Faceithard is supported by readers. When you buy with our links, we may earn a commission. Learn more

Roborock S6 MaxV VS Roomba S9/S9+ – Head to Head Comparison

Comparison of Roborock S6 Maxv and Roomba S9 models If there are few robot vacuums with all advanced features, top-notch performance, and from top brands.


There is no doubt to say Roomba S9 and Roborock S6 MaxV are on that list.

But which robot stands first? What are the key differences that make Roborock S6 MaxV more selective? Learn more.

Quick Note: S9+ is an upgraded model to S9 with only one difference – the auto dust disposal feature. Yes, S9+ auto empties itself when the dust is full, where s9 can’t. For that function in S9, you need to purchase the self-emptying base attachment separately.

Attention: So in this comparison guide, to avoid any uncertainty, we just named S9 instead of S9/S9+. Have it in mind and keep reading.

If you are short on time, take a look at the quick overview:

Key Differences between Roomba S9 and Roborock S6 MaxV

  • Suction Power: Roborock S6 MaxV is with more potent suction (2500Pa) than Roomba S9 (2200Pa)
  • Mopping Functionality: Roomba S9 lacks this, Whereas S6 MaxV is best at mopping.
  • Self-emptying: S9 supports auto dust disposal feature where S6 MaxV can’t. S9+ came up with this in the package.
  • Battery Life: In a single charge, S6 MaxV works for nearly 200 minutes, Whereas Roomba s9 works 120 minutes.
  • Dustbin Capacity: S9 is with 550ml dirt bin size, S6 MaxV steps back here with 480ml size.

Quick Summary: Considering the differences, Irobot’s top-end Roomba S9 steps down a bit except with the self-emptying feature. At a reasonable price tag with all packed (including the effective mopping option) features makes Roborock S6 MaxV our recommended choice.

Roborock S6 MaxV vs Roomba S9/S9+ – Side By Side Comparison Chart

From small to big, every specification difference and similarity is stated in the below comparison chart.

 Roborock S6 MaxVRoomba S9 / S9+
Height 9.65 cm8.9 cm
Weight3.7 Kg3.7 Kg
Suction Power2500 Pa2200 Pa
Navigation SystemLDS Iadapt 3.0
Intelligent Objects RecognitionYesYes
Mopping FunctionYesNo
Self EmptyingNoS9 Supports, S9+ (Yes)
Battery Life200 Minutes120 Minutes
Automatic Recharge YesYes
Automatic ResumeYesYes
Carpet BoostYesYes
Multi-Surface Rubber BrushesYesYes
Dustbin Capacity550ml480ml
Selective Room CleaningYesYes
FiltersHEPA + E11 (95% Dust)HEPA (99%)
Washable FilterYesYes
Zone Cleaning YesNo
Room Based SettingsYesNo
Water Tank Capacity300ml
Mopping SchedulingYes
No Mop ZonesYes
Amazon Alexa SupportYesYes
Google Home SupportYes Yes
PriceCheck on AmazonCheck on Amazon

Roomba S9/S9+ VS Roborock S6 MaxV – Every Difference, Similarity Covered


Roomba S9’s height is 8.9 cm, where else the Roborock S6 MaxV is slightly taller at 9.65 cm. Given their sizes, the Roomba gets under low-clearance furniture very conveniently. At the same time, the S6 MaxV struggles a little but still manages to squeeze through.

Both robots clean the hard-to-reach zones, including your living room, bedroom, kitchen areas, without any effort.

Roomba S9 and Roborock S6 MaxV have an identical weight at 3.7 kg. Their ideal mass makes it easier to carry them between rooms or floors for cleaning purposes. Have to vacuum the attic? Just relocate the robots without even breaking a sweat.

Suction Power Differences

2200 Pa in Roomba S9

Roomba S9 lifts dirt from carpets and hard floors using its immense suction force of up to 2200 Pa. Featured with Power Boost Technology, the s9 easily removes the most stubborn dirt when it deploys its suction force that is 40 times more powerful than previous Roomba models.

Deeply lodged debris in your carpets and dirt between the floorboards no longer stand a chance against the S9.

2500 Pa of pure, dynamic force in Roborock S6 MaxV

So far, this roborock model has the highest suction power in the robot vacuum market.

Using its tremendous suction power, the S6 MaxV pulls dirt, hair, and debris from the depths of your carpets and hard floors. Roborock S6 MaxV vacuums up toddler crumbs in the children’s playroom or dried mud prints on the porch without a single trace.

Furthermore, you can adjust the suction pressure at will using the Roborock Home App. Not all places in your home will demand maximum vacuuming force.

Bottom Line: S6 MaxV is with more powerful suction than Roomba S9.

Mopping – Which Mops and Which Don’t?

Unlike Roborock S6 MaxV, Roomba S9 does not mop – at least not without an additional mopping device. The one here with multipurpose cleaning is Roborock S6 MaxV that gently mops your house using its mopping pad and electronically-controlled wetness.

As a result, you can decide how much mopping wetness you want to clean areas in your home. Need to remove that spilled soup stain in the kitchen? Just set the mopping wetness to a maximum and watch the S6 MaxV glide skillfully while you take a break.

Bottom Line: S6 MaxV Mops, Roomba S9 doesn’t.

Self Emptying – Who can automatically empty their dustbin?

Automatic dirt disposal is only featured in Roomba S9 if the Clean Base attachment is installed on the robot’s docking station. In other words, the S9 comes ready with automatic dirt disposal capability.

Roborock S6 MaxV, on the other hand, does not feature this, and you have to empty the dustbin manually once it is full.

Bottom Line: S6 MaxV doesn’t support the auto emptying dust feature. With S9, you can either purchase the attachment separately or go with the S9+ model.

Which Robot maps better? – Roomba S9 VS Roborock S6 MaxV

Smart Mapping with Roomba S9

The Imprint Smart Mapping of the S9 uses a vSLAM camera and iAdapt 3.0 technology to learn the layout of your house and accurately map it.

Coupled with vSLAM technology and advanced sensors that see obstacles, the Roomba efficiently navigates your home without bumping into walls or furniture.

The vSLAM technology helps the S9 to scan and identify the travel path while mapping simultaneously. As a result, a precise map is stored in the iRobot Home App for all scheduling kinds.

Furthermore, Roomba S9’s imprint mapping allows the robot to recognize rooms from the plan and clean them individually.

Stereo Camera mapping with Roborock S6 MaxV

Roborock S6 MaxV, on the other hand, uses a Laser Distancing Sensor (LDS) system that detects the layout of your house.

Roborock S6 MaxV adopts optical technology when mapping your home. Its Stereo Camera system captures images at 30 fps and stitches them together to form an accurate map of your house.

On top of that, the LDS module aids the S6 MaxV to navigate precisely around your home in a planned path. Furthermore, when a toy, sock, or any obstacle falls in its cleaning way, the S6 MaxV will detect it and adopt an alternate route in real-time.

Are multi-floor maps possible (and can be stored)?

It is unspecified how many maps you can store in Roomba S9. Still, the robot will remember a newly mapped layout for future cleaning jobs. With Roborock S6 MaxV, up to four maps can be stored in the Roborock Home App at one time.

Bottom Line: Both the models are smart ones with the best mapping capabilities, but if you want to know which is more advanced, S6 MaxV takes place. 

How long can they clean in a single charge?

Roomba S9 will operate for 120 minutes before its battery runs out. In contrast, Roborock S6 MaxV cleans for 200 minutes (Silent Mode) in a single charge.

Both Roomba S9 and Roborock S6 MaxV are smart robotic cleaners that know when their batteries are low. They will automatically redirect themselves to the docking stations and begin charging when a low battery is sensed.

Do recharge and resume available?

Yes, for both robots. When a low battery is detected, the S9 and S6 MaxV will orientate themselves to charge first. Upon completing their charging cycle, the robots will head to the exact spots they had left off to resume cleaning.

Is the Carpet Boost Available?

The Carpet Boost, or Power Boost in Roomba S9, is a useful feature for cleaning carpets in your home. The S9 will ramp up its suction force when Power Boost is activated and cleans your carpets thoroughly.

The same is featured in Roborock S6 MaxV. The Carpet Boost technology allows the robot to automatically switch to its highest suction pressure when a rug is detected. Once the hard floor is seen again, both robots will revert to their nominal suction force.

Bottom Line: Both models work with carpet boost mode.

Sensors Differences

Anti-collision sensors in the Roomba S9 guide the robot along walls or around furniture. Besides, there is also a cliff sensor that watches out for a staircase when the S9 is working.

Additionally, the Roomba features Dirt Detect sensors that inform the robot of places of cleaning interest. The dirtier spots will be cleaned thoroughly by the Roomba and ensure no messy trail is left behind.

Like the S9, Roborock S6 MaxV features obstacle sensors that aid the robot while negotiating obstructions. Furthermore, the cliff sensors in the S6 MaxV work proficiently to prevent the robot from tumbling down the stairs. Lastly, an array of peripheral sensors like an accelerometer, infrared sensors, and compasses help Roborock S6 MaxV during navigation.

Roborock S6 Max V can climb over 2 cm or fewer obstacles where it is unknown if the same is doable with Roomba S9. For example, crossing doorsills or getting on top of a thick rug is not a problem for the S6 MaxV.

With Roomba S9, it is uncertain if the robot could climb these barriers.

Bottom Line: S6 MaxV is ahead in terms of sensing abilities.

The capable cleaning brushes

PerfectEdge technology with a Corner Brush for Roomba S9

Dual multi-surface rubber brushes and a PerfectEdge sweeping brush are fitted to Roomba S9. The rubber brushes on the S9 are 30% wider compared to past models. Moreover, the multi-surface brushes gyrate vigorously to remove dirt from floors and carpets and push them into the robot’s suction path.

Most interestingly, the Corner Brush features PerfectEdge technology that enables cleaning along edges and deep into corners.

Denser main brush on Roborock S6 MaxV

The central rotating brush bar on Roborock S6 MaxV is featured with 250% more bristles than older models. Stubborn stains on hard floors and carpets are easily scrubbed by the main brush and pushed into the suction path of the S6 MaxV. Additionally, the side brushes on the robot effectively clean corners and edges along the wall.

Who has a larger dustbin – S9 OR S6 MaxV?

Roomba S9’s dustbin holds 550 ml of dirt and debris, whereas the S6 MaxV can store 480 ml of dust. Therefore, you need to empty the bin on Roborock S6 MaxV frequently than the S9. But for the majority of the households, 500ml is sufficient to say.

There is a full bin indicator on Roomba S9 that alerts you to empty the bin. This feature is not available in Roborock S6 MaxV.

The water tank of Roborock S6 MaxV stores up to 300 ml of water for mopping purposes. Your whole house can be mopped once without refilling because of the large volume reservoir with S6 MaxV. Roomba S9 does not need a water tank as there are no mopping capabilities on the robot.

Bottom Line: Both are at their best.

Maintenance & Handling – Is it a headache?

The robot’s respective apps will let you know when to clean the sensors, change the filters and replace the brushes. Moreover, for Roborock S6 MaxV, you can easily clean the reservoir by washing it under running water and fitting it back.

Lastly, the batteries on the S9 and S6 MaxV will indicate if a replacement is necessary from their apps.

You can quickly provide voice-based instructions to Roomba S9 and Roborock S6 MaxV because both robots are compatible with Google Assistant and Amazon Alexa.

When your hands are full, voice out the cleaning commands, and the robots will get to work dutifully – no need for any extra effort like the conventional vacuum cleaners or the lower end robot models.

Bottom Line: So, maintenance is a breeze with both the models Roomba S9 and Roborock S6 MaxV.

Other Key Features

Selective Room Cleaning

Both Roomba S9 and Roborock S6 MaxV can differentiate the rooms from your house map. Therefore, selected room cleaning is possible with both robots, and you could instruct them independently using their apps.

Simple scheduling

Organizing cleaning sessions for Roomba S9 and Roborock S6 MaxV can be effortlessly done using their respective apps. Moreover, you can even set routines and how a cleaning session should begin from the applications.

How good are the filters?

A high-efficiency filter that traps 99% of cat and dog allergens is included in Roomba S9. Meanwhile, a HEPA filter and an E11 filter included in Roborock S6 MaxV capture up to 95% of dust and allergens as tiny as 0.3 microns.

Is zone cleaning offered?

Zone cleaning is only featured in Roborock S6 MaxV. Say you need to clean only the spilled powder in the dining room. Just set the zones from the Roborock Home App and walk away. The S6 MaxV will take care of the rest. Unfortunately, the zone cleaning feature is not offered in Roomba S9.

Mopping Scheduling & How to prevent an area from being mopped?

Only Roborock S6 MaxV supports mopping scheduling. Suppose a room or zone requires a gentle wipe. In that case, you can easily schedule mopping without the need for vacuuming from the Roborock Home App.

No-mop zones can only be marked for Roborock S6 MaxV because Roomba S9 does not mop. If you need to cover a region from being mopped, just use the Roborock Home App to set no-mop zones, and the S6 MaxV will comply.

Who offers cleaning customization based on rooms?

Scheduling based rooms are only possible with Roborock S6 MaxV. This means you can configure various suction pressures and mopping wetness for each room independently. Need more cleaning in the kitchen? Use a higher suction force and increase the mopping wetness of Roborock S6 MaxV from the app and watch it work.


Roomba S9 is quite similar to the S6 MaxV model in terms of cleaning efficiency and suction power. But even Roomba S9 is a bit high priced, Roborock S6 MaxV is the one with all the advanced high-end features and the effective mopping option.

Most consumers think of getting one robot device that can vacuums and mops, making S6 MaxV the best choice for almost all households.