Roomba i vs j vs s Series Robot Vacuums: i3+ vs j7+ vs s9+ Compared

As the leader of the robot vacuum cleaner pack, you really can’t go wrong when choosing any modern-day Roomba. However, with comparing three highly competitive Roombas—the i3+, the j7+, and the s9+–how do you determine which one deserves your love the most? Find out after reading our brief comparison of these three top-tier Roombas.

Roomba i vs j vs s Series


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iRobot Roomba i3+

While iRobot doesn’t make the Roomba i3+’s Pa rating easy to find, the company claims that it’s 10 times more powerful than the Roomba 600 series, which is actually quite a lot. Not only does it offer extraordinary suction power, but it does a fantastic job at picking up messes of all kinds, thanks to the help of its multi-surface rubber brush roll.

iRobot Roomba i3+ (3550) Robot Vacuum
iRobot Roomba i3+ (3550) Robot Vacuum

The brush doesn’t just pull debris in; it also extracts embedded animal and human hair from carpet fibers without the slightest indication of tangling.

Something you’ll be happy to know about the i3+, as well as the j7+ and s9+ models, is that it comes with Reactive Sensors. These sensors constantly scan its surroundings to help the i3+ determine whether it can or cannot travel to certain parts of your home. For instance, it’ll know not to lodge itself between two adjacent pieces of furniture.

Roomba i vs j vs s Series Robot Vacuums

Another feature that you’ll find in all three Roombas is its self-emptying base. The base suctions debris out of the robots, thereby leaving their dustbins completely empty and ready for subsequent vacuuming sessions. All of their self-emptying bases can store up to 60 days’ worth of debris at max.

iRobot Roomba i3+ Intro Video

iRobot Roomba i3+ (3550) Robot Vacuum with...
  • EMPTIES ON ITS OWN - Forget about vacuuming for months at a time with the Clean Base Automatic Dirt Disposal...
  • A CLEAN UNIQUE TO YOU - Take vacuuming off your mind with Roomba i3+ Robot Vacuum’s personalized cleaning...
  • CLEAN WHEN YOU'RE AWAY - Now with iRobot Genius, you can choose to set your robot to start cleaning when you...

Last update on 2021-12-04 / Affiliate links / Images from Amazon Product Advertising API

iRobot Roomba j7+

What we know about the iRobot Roomba j7+ in terms of suction power is that it produces only about 1800 Pa at max. Now, this might not be so impressive, especially considering that the s9+ outputs an estimated 2500 Pa on Carpet Boost mode.

However, for the most part, 1800 Pa is the bare minimum to remove more than surface debris from carpets, let alone on ceramic tiles and floorboards. It also boosts the same Carpet Boost technology as the s9+ to make vacuuming carpets even more efficient.

iRobot Roomba j7+ Self-Emptying Robot Vacuum
iRobot Roomba j7+ Self-Emptying Robot Vacuum

Like the other Roombas in this comparison, the j7+ can store multiple floorplans, allowing it to immediately commence cleaning in different stories of your home. Simply set it down on any floor, and it’ll immediately recognize its surroundings and pull out the relevant map. The j7+ can store up to four floorplans.

One thing that separates the iRobot Roomba j7+ from the other Roombas is P.O.O.P. We’re not trying to be funny; this is iRobot’s Pet Owner Official Promise, which states that if the j7+ steps into solid animal waste, the company will replace your j7+ completely free of charge. It’s so confident in the robot’s built-in camera to detect animal poop and avoid it that iRobot is willing to put its money where its mouth is. Now, that’s bold!

iRobot Roomba j7+ Robot Vacuum

Another bold feature, at least in our opinion, is how all three of these robots will pick up on your habits over time. They keep track of how often you run them, when you run them, and which parts of your home you clean most frequently. In addition, they’ll offer helpful suggestions, such as increasing vacuuming frequency during allergy season.

Roomba j7+ Intro Video

iRobot Roomba j7+ (7550) Self-Emptying Robot...
  • THE WORLD'S SMARTEST CLEANING ROBOTS JUST GOT SMARTER... AND THAT'S GENIUS - iRobot Genius powers your robot...
  • AVOIDS PET ACCIDENTS ON PURPOSE – WE GUARANTEE IT - Only iRobot brings you P.O.O.P. (Pet Owner Official...
  • NO NEED TO PICK UP BEFORE YOU CLEAN - The Roomba j7+ robot vacuum uses iRobot Genius Technology and...

Last update on 2021-12-04 / Affiliate links / Images from Amazon Product Advertising API

Related Post: iRobot Roomba i7+ vs j7+

iRobot Roomba s9+

Lastly, we have the iRobot Roomba s9+, which is the most powerful Roomba of the three in this comparison. We’ve spoken about how much more suction power it delivers than the j7+, which is already more than the i3+, so let’s skip to the juicy stuff.

iRobot Roomba s9+ (9550) Robot Vacuum
iRobot Roomba s9+ (9550) Robot Vacuum

For instance, did you know that the s9+ comes with PerfectEdge Technology? A series of sensors keep tabs of where a wall is relative to the robot’s position in order to direct its Corner Brush along baseboards for enhanced edge cleaning. The fact that the brushes are 30% wider than older Roombas helps it get into edges and corners a lot more effectively.

The s9+ comes with an improved navigation system as opposed to the i3+. With vSLAM, the s9+ learns the layout of your home in just a single pass before creating the most efficient cleaning route possible. Like the j7+, this robot can detect newly made messes and will jump off its programmed trajectory to clean off-to-the-side dirt piles up before going back to work.

iRobot Roomba s9+ (9550) Robot Vacuum

Something we haven’t mentioned until now is that all three of these Roombas can form a tag-team duo with the iRobot Braava jet m6 (sold separately or in a bundle). The jet m6 is a mop-only bot that can commence its mopping cycle as soon as any of these Roombas is done. This tag-team partnership makes up for the fact that none of these Roombas are hybrid models.

iRobot Roomba s9+ (9550) Robot Vacuum with...
  • CLEANS UP AFTER YOU, AND ITSELF - Forget about vacuuming for months at a time with the Clean Base Automatic...
  • OUR MOST ADVANCED CLEAN - You—and your home—deserve the best. With groundbreaking technology and a...
  • DEEPEST CLEAN - With 40x the suction power, the superior 3-Stage Cleaning System lifts, loosens, then...

Last update on 2021-12-04 / Affiliate links / Images from Amazon Product Advertising API

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Empties on its own - you don’t have to think about vacuuming for months at a time. Clean Base Automatic Dirt Disposal with AllergenLock bag holds 60 days of dirt, dust and hair. Intelligently maps and cleans an entire level of your home.
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Last update on 2021-12-04 / Affiliate links / Images from Amazon Product Advertising API


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About the author

Hi I’m Alexander, founder of HouseholdMe.com and I’d like to say thank you for dropping by. Like most of you, the first thing I look at before buying something online is reviews or buying guides. By reading what other people say will help me gauge whether or not a product is good or not.  I am trying to help people find answers, solve problems, and get inspired.

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