Difference Between iRobot Roomba 860 vs. 870

Difference Between iRobot Roomba 860 vs. 870

If you have been on the internet for a while, especially around 2002, then you are no stranger to the name “Roomba” or robot vacuum cleaners. The company’s range of these robotic vacuums has since increased to a set of different series.

We will be focusing on the 800 series, mainly the 860 and 870 models. Both look strikingly similar and are good at their job, so it is not a surprise to us if you are wondering what makes the two apart from each other?

Our iRobot Roomba 860 vs. 870 will tell you that these two have some differences between them even though they may look identical at first glance. And we will discuss all of them. 

iRobot Roomba 860 Review

iRobot Roomba 860

In general, the 800 series has many unique new features and technologies, making it so popular among the people. And the 860 is one of their most advanced models.

Its most appreciated and useful feature is the AeroForce 3 Stage Cleaning System. The way it works is that the rotating brushes pick out the debris on the floor and work together with the suction by bringing them near it. Thus it never misses a spot.

Thanks to it, you are getting up to 50% better cleaning performance. Also, it has five times more the suction power and requires less maintenance than the previous 600 and 700 series’ models.

Besides, the Tangle-Free Extractors prevent all the dust particles, debris, and hairs from clogging the device's interior by breaking them down. So along with its larger storing compartment, this helps to store even more waste.

Moreover, it has a dual-mode virtual wall meaning it has two different modes to keep the device out of reach of an area of the room. Thus it gives you more flexibility.

You can set it to create a 10 feet block opening to keep it out of a specific room. Or you can build a 4 feet radius to make sure it doesn't reach an object or a part of the room. The device can adjust to tiles, carpets, laminated, and hardwood floors.

Furthermore, its powerful lithium-ion battery distributes up to 2 times the cycle than others. That means you can clean an entire room and schedule the next day without having to charge it again. You can program it to 7 days a week for an auto every day clean. It also answers your question if Roomba can clean more than one room at a time.


  • Designed to vacuum without missing a spot or debris
  • Has five times more suction power and requires less maintenance than the previous series
  • Breaks down debris, dust, and hairs and prevents clogging
  • Has a dual-mode virtual wall for keeping it out of programmed areas
  • Lithium-ion battery distributes two times the cycle


  • Needs restarting or resetting it manually after charge
  • Might get struck

iRobot Roomba 870 Review

iRobot Roomba 870

The 870 is the next model in line in the 800 series and shares many new technologies and features as the previous. It has the same AeroForce 3 Stage Cleaning System, which helps brush the debris towards the suction for more thorough cleaning.

Along with that, it uses a unique Dirt Detect Series 2. It finds dirt around the room using its acoustic and optical sensors for an even thorough cleaning. Also, its side brush spins to clean around the edges and corners of the room.

It has the tangle-free extractors as well to help collect as much dust and debris around the room and carpet as possible. By breaking down all those hairs and pet hairs, it makes sure the system doesn't clog up and is also easy to clean.

Besides, like previous, this model in the series also delivers 5 times more suction power than their 600 and 700 series as well as needs less maintenance. You can also schedule it to any time and day of the week for regular cleaning of the house.

Its XLife Extended life battery provides a longer battery life, which means a thorough deep clean around the house without having to charge it in the middle. The battery life is around one and a half to 2 hours.

Moreover, it has a home base charging station, and it automatically goes back to the station to charge when it is low. So you don't need to check on it for a low battery.

Among other mentionable features is the virtual wall. It has two virtual walls that keep it away from areas or rooms up to dimensions of 4 feet or 7 feet. 


  • Thoroughly cleans every corner of the room
  • Brushes help to push the debris towards the suction
  • Battery life of 1 ½ to 2 hours
  • Has two virtual walls
  • Uses sensors to detect debris


  • May not navigate well
  • Doesn’t support smartphone control

iRobot Roomba 860 vs. 870 Comparison

Now that you how the individual models work, we will compare them to get into the differences. From our experience of previous comparison reviews such as the iRobot Roomba 761 vs. 650, we have known some interesting facts about the brand, and its different models.


Both the 860 and 870 have good batteries that can finish a cycle or two of cleaning without a recharge. The 860 has a Lithium-ion battery, whereas the 870 has an XLife extended life battery.

However, the 870 has a better battery life than the 860. 870's XLife extended life battery can last up to a maximum of two hours. Its battery life is said to be around 75 to 90 minutes. On the other hand, the lithium-ion battery can last a little more than an hour.

Virtual Wall

Both of the Roombas can map room layouts. Moreover, the 860 and the 870 have their virtual walls, so you can set it to create a block opening around an area or object in the room, preventing the Roomba from entering. While the 860 has a dual-mode virtual wall, the 870 has two different virtual walls of 4 and 7 feet dimensions.

In 860, the dual-mode virtual wall is a set of one virtual wall with two modes. One allows you to set a block opening of 10 feet maximum, and the other creates a 4 feet diameter or, as the mode name says, a Halo around the object or area of the room.


Even though they have minimal differences and share most features, including the dimensions and weight, the 870 model works better in terms of performance and cleaning than the 860. Hence, there is a strict $100 price difference between them.

Frequently Asked Questions

What kind of filters do they use?

Both models use a HEPA style filter.

How much do they weigh?

They weigh the same, that is, 8.4 pounds or 3.8 kg

Can it go under furniture, or will it get stuck?

It has a height of 3.6 inches, so it mainly depends on your furniture.

How well does it do on different surfaces and floors?

Both the 860 and 870 have an auto-adjust feature to different floors like tiles, laminated, hardwood, and also carpeted floors and does a great job cleaning them.

Do I need to clean the brushes and rollers often?

It is good practice to clean them once every week for continuous good performance. However, if you notice the rollers aren't working, then you should clean them immediately.  


Even though the models don't have much of a significant difference, they mostly depend on your needs that make them apart and different. We hope Our iRobot Roomba 860 vs. 870 comparisons made everything clear and answered your questions regarding them.

Lastly, have you checked the Roomba 761 and 620? They are great and more affordable.

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