irobot i7 Plus VS S9 Plus: Which should you buy?

irobot i7 Plus VS S9 Plus Which should you buy in depth comparison

The fast-paced life of the 21st century means we no longer have time to meticulously clean our floors and carpets as much as we would like. After all, don’t we all want a lovely clean house to come home to every day? It’s time to stop looking at the spring cleaning hacks and start looking at longer-term solutions. Robot vacuum cleaners are nothing new, but the continued advancement that each model sees is outstanding. Today we are looking at two of the best, the iRobot i7 plus vs s9 plus.

We will help you decide which iRobot Roomba Robot Vacuum Cleaner is the right one for you as we take a close look at the Roomba i7 plus and s9 plus. Both of these boast exceptional qualities, including automatic dirt disposal, that make cleaning not only comfortable but quick and possible just from the touch of your phone.

iRobot i7 Plus vs s9 Plus: The quick verdict 

The two vacuum cleaners are an icon of automation and a step into the newest technological world. The question I’ll quickly try to answer here is which one would I choose?

While both offer exceptional cleaning performance, if the extra money is not a problem, then s9 plus would be my choice. It’s the four times greater suction power and extra sensors that swing it. And in all honesty. I love the new body style, it really makes it look a bit different and helps to reach all the dirty corners!

If you are ready to spend some money, then this robotic vacuum cleaner is currently one of the best on the market! 

That said, if you can’t spare the few hundred extra dollars for the S9, I do feel that the i7 plus still offers amazing cleaning. It holds a place on our list of best robotic vacuum cleaners and is one of the top self-emptying robot vacuums. When comparing the i7 Plus vs s9 Plus, I feel you are getting better value for money with the i7 Plus.

Robot Overviews

iRobot Roomba S9 Plus

The first striking difference between the two models is the new D-shape body style of the Roomba s9 plus, unlike our traditional spherical Roomba’s this one has a unique shape which serves a purpose.

The frontal part of the advanced robot vacuum is circular while the other side is completely flat. This is more than just a stylistic change. The new shape makes it easier for the S9 Plus to align against walls and reach edges that were never possible with the circular shape of i7 plus. 

Not only is the look different from its predecessor but the sleek design and copper-colored lid which lights up when the machine is charging or emptying itself make it much more stylish and sturdier! 

On the inside, the S9 Plus rocks an amazing internal dust bin capacity, at 550 ml which is the largest you’ll find in any Roomba. This has also been managed while shrinking the device compared to its predecessor, measuring only 12.3 inches in diameter and 3.5 inches tall, the previous model was 13.4-by-3.7-inch. Again providing it with the opportunity to reach areas that may have been previously unreachable. 

The latest model has been thoroughly built from the ground up rather than minor tweaks, not only externally but internally too. Just flip this bot over, and you’ll see multiple enhancements. A better and more powerful cleaning head positioned further forward in the chassis. A vacuum motor which is 40 times as powerful as the previous models definitely making it the best one in the market till now. 

This huge suction power and spinning brush roll allows it to work more effectively on carpets and the new dirt detection sensor helps the robotic vacuum cleaner automatically increase its suction power in areas with greater dirt and debris.  

Then comes the charging base, self-emptying dirt disposal and charging are both done here like the previous models; nonetheless, many users claim that there is not much difference in the performance of the i7 plus clean base and this one.

iRobot, on the other hand, claims that the new s9 plus clean base provides a better connection between the bot and itself essentially capturing 99% allergen and pollen in the bag that may have escaped previously during the transfer.

Each bag holds dirt and debris for at least 30 full roomba loads. However, the self-emptying technology does require an ongoing investment as you have to buy compatible bages priced at $15 for three bags.

Sale
iRobot Roomba s9+ (9550) Robot Vacuum with Automatic Dirt Disposal- Empties itself, Wi-Fi Connected,...
  • The World's Best Robot Vacuum: Empties on its own, Clean Base Automatic Dirt Disposal holds dirt, dust and hair. Anti-Allergen System with AllergenLock Bags captures and traps 99% of pollen and mold...

Last update on 2020-05-20 / Affiliate links / Images from Amazon Product Advertising API

iRobot Roomba i7 Plus

Moving on to the iRobot Roomba i7 plus, this model also has a self-emptying technology. In terms of shape and size, there wasn’t any reinvention seen in this model. The top hood has some buttons which all show different colored lights when doing their job, connecting to the Wi-Fi and charging.

Turn the robot cleaner upside down, and you’ll see what goes on in this one. A side brush, dual rubber rollers, two main treads, drop sensors, and the dustbin can be seen on the bottom. The dustbin has a small door that connects to the automatic dirt disposal Clean Base.

If you want to know more about this model, read our full Roomba i7 Plus review.

I’m sure you must be having a hard time distinguishing the two by now, but we shall get into them after this and highlight for you the difference and their benefits!

Sale
iRobot Roomba i7+ (7550) Robot Vacuum with Automatic Dirt Disposal-Empties Itself, Wi-Fi Connected,...
  • 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.

Last update on 2020-05-17 / Affiliate links / Images from Amazon Product Advertising API

Further details

Setup, App and Voice Control 

Setting up is rather easy in both models. For both of them first, you have to download the iRobot mobile app which is available on both Android and iOS and register an account. 

After doing this select your model, press the home and spot clean buttons both until you hear a beep on the s9 plus and for i7 plus the LED ring light around the button will get blue. Both models can easily work with Alexa and Google Assistant voice commands via their apps. 

iRobot Roomba i7+ (7550) Robot Vacuum with Automatic Dirt Disposal-Empties Itself, Wi-Fi Connected,...

There is not much difference in the app for both of them, the front page is minimalistic with the display of battery level, a clean button to start and stop vacuuming. While the bottom of the screen shows tabs for Schedule, History, Smart Maps, Help, and Settings.

We do love that both use iRobot’s imprint link technology. what this means is that if you have a couple of iRobot appliances, you can link their cleaning. So for example, run you vacuum and have your mop start right after.

Schedule will allow you to make a time table for the cleaning time, history will show the a log of previous cleanings while smart maps may take two or three rounds of the house to develop its in house map which makes it easy for you to assign cleaning. 

The Smart Maps update was first seen in the i7+ where the machine was designed to learn the layout of your house and customize its cleaning. After testing, it took at least 4 one hour sessions of cleaning for the bot to memorize the layout of the 2 rooms. The new update also allowed you to label rooms and schedule them for cleaning at different times. 

iRobot Roomba i7+ (7550) Robot Vacuum with Automatic Dirt Disposal-Empties Itself, Wi-Fi Connected,...

Performance 

When it comes to overall performance the s9 plus is outstanding! It rarely requires any manual intervention and while it does work it carefully makes it way around the furniture of the house cleaning everything! 

The best part about this model is the suction power which is not only the greatest but adjusts according to the need of the hour. The more the dirt the higher the suction power. It can’t get any easier than this; once done, it goes on to the clean base to empty itself without needing any manual assistance.

However, a major downside is the amount of noise it makes so if you’re Netflix and chilling be sure to turn up the volume really high if you want to enjoy your show; although the noise is justifiable with the huge suction power. 

The i7 plus on the other hand, was also able to handle different types of floors and manoeuvre its way around the furniture after some sessions of learning. It only lacks a D-shaped body which can’t easily clean the edges and corners which tend to accumulate dust. Other than that it’s pretty much the same in making noise and emptying itself. 

Both pack a hepa filter to ensure that dirt, pollen and other micro-agents are being trapped rather than recirculated in the air.

iRobot Roomba s9+ (9550) Robot Vacuum with Automatic Dirt Disposal- Empties itself, Wi-Fi Connected,...

Charging and Run time 

Both models do not require you to manually pick them up and dock them for charging; they are smart enough to find their charging station!

As far as the run time is concerned, the Roomba s9 plus boasts a run time of at least 120 minutes while the i7 plus rests at only 75 minutes. But for many users, the run time tends not to be a problem because the machine charges itself and gets back to work. 

Smart Mapping 

Imprint smart mapping technology was introduced in the i7 plus. They have the same navigation technology called the “Imprint Mapping Technology”. What this does is that it allows us to navigate through the house and save these maps into the iCloud servers.

This is one of my favorite functions till date in these robots, not only does this make scheduling cleaning easy, but you can easily command it to clean specific rooms at a time. 

irobot i7 Plus VS S9 Plus: Key Differences 

This section will help you make the decision you’ve wanted to make! 

iRobot Roomba S9 Plus
iRobot Roomba i7 Plus
iRobot Roomba s9+ (9550) Robot Vacuum with Automatic Dirt Disposal- Empties itself, Wi-Fi Connected,...
iRobot Roomba i7+ (7550) Robot Vacuum with Automatic Dirt Disposal-Empties Itself, Wi-Fi Connected,...
Shape
The D shape allows better edge vacuuming and cleaner corners.
The circular shape is unable to reach delicate edges and dirty corners.
Suction Power
40 times more power, high capability of gathering all the dust embellished in carpets.
10 times suction power, wouldn’t be as effective on the carpets and areas of high dirt intensity.
Bin Capacity
A smaller 13-ounce bin
A 16 ounce bigger bin!
Primary Brush Roll
A similar multi-surface brush roll which is a little longer
Multi-surface brush rolls almost the same the s9 plus.
Weight and Dimensions
The thinnest one till date! Only 3.5 inches high; however, it is a little heavier at 8.15 lbs.
3.7 inches tall with a minute difference of 0.2 inches; moreover it weighs lesser at just 7.45 lbs.
Run time
120 Minutes
75 Minutes
Anti-Allergen Seal
This model has been completely sealed to ensure no captures allergens can escape.
No Seal present to prevent the escape of any pollen or allergens.
Power
22 CFM
17 CFM
Deep Cleaning
94.5%
79%
Warranty
1 Year
1 Year
-
$1,099.99
$799.99
iRobot Roomba S9 Plus
iRobot Roomba s9+ (9550) Robot Vacuum with Automatic Dirt Disposal- Empties itself, Wi-Fi Connected,...
Shape
The D shape allows better edge vacuuming and cleaner corners.
Suction Power
40 times more power, high capability of gathering all the dust embellished in carpets.
Bin Capacity
A smaller 13-ounce bin
Primary Brush Roll
A similar multi-surface brush roll which is a little longer
Weight and Dimensions
The thinnest one till date! Only 3.5 inches high; however, it is a little heavier at 8.15 lbs.
Run time
120 Minutes
Anti-Allergen Seal
This model has been completely sealed to ensure no captures allergens can escape.
Power
22 CFM
Deep Cleaning
94.5%
Warranty
1 Year
-
$1,099.99
iRobot Roomba i7 Plus
iRobot Roomba i7+ (7550) Robot Vacuum with Automatic Dirt Disposal-Empties Itself, Wi-Fi Connected,...
Shape
The circular shape is unable to reach delicate edges and dirty corners.
Suction Power
10 times suction power, wouldn’t be as effective on the carpets and areas of high dirt intensity.
Bin Capacity
A 16 ounce bigger bin!
Primary Brush Roll
Multi-surface brush rolls almost the same the s9 plus.
Weight and Dimensions
3.7 inches tall with a minute difference of 0.2 inches; moreover it weighs lesser at just 7.45 lbs.
Run time
75 Minutes
Anti-Allergen Seal
No Seal present to prevent the escape of any pollen or allergens.
Power
17 CFM
Deep Cleaning
79%
Warranty
1 Year
$799.99

Last update on 2020-05-20 / Affiliate links / Images from Amazon Product Advertising API

FAQs

  1. How can I make a warranty claim? 

    The standard warranty is a 30-day money-back guarantee followed by a 1-year warranty on craftsmanship and functionality. If you buy through Amazon, you can extend this to 4 years and don’t even have to deal with the iRobot customer service. To make a claim simply contact the customer service with your model and serial number.

  2. Do they have no-go zones? 

    Both the models have this option, and you can easily command the machine to not go to certain areas. 

  3. What will I like about the i7 plus? 

    The self-emptying bin and the ability to clean almost all floor types. 

  4. What will I like about the s9 plus?

    Everything that the i7 plus boast along with the higher suction power, longer run time, better edge cleaning and HEPA quality filters in the Clean Base. 

  5. How will they work their way around fine furniture? 

    Both variants have sensors that help it carefully move around furniture without bumping into anything. They are known to have anti-collision sensors. Visual navigation and smart mapping make it furthermore easier.

  6. How will it work in a multi-levelled house? 

    You will have to move both the models manually through different floors but after that, they can easily clean. They can quickly memorize as much as 10 floor plans. 

Final thoughts on the irobot i7 Plus VS S9 Plus

I hope you feel you know a bit more about these two advanced robot vacuums. One thing is for certain, no matter which one you choose, you should be happy that you have made a great choice.

While I feel that a robot vacuum will never 100% replace a manual clean, there will almost always be a time you’re reaching for the stick vac, these models are as close as you’re likely to get.

The biggest consideration has to be the price. The S9 delivers better cleaning, better battery life and looks cooler. The question you have to ask yourself, is that worth a price difference in the region of $300 when the i7 will still do a great job. That decision is up to you.

You May Also Like

About the Author: matt