Roomba e5 vs. i3 Differences: Which one to buy?

Last updated on April 15th, 2024

The Roomba e5 and Roomba i3 are robot vacuums from two different series of iRobot. Currently, both of them are available at almost the same price. If that is the case, then which one should you buy? Should you choose the Roomba e5 for its old-school navigation system or the Roomba i3 for its excellent cleaning performance? Read along to find out.

Check out: Roomba e5 vs. e6 – Are they Different?

Which is better: Roomba e5 vs. i3?

Without a doubt, the Roomba i3 is the better option. It has a bunch of additional features, which you get at the same price as the Roomba e5. The best part is that it has 5 times more suction power than the Roomba e5. The navigation system of Roomba i3 is also far better. And unlike the Roomba e5, you don’t have to worry about charging the Roomba i3 because it has the recharge and resume feature.

Roomba e5

Roomba e5
Roomba e5

The Roomba e5 belongs to the e series by iRobot. The e series is well known for its efficiency in picking up small pet hair. It first came on the market in 2018. It is currently not sold by iRobot, but you can get a refurbished model online. Roomba e5 is one of the best mid-range vacuum robots. It has an excellent runtime of 90 minutes with just 3 hours of charging.

Roomba i3

Roomba i3
Roomba i3

The Roomba i3 was launched by iRobot in 2020 as a part of its i series. The i series has now produced several great models like the i7+, but the Roomba i3 still remains a favorite choice for many people because it offers great features at a low price.

It is equipped with a smart navigation system, which is better at cleaning in a mannered pattern than the Roomba e5. Roomba i3 is smart enough to auto-recharge itself and head back to the clean from where it left off.

Roomba e5 vs. i3 Specifications

Specification of Roomba e5 vs i3
Specification of Roomba e5 vs. i3

The table below compares the Roomba e5 and Roomba i3.

Roomba SpecsRoomba e5Roomba i3
Weight7.2 Pounds7.2 Pounds
Dimensions13.3 x 13.3 x 3.6 inches13.3 x 13.3 x 3.6 inches
ColorBlackGrey with Black
Surface RecommendationCarpets,
Hard Floors
Hard Floors
Carrying HandlePresentAbsent
Filter TypeHEPA FilterHEPA Filter
Dustbin Capacity0.5 L0.5 L
Suction Power5x*10x*
Control TypeVoice, AppVoice, App
Compatible DevicesAmazon Alexa,
Google Assistant
Amazon Alexa,
Google Assistant
Airflow8 CFM8 CFM
Runtime90 mins75 mins
Battery Capacity1800 mAh1800 mAh
Charging Time3 hours3 hours
Battery TypeLithium IonLithium Ion
BrushesDual Multi-Surface Brushes,
Edge-Sweeping Brush
Dual Multi-Surface Brushes,
Edge-Sweeping Brush
HEPA FilterPresentPresent
iAdapt 1.0 NavigationPresentAbsent
Smart NavigationAbsentPresent
Dirt Detection TechnologyPresentPresent
Cliff SensorPresentPresent
Personalized Cleaning RecommendationsAbsentPresent
Warranty1 year1 year
Roomba e5 vs. i3 Comparison

* Represents a comparison with the Roomba 600 series.

Let’s discuss in detail how the Roomba e5 is different from the Roomba i3.

Price Comparison

iRobot is currently not selling any of these models on its official website. But you can buy them from e-commerce websites like Amazon, eBay, etc. Here, the models you will find are refurbished or new but slightly used.

Talking about the price, you will have to go through several websites to look for the cheapest option. As far as our research goes, both these models are available in pretty much the same price range. Only going through multiple e-commerce websites can get you the best deal.

Roomba e5 vs. i3 design

You can clearly distinguish the Roomba i3 from the Roomba e5. The Roomba i3 comes in a Grey color with a black ring around its circumference. But the Roomba e5 is completely Black in color. Also, the Roomba e5 has a carrying handle in the center, which is absent in the Roomba e3.

Note: An interesting addition to the i3 is that it is compatible with a self-emptying base. It has a hole at the bottom for emptying the dustbin. You can easily upgrade the i3 to i3+ by purchasing the self-emptying Clean base. This feature is not available for the Roomba e5.

Which one of these robots has a better navigation system?

The navigation system of the Roomba e5 is pretty basic. It doesn’t follow a fixed path for cleaning. It usually bumps into obstacles and moves away from them. This method of navigation gets the job done, but it is not as efficient as the Roomba i3’s smart navigation system.

The Roomba i3 first determines what the best path forward will be and then follows it. You will see it cleaning in pretty much straight lines until it covers the entire region. This leads to less random bumping into furniture or other obstacles.

We recommend getting the Roomba i3 for its smart navigation.

Which one gives a better cleaning performance?

If you compare the cleaning performance of Roomba i3 and Roomba e5, you won’t find much of a difference. But when it comes to high-rise carpets, the better suction power of the Roomba i3 comes in handy. Besides that, both models give similar cleaning experiences.

Battery capacity: Roomba e5 vs. i3

Both Roomba i3 and Roomba e5 have lithium-ion batteries with 1800 mAh capacity, which takes around 3 hours to charge. In spite of that, the Roomba e5 has a higher runtime of 90 minutes. The Roomba i3 manages to clean only for 75 minutes.

But the Roomba i3 has the recharge and resume feature. With this feature, when the Roomba i3 is low on power, it automatically heads to the docking station to recharge. Once it’s completely charged, it heads back to the position where it last stopped cleaning and resumes cleaning from there.

But that’s not the case with Roomba e5. It starts cleaning right from the docking station. It is not able to remember the location where it left off.

Advantages of Roomba e5 and i3

Advantages of Roomba e5 vs Roomba i3
Advantages of Roomba e5 vs. Roomba i3

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

Roomba e5 AdvantagesRoomba i3 Advantages
Better RuntimeMapping feature
Good for pet hairRow-by-row cleaning
Recharge and resume
Compatible with self-emptying base
Better Suction power
Advantages of Roomba e5 and i3


The Roomba i3 has a better cleaning performance because of its high suction power. It also navigates better than the Roomba i3. Its compatibility with the self-emptying Clean Base is another great point for preferring the Roomba i3. But the biggest point is the price. You get all these extra features at the same price as the Roomba e5. Then there’s no point in choosing the Roomba e5.


Is Roomba i3 good for carpets?

Yes, Roomba i3 is very good at cleaning carpets as well as hard floors.

Does Roomba e5 have mapping?

The Roomba e5 does not have the mapping feature. But it has a camera it uses to travel randomly around your home.

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Mark Thompson

Hi I am Mark, the founder of Smart Home Bulls. Having spent 5 years immersed in the intricacies of smart home gadgets at a leading tech company, I decided to chart my own course side by side along with the job. Enter Smart Home Bulls – the result of my desire to simplify the smart living experience.

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