Roborock Q Revo vs S8, which will be the better Roborock bot for the price? For me, the Q Revo is more outstanding for its versatility and convenience.
The Roborock Q Revo, while being in the lower tier compared to the S8, boasts a comparable cleaning efficiency and is even better than average. Additionally, it has LiDAR technology for effective mapping and navigation, just like the S8. It outweighs the S8 for featuring the dual-spinning mopping function and the self-emptying/washing/drying station, providing a better experience to the users.
The Roborock S8, on the other hand, does not include the self-emptying dock like the Q Revo. However, it boasts dual-rubber brush rolls for greater surface agitation. Additionally, its obstacle avoidance technology is more effective than the Q Revo, making it a better option for people who prioritize efficiency in avoiding scattered objects.
Roborock Q Revo Vs S8: Comparison Chart
Roborock Q Revo Vs S8: Differences
The Roborock Q Revo turns out to be the better, with a score of 2-1 against the S8. Though the Q Revo’s obstacle avoidance is not as efficient as the S8, it still offers comparable performance and equivalent navigation and usability while offering the ease of cleaning and maintenance with the self-emptying and washing dock station.
Cleaning performance
Tie!
Suction
| Roborock Q Revo | Roborock S8 | |
|---|---|---|
| Max airflow (cfm) | ~18 | ~12 |
| Max suction (kPa) | ~0.25 | ~0.08 |
Though on paper, the Roborock S8 has stronger suction than the Q Revo, the actual tested results are different. The Q Revo, in fact, has a stronger suction than the S8. The stronger suction will help improve the total cleaning performance in some ways.
Carpets
| Pick-up Efficiency (%) | Roborock Q Revo | Roborock S8 Pro Ultra |
|---|---|---|
| Deep cleaning | ~83% | ~85% |
| Large debris | ~95% | ~97% |
The tests were carried out on medium-pile carpets, and the power mode was on the max level. The S8 does a relatively better job at carpet cleaning. The main dual rollers of the S8 help increase the surface agitation, consequently enhancing the pick-up efficiency of the device. The Roborock Q Revo’s pick-up efficiency on the carpet is just a bit lower but is still above average.
Hard floors
| Pick-up Efficiency (%) | Roborock Q Revo | Roborock S8 |
|---|---|---|
| Large debris | ~97% | ~96% |
| Small & heavy debris | ~93% | ~93% |
The Roborock S8 and Q Revo perform great pick-up efficiency on the hard floor. The results are comparable, so there is not much difference in hard-floor cleaning performance between the duo-roller and single-roller main brush systems.
Pet hair
Both of them perform well in cleaning up pet hairs. They can handle hair on carpeted and bare floors pretty well. The hair tangling on the roller is not significant and is only noticed when there are a lot of long hair strands on the floor. With short hair strands, the S8 and Q Revo perform excellent hair resistance compared to the models utilizing the traditional combo brush.
Design & Convenience
Winner: Roborock S8
Brush roll system
The Roborock S8 has done an upgrade to its main brush system, featuring dual rubber rollers to achieve enhancement in cleaning performance. This duo-roller provides greater agitation to the cleaning surface, which is especially essential to effective carpet cleaning. Meanwhile, the Roborock Q Revo stays with the single rubber roller as the previous S series models like the S5 and S7.
The brand claims that the pick-up efficiency of the S8 is improved by 30% employing the duoroller main brush system, compared to the previous single-roller-equipped models. Seeing the carpet cleaning efficiency proves that the utilization of dual rubber rollers contributes to the deep cleaning improvement of the Roborock S8, especially when in comparison with the Q Revo.
Both of these models come with one side brush with 3 prongs of fibers. In my experience, the length of their brush prongs is enough to pull the debris and dust in the corners and edges into the cleaning route of the bots. Moreover, the spinning force of their side brushes is not too strong to scatter the debris all over the floor, which I consider an advantage.
Navigation & Mapping
Roborock’s navigation and mapping performance has been at the top of the market, thanks to the precise LiDAR navigation technology. Both of the S8 and Q Revo keep featuring the top-mounted LiDAR tower combined with the newly add-on quick mapping function. Thus, their mapping performance is not only as precise as usual, but their mapping time is also shortened.
I enabled the quick mapping function, and both the S8 and Q Revo performed satisfactorily. They are able to create the floor plan of my house’s entire first-floor level within 20-24 minutes without operating an actual cleaning session. Additionally, using the LiDAR navigation, these bots can operate in light-lacking environments. In other words, I can set them clean in the evening after my family goes to bed so that the floor is well-cleaned when we wake up.
They also keep the wall sensors, carpet sensors, and cliff sensors like on the previous mid-range models. These sensors play a critical role in preventing the bots from severe accidents like constantly bumping into walls or falling from the stairs.
Obstacle avoidance
The Q Revo and S8 set themselves apart from the previous models for their obstacle avoidance functions. Both of them are equipped with reactive obstacle avoidance technology, but I noticed that the Roborock S8 performs relatively better.
I tested their obstacle-avoidance performance with a sock, shoe, charging cord, small teddy bear, and fake pet waste. The Q Revo can effectively avoid bumping into the teddy bear but not the rest of the tested objects. It ran over and sucked up the sock and cord and pushed the shoe and fake pet waste.
Meanwhile, the Roborock S8, with advanced Reactive 3D technology, performs better obstacle avoidance efficiency. The Reactive 3D system utilizes the 3-D imagining camera with structured light to enhance object detection. Consequently, the S8 moved close to these objects, analyzing them and then moving around them to continue their cleaning. However, it still chewed up the charging cord.
In short, the S8 can avoid most of the tested objects scattered on the floor. However, both of them cannot avoid the cords as well as I expected. But the ability to detect pet waste and avoid it makes the S8 the greater pick if you have pets and are looking for a bot featuring both LiDAR navigation and decent obstacle avoidance efficiency.
Battery life
Both boast the same 5200 mAh battery capacity, allowing them to work continuously for about 3 hours in the lowest power mode. Besides, they have a fast charging feature, shortening the charging time from around 6 hours to 4 hours. They will continue their cleaning where they left off. I also noticed that these vacuum bots allow me to set the off-peak time, which will help to reduce the energy consumption when charging.
| Roborock S8 | Roborock Q Revo | |
|---|---|---|
| Capacity | 5200 mAh | 5200 mAh |
| Battery life | ~ 100-180 minutes | ~ 100-180 minutes |
| Charging time | ~ 4.5 hours | ~ 4.5 hours |
Control
Tie!
The S8 has three control buttons on its housing, while the Q Revo has two control buttons. Besides the power and docking buttons, the S8 features a child lock/spot clean button, which is not included in the Q Revo model. However, this difference does not influence the control versatility of the Q Revo as it can be controlled using the Roborock app.
Both the S8 and the Q Revo can be monitored via the compatible app. I find the app is easy to use and intuitive. The app shows the real-time cleaning, letting me know the cleaning route of the bots. Thus, I can come to the conclusion that the S8 and Q Revo have very great cleaning coverage. Besides, I can create and save 4 floor plans, an ideal function for multiple-level houses.
The app also lets me adjust the created map by these bots. I can divide or merge the room in the way I want. Moreover, it is possible to put the no-go zones and invisible walls to prevent the unexpected stuck of the bots. They also feature the no-mop zones, which comes in handy for high-pile and thick carpeted regions because the mop-lifting clearance of the Roborock S8 and Q Revo is just about 5 mm and 7 mm, respectively.
Furthermore, when it comes to scheduling cleaning sessions, the app truly simplifies the process since I can customize the cleaning settings and times for each room and area. And as the cherry on top, controlling these robots is a breeze with voice commands. You can seamlessly command them using popular voice assistants like Alexa and Google Home, which adds ease to your smart home experience.
Cleaning & Maintenance
Winner: Roborock Q Revo
The Roborock Q Revo is superior to the S8 for its self-empty/self-wash dock. The Roborock has not sold the stand-alone auto-empty dock for the S8, meaning that I have to upgrade to the S8+ or S8 Pro Ultra to get the convenience of the self-emptying dock station.
The self-emptying dock of the Q Revo also features self-washing and self-drying functions for the bot’s mopping pads. Thus, I do not have to get my hands dirty by manually washing the mopping pads and frequently dumping the dustbin. The Q Revo’s dock station uses the 2.7 L disposable dust bag, so there is no hassle of dust clouds. The only downside I can find so far is the recurring cost of buying dustbags periodically.
On the other hand, owning the Roborock S8 means that I have to wash the mopping pad and dump the dust bin manually after every cleaning session. Well, in fact, this is not ideal for people suffering from severe allergies, as there will be dust clouds when shaking out the debris in the bin.
Both the Q Revo and the S8 do not have the HEPA filter. However, their E11 filters still perform high efficiency in filtering up to 95% of small debris and microdust. Moreover, the filter is washable with tap water, which is also an advantage to some users. The only note is that the filter must be let dry naturally before being re-inserted.
Other features
Winner: Roborock Q Revo
Noise levels
| Roborock Q Revo | Roborock S8 | |
|---|---|---|
| Working | ~60 – 69 dB | ~65 – 73 dB |
| Self-emptying | ~ 80 dB | N/A |
During trial runs, I noticed that the Q Revo is relatively quieter than the S8. When working, its average noise level is just around 63 dB, while that of the S8 is approx. 70 dB. The lower noise can be a plus for some users, especially those who are sensitive to environmental noise.
Mopping function
Both the Roborock S8 and Q Revo all have a mopping function, but I find that the performance of the Q Revo is slightly better than the S8. In my experience, the Q Revo produces more force and a wider cleaning path to the floor than the S8. This can be attributed to dual spinning pads. On the other hand, the vibrating mopping function of the S8 is still better than the passive one, as it is able to remove liquid stains on the tiled floor in several passes.
Quick Rundown of Roborock Q Revo
- Multifunctional Dock - Say Goodbye to Dirty Work. Roborock Qrevo offers a feature-packed dock with Auto Mop Washing so no manual cleaning is needed as well as Hot Air Drying after each cleanup to prevent the development of unpleasant odors. The 5L water tank automatically fills the robot’s tank for a max mopping range of 4305 sqft. Self-emptying means you get hands-free cleaning for up to 7 weeks, and the easily detachable dock base allows thorough cleaning for your convenience.
- Dual Spinning Mops - Watch Stains Disappear. With a spinning speed of 200 RPM and consistent downward pressure, Roborock Qrevo effortlessly removes stains from soda to dried-on spills and more, leaving you with a spotless floor every time. It has 30 water flow levels so you can fine-tune cleaning to match your floor types and preferences.
- Auto Mop Lifting - Mop and Vacuum in One Clean. With Auto Mop Lifting of 7mm, you can clean carpets and floors with ease. Mops are automatically lifted when vacuuming carpets and returning to the dock so that floors and carpets are cleaned in one go and no dirty streaks are left behind.
- 5500Pa Extreme Suction - Keeps the Mess Away. The great suction helps the robot vacuum reach deeper and easily capture dust and dirt from hardwood floors to tiles, and even carpets. The All-Rubber Brush floats on a multi-directional frame for effective cleaning and easily clears away pet hair with fewer hair tangles.
- Reactive Tech Obstacle Avoidance - Detect and Avoid Obstacles with Total Precision. Roborock Qrevo can detect and avoid potential hazards precisely, making cleanups a breeze. PreciSense LiDAR Navigation with 3D Mapping Technology creates precise maps that can be viewed in 3D, and you can add furniture and floor materials to your virtual home build for accurate and customized cleaning.
Quick Rundown of Roborock S8
- Reactive 3D Obstacle Avoidance: With 3D structured light and infrared image technology, Roborock S8 is smart enough to identify unknown objects on the floor, determine their size and location, and bypass them in both bright and dark environments. Paired with LiDAR navigation and 3D mapping, detailed maps are generated for more accurate and customized cleaning.
- DuoRoller Brush: Roborock’s newest dual rubber brush system enhances vacuuming and ensures fewer hair tangles, leaving floors smooth and pristine. From hardwood to tiles, and even carpets and rugs, hair and dirt are easily swept away.
- Hair? Dirt? Dust? Nowhere to Hide: Experience next-level cleaning with 6000Pa suction, which effortlessly eliminates dust, debris, and pet hair from carpets and floors. Clean deeper with the added power of Carpet Boost+ for a spotless and flawless floor.
- Upgraded VibraRise 2.0 Mopping System: The VibraRise 2.0 improves its vibration module two-fold, providing a wider mopping zone, up to 3000 times/min high-speed scrubbing, and over 6N consistent mopping pressure, stains from soda to dried-on spills and more can be cleaned deeply and more effectively.
- PreciSense LiDAR Navigation: Discover the genius of PreciSense LiDAR Navigation, your robot vacuum’s secret weapon to easily maneuver your home during cleanups. Quick Mapping allows you to set and forget the robot and get a perfectly cleaned home, every time.
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References:
- Roborock S8: https://us.roborock.com/products/roborock-s8
- Roborock Q Revo: https://us.roborock.com/pages/roborock-q-revo
Richard B. Schmidt is a prominent figure in the vacuum cleaner industry, boasting over 15 years of expertise. Armed with a Robotics Engineering degree from Northeastern University and a Master’s in Consumer Science from Harvard, his unique blend of technical knowledge and consumer insights positions him as a sought-after authority in vacuum cleaner evaluation. Richard’s career began at Dyson, where he contributed to the development of innovative vacuum models. Transitioning to advocacy and reviews, he co-founded the first Vacuum-focused blog in 2008, offering comprehensive analysis and user guides for various vacuum cleaners. In 2020, he founded RoboMop.net, providing ongoing insights through columns and buyer’s guides.