iRobot Roomba 860 vs 870

iRobot Roomba 860 vs 870: What Are the Key Differences?

As you have clicked on this article, we guess it will be safe for us to assume that you are planning to get a Roomba. And there is a high chance that you can not spot the differences that lie between the IRobot 860 and 870 that properly.

Well, before we get into anything else, we would like to assure you that you have made the right choice. The brand IRobot surely provides offers highly capable and reliable devices.

But the main question is when it comes to iRobot roomba 860 vs 870 is which one should you choose? Well, that is why we are here. We have vigorously tested both the cleaners and know enough about them to give you a proper idea regarding their performance and power.

iRobot Roomba 860

The 800 series of Roomba had a lot of exciting features. There is a vast array of useful functions and features that surely sets these devices apart. However, when it came to the 860, the brand's main aim was to offer most of the new functionalities and features at an affordable price.

iRobot Roomba 860

Debris Extractor

One of the main things that set the 800 series apart was the debris extractor. And the 860 has two of them on both sides. These extractors utilize rubber tread and run in opposite directions. And for the rubber tread, the chances of the hair and other fibers clogging up the brush will be exceptionally low.

As the extractors are generally tangle-free in nature, there will be no need to carry out the maintenance task that much. However, you do need to empty up the bin and clean up the filter ( more on that later), but the device will not require that much maintenance and will offer you a hassle-free user experience.


Another major improvement of the 800 series is the battery. The lithium-ion battery is sure to run for a long amount of time. In some scenarios, it can offer three times more running time than the older series. And the same thing can be seen for the 860.

iRobot Roomba 860

On that note, thanks to the smart features, this Roomba will know when to return to the base. So, there will be no need to manually pick up the device and make it sit on the charging station when the battery is low.


Most people wonder how do these devices know where to clean. Well, the navigation is generally done using an AI. And the AI that 860 utilizes is one of the most efficient ones that iRobot has to offer. It boasts a wide array of sensors and can navigate through the entire home smoothly.

iRobot Roomba 860

The AI will also enable you to customize the cleaning sessions. There are seven slots, which you can use to adjust the timing and area you want to clean. The package also comes with one wall barrier. That will enable you to create a virtual wall to stop the device from going into certain areas of your room.


When it comes to performance, the 860 is pretty much up there. It utilizes AeroForce three-stage cleaning system. And this system is capable of offering 50 percent more cleaning power than the older models. For that reason, you will find the surface of your rooms free of dust and debris after the device ends its session.

iRobot Roomba 870

While the budget option, the Roomba 860, is great and all, some of the buyers have the extra money to get the extra features that the brand is capable of offering. And for those customers, the 870 is an excellent pick. Wondering why? You will know exactly why after reading this segment!

iRobot Roomba 870

HEPA Filter

So, what does the extra cash really get you? While most of the 800 series comes with a standard filter, this one utilizes a HEPA filter. And if you are not familiar with this filtration system, it is one of the most efficient ones that the industry has to offer.

But what exactly makes it efficient? Well, it has the ability to capture most of the small dust particles that float around in the air. So, after the device is done cleaning your rooms, the air around should be clean, and you will not have to worry about having allergenic reactions if you suffer from one of them.

iRobot Roomba 870

However, the HEPA filters do not usually last that long. This is one of the negative aspects of the highly efficient filtration system. That means you might find yourself buying replacement filters from time to time. But the package does include a spare one, which is always a good thing.


Like some of the other models of the 800 series, this one also boasts the iAdapt technology of iRobot. It will utilize a broad range of sensors and AI functionalities to navigate around the room. As a result, the cleaning efficiency of the unit is going to be reasonably high.

iRobot Roomba 870

Other than that, the AI offers loads of customizability features. It is possible to adjust the schedules and map the path using the bundled app. Also, thanks to the tangle-free extractors, the device is sure to offer a consistent and smooth cleaning performance. You can also manually control the power with the app.


The suction and cleaning power of the unit is up to the mark. And it achieves that position due to featuring the AeroForce technology. The three-stage cleaning system should offer a stellar overall performance when it comes to cleaning the surfaces effectively.

Additionally, the Aero-force filtration system will ensure that all of the fine particles are properly trapped inside the HEPA filter. Also, the unit holds the capability to deep clean certain surfaces. So, it can go over the carpets and can clean out the dust and debris that are embedded inside them.

Virtual Walls

Even though the virtual walls are not a new thing for the 800 series, this model seems to handle them properly. The 870 is capable of recognizing multiple virtual walls, and the package already includes two of them. That extra wall is another thing the extra money is getting to you.

iRobot Roomba 870

iRobot Roomba 860 vs 870: Differences

Now, the model number is not the only thing that is different between these. There are plenty of other things as well. And to make the right purchase decision, you need to know about them all.

Virtual Wall

As you know by now, the 860 will ship with one virtual wall. However, the 870 comes with two. But the number of included walls is not the only thing that is different. The 870  is better at handling the virtual wall. Do note that the 860's AI is fairly capable as well, but it struggles a bit while handling multiple walls.

iRobot Roomba 870

Considering that, if you are planning to make multiple numbers of virtual walls in your home, it would be better to pick the 870.


One of the most important features that separate these two is the battery life. The 870 comes with an XLife extended cell that is sure to last for a long amount of time. However, the 860 is not that bit behind when it comes to battery life. Its lithium-ion can surely make the unit operational for a long amount of time.

Now, if you are looking for numbers, the 870 can last for up to 90 minutes. The average run time of this device is about 75 minutes. On the contrary, the 860 can run for a maximum of 75 minutes. This runtime can lower a bit if the condition of the surface is not that good.

iRobot Roomba 870

That being said, both of them will automatically return back to the charging station when the battery level is close to zero. So, you will not have to worry about manually charging any of them.


Being a bit pricey, the extractors of the 870 is a bit advanced than the 860. It can handle pet hair and other strands of fibers a bit better than the 860. However, the extractors on the 860 are fairly capable as well. If the rooms are not full of hair and strands, there will be not much to worry about.

iRobot Roomba 870


The last difference that lies between both models is the filtration system. While the 870 utilizes a HEPA filter, the 860 will come with a regular filter. And the HEPA filter is highly capable of filtering out dust and small particles from the air. But it will require frequent replacement as it is not washable.

Final Words

To conclude, there is really no clear winner in the case of iRobot Roomba 860 vs 870. If you want to enjoy most of the features that Roombas has to offer but do not want to break your wallet, the 860 is the right choice. However, if you can afford the 870, we would suggest going for it because it will surely be worth it!

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