known for its solid quality.
When taking into account that the Roborock is cheaper, it still looks like a better option even tho it doesn't have the extra features the Dreame does.