If you’re looking for a vacuum cleaner with smart features, both the Roomba i3 and i4 are excellent options. While they are similar in many ways, there have been some updates made on each model since they were first released in 2015. Here we’ll explore some of these differences, as well as similarities between these two products.

The Roomba i3

The Roomba i3 is the most advanced, connected, and intelligent robot vacuum. With Wi-Fi Connectivity, it’s compatible with the iRobot HOME App (requires a compatible smartphone or tablet) to clean your home while you’re out. It can even remember where it’s cleaned and automatically re-clean an area if you like!

With the iRobot HOME App, you can start, stop and schedule cleaning cycles from anywhere in the world. You can also see what Roomba’s cleaning, receive notifications about filter changes, and even chat with other owners of iRobots.

Features include:

– Advanced scheduling options that allow you to set up a weekly cleaning routine for your Roomba i3

– Cleaning history so you can see when Roomba last cleaned a room or area of the house

– Direct link to customer support so if there’s something wrong with your Roomba i3 or any other device in your home technology ecosystem, you can easily get answers.

The Roomba i4

The Roomba i4 is an automatic vacuum cleaner that uses a laser-guided bottom plate to clean your floors. The Roomba i4 is able to clean much faster than its competitors and can work on both carpeted and hardwood floors. It has a larger dustbin than previous models and can be charged using a dock or simply by pressing its power button.

The Roomba i4 is controlled using an app on your phone which allows you to schedule cleaning times and view cleaning history reports. These reports show you how often each room was cleaned, what time it took place, and what areas of the room were cleaned most often. You can also use these reports to identify problem areas in your home so that they can be cleaned more frequently or by using different settings on your Roomba (for example: turning off the edge cleaning feature).

One of my favorite features about the Roomba i4 is that it does not require any maintenance beyond emptying its dustbin every few days! This is something that I love because it means I don’t have to worry about replacing filters or washing out clothes every week as some other brands require me to!

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Roomba i3 vs i4 – Is There Even a Difference?

We’ve already established that the Roomba i4 is a more advanced model than the i3. So, let’s look at some of the differences between them in more detail.

  • The dustbin in the i4 is slightly larger than that of an i3. The benefit here is that you won’t need to empty it as often when using this model. 
  • The motor on this robot vacuum cleaner has been upgraded to provide more power than previous models like those found in an i3 or 2nd gen 650 series vacuums (read: less noise). This makes it easier for your robot cleaner to pick up dirt and grime from carpeted floors without clogging up with debris or overheating during use—all while being quieter than past iterations too! 
  • You’ll also find that this newer Roomba model lasts longer on a single charge than older models like those found within both earlier versions of their 300 series cleaners (read: less time spent charging). 
  • Another benefit worth mentioning here is how much quieter these new devices are compared to earlier versions such as those found within their 600 series robots (read: less noise pollution overall). This can help keep pets relaxed throughout cleaning cycles.”

Roomba i3 vs i4 – Are There any Similarities?

Logical navigation

Both the i3 and i4 have logical navigation even though neither has a camera.

Both the Roomba i3 and i4 have a logical navigation system. This is in contrast to many more expensive vacuum cleaners that use cameras to map out your floor plan before cleaning it.

Both of these models use a laser to detect walls and furniture, as well as a cliff sensor that automatically detects drop-offs such as stairs or landings.

The Roomba i3’s brush is designed to push dirt into its motorized suction while the Roomba i4 has two spinning brushes that also clean up hairballs on their own — no need for you to sweep first! Both models also include side brushes so they can clean along walls and edges where dust tends to build up over time.

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Recharge and resume feature.

The Roomba i3 and i4 both have the ability to recharge and resume cleaning. This means that if your robot vacuum gets stuck on something, it will stop and go back to the charging dock to recharge itself.

The next time you press start, it will continue where it left off.

No keep out zone feature

Neither the i3 nor the i4 has the “keep out zone” feature found in advanced Roombas.

The Virtual Wall feature on both models is similar to that of other Roomba models, however, it is not as advanced as some of the more recent Roomba 980 features.

Self-emptying “plus” version.

Both models of Roomba have two self-emptying bins: a standard one, and a “plus” version that can be emptied without pulling the whole device out.

Anti-tangle brush rolls.

The Roomba i3 and the Roomba i4 are both equipped with an anti-tangle brush roll. The motorized brush roll works to keep hair, pet fur, and other debris from wrapping around the drive system for your vacuum cleaner. It also helps maintain suction power by keeping these items out of the way of your vacuum’s airflow. Both cleaners also have HEPA filtration systems that trap allergens like mold spores, bacteria and pet dander before they can escape into the air you breathe in your home. The filters are easy to clean and replace when necessary so you don’t have to worry about them getting clogged up quickly or losing effectiveness over time.

Frequently Asked Questions

Is the Roomba i3 good for pet hair?

Yes, but it’s not perfect. The Roomba i3 is a good choice if you own pets that shed a lot and need help cleaning up after them—but it won’t give you 100% coverage on its own. If your pet has mats or long fur, consider investing in a vacuum that specializes in this type of cleaning (like the Dyson Ball Multi Floor 2).

How noisy is the Roomba i3?

The Roomba i3 has an average noise level of 78 decibels when operating at full power and around 70 decibels when operating at half power. To put these numbers into context, we compared them to other appliances: 70 decibels is about as loud as normal conversation; 80 decibels is similar to an active desk fan; 85 decibels is comparable to an electric drill being used two feet away from where you’re sitting; 95 decibels sounds like someone playing drums next door (and would be painful after just 30 seconds); 100+ decibels are approaching what most people consider unpleasant noise levels.

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How much does the Roomba i3 cost?

The Roomba i3 is available on Amazon for $599.99 with free shipping within the United States. It can also be purchased directly from iRobot’s official website in either a black or white color scheme.

How much does the Roomba i3 weigh?

The Roomba i3 weighs 13.5 pounds, making it one of the lightest vacuums on the market. Its size is also very small (11 x 11 inches). The Roomba S9+ weighs a whopping 19 pounds. This is larger than some of the other models in its price range

What are some of the other features?

The Roomba i3 has all of the same features as its predecessor (the S9+): it can clean up to seven rooms without having to be recharged and comes with an app that allows you to schedule times when you want it started automatically. The Roomba 980 is also compatible with Alexa, so if you have an Echo or Google home device then using voice commands is possible too!

The Roomba i3 is available on Amazon for $599.99 with free shipping within the United States. It can also be purchased directly from iRobot’s official website in either a black or white color scheme

The Roomba i3 weighs 13.5 pounds, making it one of the lightest vacuums on the market.


There are a lot of similarities between the Roomba i3 and i4. In fact, almost all the differences are negligible. Overall though, I would say that if you want an affordable vacuum that will do an excellent job at cleaning your floors then either one of these machines will work well for you.