Roomba i3 vs. i4 vs. E5 vs. i6 vs. i7 vs. i8 Robot Vacuum Comparison

iRobot has some of the top-performing robot vacuum models on the market today. In this comparison article, we’re looking at six different models, the Roomba i3, i4, E5, i6, i7, and i8. We are putting these robot vacuums in head-to-head combat to see which one reigns supreme.

irobot robot vacuum comparison

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Roomba i3/i3+

One of the latest robotic vacuums that iRobot has released is the Roomba i3/i3+. This Roomba’s price tag doesn’t reflect its real value. It’s also one of the most feature-packed entry-level Roombas. Let’s see what this small machine can do.

Roomba i3 vs. i4 vs. i5 vs. i6 vs i7. vs. i8

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Suction Power & Performance

The Roomba i3 comes with a 10x power-lifting suction, making it able to suck up almost any kind of object. It also has a premium 3-stage cleaning, which users can adjust when using it.

Navigation & Mapping Technology

This vacuum comes with smart navigation and a map that will guide the vacuum when cleaning the house. It also has a reactive sensor technology where it should and shouldn’t go.

Connection & Controller

The robot vacuum can clean the house manually or using Wi-Fi. When it is connected to Wi-Fi, users can control the vacuum using app control or voice control.

iRobot Roomba i3+
iRobot Roomba i3+

Clean Base

Another great thing about the Roomba i3+ is the clean base automatic dirt disposal. With this feature, the robot can clean and empty its bin without extra effort.

The main difference bewteen the Roomba i3 and i3+ is the Automatic Dirt Disposal Clean Base that allows the i3+ to empty itself. The base is similar to the Roomba i7+, as well as the Roomba s9+.

iRobot Roomba i3+ EVO (3550) Self-Emptying Robot...
  • PERFORMANCE: The iRobot Roomba i3 plus (3550) Wi-Fi Connected Robot Vacuum pulls in stubborn dirt with a...
  • AUTOMATIC DIRT DISPOSAL: Forget about vacuuming for months at a time with the Clean Base Automatic Dirt...
  • APP: The newly updated iRobot Home App allows you to upgrade your overall cleaning experience. Enjoy features...

Last update on 2024-06-24 / Affiliate links / Images from Amazon Product Advertising API

i3+ vs i6+ vs i7+ Comparison Table

iRobot Roomba i3+iRobot Roomba i6+iRobot Roomba i7+
Main Differences

Clean Base111
Virtual Wall Barriernonono
Dirt Disposal Bags212
High-Efficiency Filter1no1
Extra Side Brushnono1

Suction Power 1700 Pa1700 Pa1700 Pa
Сleaning Area 1830 ft21991 ft21991 ft2
Dust Container500 ml500 ml500 ml

Battery Capacity 1800 mAh1800 mAh1800 mAh
Runing time 75 min75 min75 min
Charging Time 150 min120 min120 min

Carpet Boost noyesyes
Cliff Sensor yesyesyes
Dirt Detect yesyesyes
Full Bin Indicator yesyesyes
Other Specs

Weight 10.36 lbs7.28 lbs7.28 lbs
Width 13.31 in13.31 in13.31 in
Height 3.62 in3.62 in3.62 in
ReleaseSep 2020Sep 2020Sep 2018
PriceCheck PriceCheck PriceCheck Price

Related Post: Roomba i3+ vs. i6+ vs. i7+

Roomba i4/i4+

The next Roomba robot is the Roomba i4 (4150). Many people say this is almost like the i8+ but a cheaper and more affordable version. Let’s check out the features and performance.


The Roomba i4 also comes with a 3-stage cleaning system that is premium. However, this machine comes with a 10×2 power making it powerful to pull out stubborn dirt and messes that sometimes you can’t see.

Roomba i4
Roomba i4

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Cleaning Pattern

Supported by its navigation of the house, users won’t need to worry about how the robot vacuum will clean the house. It will not hit or crash into dangerous things as it also has a neat cleaning pattern row.

Roomba i4+ Video

iRobot Genius

Well, powered with iRobot Genius, this machine can start cleaning just by learning from your habits. It can also suggest extra cleaning when an area in the house is dirty and needs additional cleaning. So, this small machine might even be smarter than your maid.

The i4 is the same robot vacuum as the i3. Both models don’t not offer a wholly unique or distinctive vacuuming experience.

iRobot Roomba i4+ EVO Self Emptying Robot Vacuum -...
  • 20% LARGER BATTERY – Larger battery for extended runtime. Compared to other Roomba i series Robot Vacuums
  • EMPTIES ITS VACUUM BIN, SO CLEANING IS OFF YOUR MIND - Cleans up after itself, emptying its Vacuum Bin into an...
  • CLEANS THE ROOMS YOU WANT WHEN YOU WANT - iRobot OS learns and personalizes your cleaning with Imprint Smart...

Last update on 2024-06-25 / Affiliate links / Images from Amazon Product Advertising API

Roomba i5/E5

The Roomba E5 seems like an upgraded version of the Roomba 890 but with a more advanced feature. It is also one of the newest models introduced by iRobot, so it is rare to find. So, what are the pros and cons of this version?

Dual Rubber Brushes

Overall, the design of the brushes is almost the same as Roomba i7+. However, the only difference is that Roomba E5 doesn’t have automated suctions. This is a minus part of the machine, as it doesn’t clean the floor as clean as the Roomba i7+.

Roomba E5
Roomba E5


There isn’t much change in the design. However, the Roomba E5 is quite simple yet elegant. When you see the top part, you will see three buttons: home, clean, and a navigation button.

Roomba E5 vs i7
The Roomba E5 uses iAdapt 2.0 and sensor-based navigation where the Roomba i7 uses camera-based navigation using iAdapt 3.0.

Virtual Walls

One of the accessories that come with the Roomba E5 is a virtual wall. The primary function of the dual-mode wall is to create invisible linear and radial lines. This will help prevent the Roomba from falling off a particular area of the house.


Like most robots on the market, the i5 comes with a pretty standard programmable scheduler that lets you decide when and where to clean. However, with Adaptive Cleaning technology, the i5 can create its cleaning schedules based on historical data showing how often you run the robot, for how long, and where. You’ll find this feature in all of the i-series robots.

iRobot Roomba E5 (5150) Robot Vacuum - Wi-Fi...
  • Powerful: Power-Lifting Suction delivers 5x the air power
  • Smart: Amazon Alexa and Google Assistant compatible
  • Ideal For Pet Owners: Cleans dirt, hair and allergens

Last update on 2024-06-25 / Affiliate links / Images from Amazon Product Advertising API

Roomba i6+

Upgrade the basic robot vacuum by getting a smarter and more advanced machine with the Roomba i6+. Despite the high price, what can the robot vacuum do?

Cleaning Performance

The Roomba i6+ is a great machine that can clean across a variety of surfaces. It has been proven that the vacuum can clean on shaggy carpets, hardwood, or tile floors. The results were quite impressive as it was clean from all kinds of dirt.

Roomba i6+ plus Braava M6
Roomba i6+ plus Braava M6

Cleaning Modes

One of the reasons why it can give a great result is because it offers different cleaning modes. One of the modes it offers is the corner and automatic. There is also a mode called shadow that can clean places like under the bed or furniture.

Roomba i6+ vs i7+
The Roomba i6+ is an Amazon exclusive model. After using it for a period of time, we can say that it is essentially just a cheaper Roomba i7+

Included Parts

The Roomba i6+ will come with a washable microfiber pad on the bottom part of the vacuum. With this pad, it enables the vacuum to clean on both hardwood and tile.

It will also come with a dust bin that is quite big, making it last for days, even weeks, without having to empty. So, for those with big houses and rooms, this is undoubtedly a great option.

iRobot Roomba i6+ (6550) Robot Vacuum with...
  • ABILITY TO GET SMARTER - Quality that lasts; Intelligence that grows; Equipped with advanced hardware capable...
  • LEARNS YOUR LIFE LISTENS TO YOUR VOICE - Learns your cleaning habits to offer up personalized schedules, while...
  • PICKS UP RIGHT WHERE IT LEFT OFF - Doesn t skip a beat, or a mess; When its running low on battery it...

Last update on 2024-06-25 / Affiliate links / Images from Amazon Product Advertising API

Roomba i4+ vs i6+ Comparison Table

3 Stage-Cleaning SystemPremiumPremium
Suction power10x*10x*
Cleaning patternNeat rowsNeat rows
RuntimeSmart charge & resumeSmart charge & resume
Intelligent navigation+ mapping+ Smart mapping
Navigates obstacles & stairsYes+ Visual navigation
Personalized cleaning recommendationsYes+ Custom Cleaning Options
Smart home connectivityYesYes
Tangle resistant rubber brushesYesYes
High-Efficiency FilterYesYes
Teams up with Braava jet m6 Robot MopYesYes
Self-emptying baseYesYes
Clean by specific rooms or objectsYesn/a
Clean Zones & Keep Out ZonesYesn/a
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*Compared to Roomba 600 Series AeroVoc System.

Roomba i7/i7+

Another great yet expensive option from iRobot is the i7 and i7+. Even though both offer almost the same features, they are offered at different prices. Here are some things you might want to know before buying them.

Self-Emptying Dust Bin

One of the great things about both the Roomba version is that is can self-empty its bin. It also has a slightly larger bin and capacity compared to the other versions. Therefore, even though it can empty itself, it won’t need to do it often.

Roomba i7+
Roomba i7+

Free from Animal Hairs

While most vacuum cleaners get tangled up with dog hairs in the machine or the bin, this will not happen to Roomba i7 or i7+. This is because the machine will head back to the dock and throw out any materials that are the potential to cause problems. Then, it will come back and start where it left off.

Roomba i7+ vs S9+
The Roomba i7+ has more features than any Roomba prior, but is slightly beat by the Roomba s9+.

Wicked Smart Navigation

One of the most wicked features on the Roomba i7 and i7+ is the navigation features. With this feature, users can tell it to go to a specific room. And you can pick as many rooms as you want for the house.

Last update on 2024-06-25 / Affiliate links / Images from Amazon Product Advertising API

Roomba i8+

The last version that is recommended to try is the Roomba i8. Just like the version before, the Roomba i8+ is pretty pricey. However, it also comes with advanced technology that will help your home task. What are they, and what can it do?

Mapping Sensors

Just like the i7+, the Roomba i8+ comes with smart navigation that can clean almost anywhere in the house. Other than just going to specific rooms, the vacuum is also supported by a camera. Therefore, users can see what kinds of dirt and dust that the vacuum is cleaning.

Roomba i8+
Roomba i8+

Battery Life

One of the great things about the Roomba i8+ is the battery capacity, 2210 mAh. It can clean up to 90 minutes non-stop before wandering back to its station. However, the con is it takes around 120 minutes to recharge it before going back to its task.


As an expensive machine, the Roomba i8+ is supported with high advanced sensors that will help prevent the machine from crashing or hitting things. It will automatically detect an object and prevent it from going to the object.

Roomba i7+ and i8+ Comparison Table

Main Differences

Clean Base11
Virtual Wall Barrierno1
Dirt Disposal Bags24
Extra High-Efficiency Filter12
Extra Side Brush1no

Suction Power 1700 Pa1700 Pa
Сleaning Area 1991 ft22153 ft2
Dust Container500 ml400 ml

Battery Capacity 1800 mAh2210 mAh
Runing time 75 min90 min
Charging Time 120 min120 min

Which is Best to Choose & Buy?

If you need a robot vacuum that can help clean your house with excellent results, then the Roomba i7 or i7+ is one of the best options, especially if you have a big house.

However, the cost is a bit expensive for a robot vacuum.

Roomba i7+
Roomba i7+

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On the other hand, for those who are looking for something cheaper but needs full features should choose the Roomba i3/i3+.

This is one of the most affordable yet most feature-packed robot vacuums in the Roomba lineup.

Roomba i3+
Roomba i3+

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Our Recommended Robot Vacuums

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