Roomba Combo j7+ vs. Roborock s7 – All Key Differences 2023

Last updated on April 15th, 2024

Roomba Combo j7+ and Roborock s7 are top-of-the-line robot vacuum cleaners. Both have some pretty impressive features which are hard to come by in regular robot vacuums. But which one is the better one? With its reliable product, Roomba is giving Roborock’s all-time favorite vacuum cleaner tough competition. Let’s find out who wins.

Which is better: Roomba Combo j7+ vs. Roborock s7?

Even with its higher price, the Roomba Combo j7+ is worth it with all its amazing features. It gives a better cleaning experience, navigates more smartly, and comes with a bunch of accessories. The smaller tank capacity and battery life are just something you can manage, given all the additional features you get with the Roomba.

Read a similar article: Roomba i7/i7+ vs. Roborock s7

Roomba Combo j7+

Roomba Combo j7+
Roomba Combo j7+

Roomba Combo j7+ is the first ever Roomba to give bot vacuuming and mopping features. It was first introduced in late 2022. This latest robo vacuum by iRobot provides a cleaning experience that a single Roomba could never give before.

With its top-of-the-kind PrecisionVision Navigation Technology, it detects obstacles with ease. The most amazing part about this Roomba is the way its mop functions. You will be thrilled to discover it in our design section below.

Roborock s7

Roborock s7
Roborock s7

Roborock s7 is built with advanced technologies and rigorous testing. It stands out with its powerful combination of sweeping and mopping functions. It is an ideal choice for versatile and efficient cleaning. Its superior suction power and Sonic vibration technology ensure thorough cleaning.

With longer runtime and high battery capacity, it gives exceptional cleaning performance. The LiDAR navigation technology makes cleaning even in dimly lit rooms possible.

Roomba Combo j7+ vs. Roborock s7: Specifications

Specifications of Roomba combo j7+ vs Roborock s7
Specifications of Roomba combo j7+ vs. Roborock s7

The table below gives the specifications of each robot cleaner.

SpecificationsRoomba Combo j7+Roborock s7
Dimensions13.3 x 13.3 x 3.4 inches13.8 x 13.8 x 3.8 inches
Weight7.35 Pounds10.36 Pounds
ColorSilver on BlackBlack, White
Cleaning OptionsVacuuming, MoppingVacuuming, Mopping
Dustbin Capacity0.4 L0.47 L
Water Tank Volume0.21 L0.3 L
Suction Power1700 Pa2500 Pa
Airflow9.8 CFM12 CFM
Battery Capacity2210 mAh5200 mAh
Runtime75 mins180 mins
Charging Time3 hours4 – 6 hours
Battery TypeLithium IonLithium Ion
BrushesDual Multi-Surface
Rubber Brushes,
Edge-Sweeping Brush
Floating Brush,
Edge-Sweeping Brush
Filter TypeHEPAE11
Control TypeVoice, AppVoice, App
Compatible DevicesAmazon Alexa,
Google Assistant
Amazon Alexa,
Google Assistant
Virtual Wall BarrierPresentPresent
Real-Time Video Call FeatureAbsentPresent
4-Stage Cleaning SystemPresentAbsent
Dirt Detection TechnologyPresentAbsent
Smart Mapping TechnologyPresentPresent
PrecisionVision Navigation TechnologyPresentAbsent
Automatic Dirt Disposal SystemPresentAbsent
Cliff Detection TechnologyPresentPresent
vSLAM TechnologyPresentAbsent
LiDAR TechnologyAbsentPresent
Sonic Vibration TechnologyAbsentPresent
Auto-Retract Mopping SystemPresentAbsent
VibraRise TechnologyAbsentPresent
Dry Rug IntelligencePresentPresent
Hazard DetectionPresentAbsent
Pet Owner Official Promise (P.O.O.P)PresentAbsent
Personalized Schedule RecommendationsPresentPresent
Comparison of Roomba Combo j7+ vs. Roborock s7

Price Comparison

The Roomba Combo j7+ is valued more than the Roborock s7. But at the additional price, you get a reliable product. It is highly durable with a sleek, modern design.

All the enhanced features like PrecisionVision Navigation Technology and Automatic Dirt Disposal System, along with extra accessories like HEPA filter and side-sweeping brush that come with the Roomba, are worth the extra bucks.

So, if budget is not a restraint, then Roomba Combo j7+ should be your ideal choice.

Comparing the design aspects

The Combo j7+ is smaller in size than the Roborock s7. This makes it easier for the Roomba to explore compact spaces. The Roomba is also much lighter in weight at 7.35 Pounds than the Roborock, which weighs 10.36 Pounds. The Roborock is available in two color options – Black and White. In comparison, the Roomba comes only in Black with a Silver circle in the center.

Docking station

The docking station of Roomba has an automatic Dirt Disposal system, which is not present in the Roborock s7. But the Roborock s7 can be easily upgraded to the Roborock s7+ by buying a separate auto-emptying Dock Pure station.

Mopping retraction system

The mops of the Roborock and Roomba are placed at the bottom, but both have a different retraction system. On detecting carpets, the Roborock raises its mop from the floor to avoid carpet dampening. But the Roomba has an Auto-Retract Mopping System, which lifts the mop and places it at the top of the Roomba with the help of expandable arms. It’s a very unique retraction system.

We prefer the Roomba Combo j7+ for its retractable mop, sleek design, compact size, and less weight.

Which one has a larger tank capacity?

The dustbin and water tank capacities of the Roborock s7 are more sizable than the Roomba Combo j7+. While the Roomba only has a 0.4 L dustbin, the Roborock has a 0.47 L one. Also, Roomba’s water tank can hold only 0.21 L liquid. But the Roborock can hold 0.3 L.

If your floor space is more, then selecting the Roborock s7 is a good option because it has more dustbin and water tank capacities.

Note: Even though the Roomba has a smaller dustbin capacity, it also has a self-emptying base. So you don’t have to worry about frequently emptying the dustbin manually.

Whose battery gives better performance?

Both the vacuums feature a Lithium Ion battery. But there’s a massive difference in their capacities. The Roomba has a battery of 2210 mAh, which can be completely charged in 3 hours. But the Roborock takes 4 to 6 hours to charge its 5200 mAh battery.

Because of the higher battery capacity, the Roborock gives a longer runtime of 180 minutes. And the Roomba can only run for 75 minutes on a full charge. This way, the Roborock can cover more area in a single charge.

With a higher battery capacity and longer runtime, the Roborock s7 becomes a better option for cleaning larger surface areas.

Both the vacuums have advanced navigation systems. Roomba’s PrecisionVision Navigation Technology gives Roborock’s LiDAR Technology tough competition. iRobot (the company behind Roomba) combines PrecisionVision with vSLAM Technology to give enhanced navigation capabilities to the Roomba.

When it comes to obstacle detection, LiDAR technology excels in detecting large objects. But it gives a bit of a sketchy performance when it comes to small objects. That is where Roomba overpowers the Roborock.

Hazard Detection feature of Roomba

Roomba also has Hazard Detection technology, which detects potential hazards. If the Roomba finds anything new during its cleaning cycle, it immediately notifies you. It will capture an image of the potential hazard and send it to your mobile app. You get the option to classify the object in question as hazardous or non-hazardous. This way, the Roomba will avoid going near it.

Cliff sensors

Both vacuums are equipped with Cliff Detection sensors to detect the change in height in the cleaning surface. Because of these sensors, your robo vacuum does not fall down the stairs.

Overall, the Roomba Combo j7+ has better navigation capabilities than the Roborock s7.

Which robo-vacuum cleaner is better?

The Roborock s7 is known to have a higher suction power of 2500 Pa and a higher airflow of 12 CFM. The Roomba Combo has an airflow of only 9.8 CFM and a suction power of 1700 Pa. This means that the Roborock is better capable of picking up tiny dust particles, especially in high-rise carpets.

Cleaning technology

Talking about cleaning technology, the Roomba uses an upgraded 4-stage Cleaning System. All the previous models of Roomba only had a 3-stage Cleaning System. Its advanced Dirt Detection Technology can identify more dirty spots in your home and give them more attention while cleaning.

The Roborock uses Sonic Vibration Technology, which is far better at detecting debris than Roomba’s dirt detection. It even has VibraRise Technology that lifts the mop to detect carpets so that your carpet doesn’t get wet. But the Roomba’s Auto-Retract Mopping System gives it a run for its money. The fact that both the vacuums have Dry Rug Intelligence is noteworthy.

Cleaning techniques

When it comes to cleaning techniques, both have a very different approach. The Roomba first vacuums the entire region and then starts mopping. It applies 1.16 lbs of pressure when mopping. But Roborock alternates between mopping and vacuuming during its entire run. The Roborock does save time by alternating, but it compromises the quality of cleaning.

Considering the cleaning factors, choosing the Roomba Combo j7+ will be the best option.

Filter Type Comparison

Both these models use different kinds of filters. The Combo uses a traditional HEPA filter. It is well known for eliminating 99% of allergens from your home. The Roborock, on the other hand, uses an E11 filter. The E11 filter also removes allergens, but it is known to give an efficiency of only 95%.

But the best part is that the E11 filter is washable. You can wash, dry, and put it back into the vacuum robot. But that’s not the case with the HEPA filter. You have to replace it after 4 to 6 months compulsorily. Roomba does provide an extra HEPA filter along with the vacuum.

We would always go for the HEPA filter of Roomba Combo j7+ because of its better performance, but you can save a few bucks with the Roborock s7’s washable E11 filter.

Other features

  • Both vacuums are supported by mobile apps. These apps learn your cleaning history and give personalized schedule recommendations accordingly.
  • The Roborock s7 comes with a live stream feature. You can connect with your vacuum using the mobile app and view a live feed of your house. It acts as an excellent surveillance mechanism in case you are out of the house. This feature is not available with the Roomba.
  • The Roomba Combo j7+ gives the Pet Owner Official Promise (P.O.O.P). This signifies that the Roomba will effectively avoid running over pet poop. If not, the company will replace that Roomba model with a new one.

Are there any extra accessories with these robots?

Yes, the Roomba Combo j7+ comes with a bunch of additional accessories, which you don’t get with the Roborock s7. The most unique being a Bona Hard-Surface Floor Cleaner Concentrate (2oz) and a Bona Hardwood Floor Cleaner Concentrate (2oz). Both of these can be used for mopping.

Unlike Roborock, Roomba allows you to pour floor cleaners into your water tank for better sanitization. You also get an extra HEPA filter with the Combo. You will probably need to replace the pre-installed HEPA filter after 4 to 6 months with this additional one provided.

There’s also an extra Edge-Sweeping Brush in the pack. So maintenance-wise, Roomba has got you covered for at least six months.

We highly recommend getting the Roomba Combo j7+ with all these additional accessories.

Advantages of Roomba Combo j7+ and Roborock s7

Advantages of Roomba combo j7+ vs Roborock s7
Advantages of Roomba combo j7+ vs. Roborock s7

Let’s look at the advantages of both vacuum robots.

Roomba Combo j7+ AdvantagesRoborock s7 Advantages
Compact sizeCheaper
LightweightBetter dustbin and water tank capacity
Lower charging timeHigher suction power and airflow
Better filter typeBetter battery capacity
4-stage cleaning systemMore runtime
Dirt detection technologyReal-time video call feature
PrecisionVision navigation technologyLiDAR technology
Automatic dirt disposal systemSonic vibration technology
vSLAM technologyVibraRise technology
Auto-retract mopping system
Hazard detection
Pet Owner Official Promise (P.O.O.P)
Roomba Combo j7+ and Roborock s7 Advantages


The battle of Roomba Combo j7+ vs. Roborock s7 seems pretty much one-sided. The Roomba has many additional features like Hazard detection and an automatic dirt disposal system that Roborock doesn’t have.

The Roomba also has an upgraded navigation system, and its cleaning performance is also superior. Though the cost of Roomba is more, but with top-notch accessories, it is definitely worth the price.


What is the difference between Roomba Combo j7+ and Roomba j7+?

The major difference between the Roomba Combo j7+ and the Roomba j7+ is that the Combo has an additional mopping feature that the j7+ does not have.

Is the Roomba j7 Combo good for pet hair?

The Roomba Combo j7+ is very good at picking up pet hair. Its smart sensors ensure that pet hair is easily swept away.

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Sarah Williams

I love writing stuff that's easy to read and fun to learn from. Beaches are my happy place—I just can't get enough of the sand, the waves, and the salty breeze. And you know what else? I'm totally into smart home gadgets! They're like magic tricks that make life easier at home.

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