Roomba s9+ Features & Specs- A Detailed Review in 2024

Last updated on February 15th, 2024

The Roomba s9+ is iRobot’s latest vacuum cleaner designed with a unique shape to tackle corners and edges. The s9 models are the first-ever Roombas you will see in a D shape. With several new additions and improvements to the already existing technologies, iRobot has made a powerful smart vacuum.

It is capable of handling the trickiest spots that robot vacuums have been known to miss. Let’s dig a bit deeper into this robust vacuum and find out if it’s really worth the high price.

Roomba s9+
Roomba s9+

Our Roomba s9+ review for 2024

The Roomba s9+ has the highest suction power of all the previous models. It has a unique D shape, a 5-pronged side brush, and high power to deliver the best cleaning experience from a robovac. Its battery is a bit less than expected, but the recharge and resume feature eliminates the downside associated with it.

Roomba s9+ Specifications

Specifications of Roomba S9+
Specifications of Roomba s9+

The following table includes the specs of the top-of-the-class vacuum cleaner:

SpecsRoomba s9+
Dimensions12.25 x 12.25 x 3.5 inches
Weight8.15 Pounds
ColorCharcoal Grey with Copper
ShapeD Shape
Dustbin Capacity0.5 L
Suction Power40x*
Airflow25 CFM
Battery Capacity3300 mAh
Runtime50 – 120 mins
Noise level77 dB
Warranty1 year
Specifications of Roomba s9+

* indicates comparison to the 600 series.

Steps to set up the Roomba s9+

Setting up this robot requires you to go through the same produce you will carry out to set up any model from this company.

Step 1: Find an appropriate location for the docking station.

Step 2: Completely charge the robot.

Step 3: Download the iRobot Home App.

Step 4: Connect your s9+ to the iRobot App.

Step 5: Pair the s9+ with voice assistants like Amazon Alexa or Google Home.

And that is how you get all set to use the new vacuum.

Features of Roomba s9+

Let’s go into the details of this robovac to find out if it is really as good as they say it is.


The Roomba s9+ comes in a large black cardboard box. It is bigger than you would expect with most vacuum cleaners. And the credit for that goes to the tall Clean Base docking station that comes with the s9+. Inside the main box, you will find a small box that has neat compartments for all accessories so that they don’t rub against each other.

Then there’s the vacuum itself and the tall docking station sitting at the bottom. The robot is placed on the docking station itself. We find it kind of symbolic to show you how exactly it is done. Both the dock and the vacuum are wrapped in neat covers to avoid any scratches during transit.


Top view

Top view of Roomba s9+
Top view of Roomba s9+

You will have never seen such a design in a Roomba before. The s9+ embodies a D shape, all thanks to the PerfectEdge technology. It will capture dust in corners and edges more effectively. There’s a copper-colored circle at the center of the D with the iRobot’s logo. The backlight around this circle gives the vacuum a modern look.

Unlike previous models, this one doesn’t have its buttons in the center. They are located at one of the corners of the D. The Clean button is a bit bigger than the two Spot and Home buttons. The s9+ has its camera on the top, unlike the Roomba j7+, which has a front-mounted camera. The camera is located in the center of the curve of the D.

Bottom view

Bottom view of Roomba S9+
Bottom view of Roomba S9+

In the new design of the s9+, the dual multi-surface rubber main brushes are placed in front of the vacuum. They are no longer placed between the two wheels, like in older models, including the Roomba i3+ Evo.

They get to be longer – a whopping 30% longer. Because of this, you get a wider cleaning path. This results in the reduction of time of a cleaning cycle. They even encounter less tangling of hair.

The s9+ has a specially designed edge-sweeping brush with 5 prongs. Previous models traditionally had 3 pronged designs for the side brushes of all models. The bristles are also shorter. It is programmed to spin slower than the previous models, like the Roomba i7+, so that it won’t scatter as much dust. The dirt disposal port is also located at the center instead of the usual backside of the vacuum.


Dustbin used in s9+
Dustbin used in s9+

The second best part of this product is its automatic dirt disposal system. The first still remains its excellent cleaning capability. The s9+ has an onboard dustbin of 0.5 L, which is pretty big. It can hold debris for up to 2 cleaning cycles without the need to empty it. This ensures less time spent running back to the dock to empty its contents and more spent on cleaning.

You will find a large dirt disposal bag in the docking station that holds all the waste from the cleaning cycles. This bag has an anti-allergen system, which traps 99% of pollen, mites, and other allergens. This bag is good for holding debris for up to 60 days. This takes the vacuum trash off your mind for months.

Where is the dustbin of Roomba s9+?

The Roomba s9+ has a top-mounted dustbin. There is a flap in the center of the vacuum that opens to display the dustbin. It is fitted in a neat slot right in the center. There’s a handle to pick it up from the slot in case you want to clean it or empty it manually for some reason.

How much time can the Roomba s9+ run for?

Since this is the top model from iRobot, you would expect an excellent battery life, But that is not the case. It has a mere 3300 mAh Lithium Ion battery. This takes around 3 hours for a complete charge.

You don’t have to worry about charging because of the s9+’s recharge and resume feature. When running low on battery, it will head back to the docking station to charge and, when done charging, will resume cleaning from the spot where it left off.

The actual runtime depends on the mode you are using it on. It has two defined modes – one with low power and the other with high.

  • On the low power mode, the s9+ typically lasts for 100 to 120 minutes.
  • But on high power mode, it will not last more than 45 to 50 minutes.

Note: It has a powerful motor that consumes a lot of power, which gives a significantly less runtime in spite of the average battery capacity.

How is the navigation of Roomba s9+?

The navigation on the Roomba s9+ is good but not exceptional. It gets stuck less often and manages to clean around obstacles adequately.


Roomba s9+ navigating the floor
Roomba s9+ navigating the floor

Truth be told, the navigation on the s9+ is very similar to the i7+. It uses visual Simultaneous Localization And Mapping (vSLAM) technology in combination with its top-mounted camera and an optical sensor on the bottom. It switches easily from surface to surface, but sometimes, it can fold up light carpeting like doormats.


Mapping technology of Roomba
Mapping technology of s9+

It creates a very accurate map of your home in 2 to 3 runs. The iRobot app for this model can store as many as 10 floor plans. So it is an excellent choice if you have a multi-story house. Unfortunately, the s9+ does not have a live map to locate where exactly it is cleaning.

Obstacle detection

The s9+ has a Careful Drive Mode, where it tracks obstacles in real-time and glides around them. But its obstacle recognition abilities are nothing near to the Roomba j7+. It does tend to get stuck in clothes and wires if they are lying around the floor.

Cleaning Performance

Roomba S9+ cleaning the floor
Roomba s9+ cleaning the floor

The Roomba s9+ has taken vacuuming to the next level. It gives the best performance of all the previous models. All thanks to the 40x suction power compared to the 600 series. Thus, it eliminates debris and pet hair from deep within your carpets.

We have already discussed that the s9+ operates in two power modes – Detailed Clean and Quiet Clean. We recommend using the high-power mode on your carpets because it gives an airflow of as high as 25 CFM. But in low power mode, it is around 8 CFM.

The Dirt Detect technology also plays a major role in giving a targeted cleaning experience. It cleans more effectively on spots with more volume of debris. But it fails to clean the threshold where the carpets meet the floors.

How to operate the Roomba s9+?

iRobot app on iOS
iRobot app on iOS

Using the Roomba s9+ has become simpler than ever with the voice prompts and remote control via the mobile app.

Voice Prompts

If your home is connected to any voice assistant like Amazon Alexa or Google Home, you can use it to command your s9+. After you add it as a recognizable device on your assistant, you can simply give voice prompts like ‘Ask (robot name) to clean the dining area at 11 am’. Your assistant will make sure that the robot receives the command to start cleaning at exactly 11 am.

Mobile App

The iRobot Home app gives you an opportunity to control your vacuum from anywhere in the world. While sitting in your office, you can ask the robovac to clean your home, but keep out of the kitchen. We love how we can schedule cleanings beforehand.

If you also use a robot mop to mop your floors, then you will love iRobot’s Imprint Link technology. With this, you can pair your vacuum with the mopping bot so that they will work in sync with each other. The mopping will start once vacuuming is done in a particular area. This lessens your task of giving separate commands to the smart mop.

App Features

The iRobot Home app for s9+ also has top-of-the-class features. New and latest tech updates and groundbreaking features keep rolling in continuously with the iRobot OS software updates. With the app, you can:

  • Schedule daily or weekly cleanings
  • Ask (robot name) to start cleaning when you leave and stop when you are home
  • View a smart map of your home
  • Mark Keep Out zones and Clean Zones
  • Check the cleaning history
  • Adjust other robot settings like suction power and cleaning mode
  • Get help if you encounter a problem
  • Find a lost robot

List of items present with the vacuum

On purchasing this product, you get the following items in the box:

  • 1 iRobot Roomba s9+ Robot Vacuum
  • 1 Clean Base Automatic Dirt Disposal
  • 2 Dirt Disposal Bags
  • 1 North American Line Cord
  • 1 Extra High-Efficiency Filter
  • 1 Extra Corner Brush

Where to buy the Roomba s9+?

The Roomba s9+ price is $999.99 on iRobot’s official website. But Home Depot is selling it for a few bucks less at $966.86. But if you want to get a real deal, then opt to buy the s9+ at Best Buy for $889.99, Target for $899.00, or for $889.97 at Walmart.

You can also buy refurbished models from $840.07 and above on Amazon.


You will need to take care of the brushes, battery, sensors, filters, and some other sections to keep your vacuum in good condition. Below are some tips that you can follow.

Brush Maintenance

Inspect the brush rolls for tangles of hair after each cleaning cycle. Use a cleaning tool to remove any debris or hair entangled around the brushes. Replace the brushes if they are damaged or look worn from use.

Battery Upkeep

If you won’t be using the s9+ for an extended period, remove it from the charging dock. Avoid exposing the battery to extreme temperatures or prolonged exposure to direct sunlight.

Sensor Care

Regularly clean all the sensors on the vacuum. Use a soft microfiber cloth to remove any dust or debris that could hinder their performance.

Filter Maintenance

This robot is equipped with a high-efficiency filter that should be cleaned regularly based on your frequency of use. It is recommended to replace the filter every few months.

Charging Contacts

Frequently clean the charging contacts on both the robot and the charging dock. Use a microfiber cloth to eliminate any dust. Always ensure that the charging contacts are clean, shiny, and free from any impurities.

Pro and Cons

The following table shows the pros and cons of purchasing this product:

Improved designExpensive
More suction powerSmall battery capacity
Superior cleaningVery loud in high power
PerfectEdge technologyPoor obstacle avoidance
Pros and Cons of Roomba s9+


It’s difficult to find the same performance that the Roomba s9+ can deliver. Even the Neato Botvac D7 Connected has a similar D shape and cannot clean better than the s9+. It’s because of the high suction power combined with the longer brush rolls of the Roomba.

The crazy expensive tag on the vacuum makes it unaffordable to many. But if you can chip in the amount, there’s no better Roomba. You might want to steer clear if you are sensitive to loud noises because this one tends to make a lot.


Is Roomba s9+ loud?

Yes, the Roomba s9+ can get very loud, especially in its high-power mode. Users have recorded a noise level as high as 77 dB, which is pretty loud for a vacuum cleaner.

When was the Roomba s9+ invented?

The Roomba s9+ was first introduced in May 2019.

Is Roomba i7+ or s9+ better?

The Roomba s9+ is a better vacuum cleaner as it has all the features of the i7+ plus the higher suction power and subsequent better cleaning performance.

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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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