The Ultimate Review of iRobot Roomba i3+ (3550) Robot Vacuum

iRobot Roomba i3
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The iRobot Roomba i3+ (3550) Robot Vacuum is a well-balanced robot vacuum cleaner that cleans well on a variety of floors and disposes of dirt automatically. Furthermore, iRobot Roomba i3+ (3550) Robot vacuum has the ability to work with Amazon Alexa and Google Home Assistant, as well as the iRobot smartphone app, which offers a multitude of advanced features.

While the iRobot Roomba i3+ (3550) may not replace a primary vacuum cleaner, especially when vacuuming elevated surfaces, it helps users maintain clean floors, saving plenty of time and effort. With its self-emptying bin, the iRobot Roomba i3+ is the first robot vacuum that’s actually affordable.

While the latest Roomba i3+’s feature list is relatively sparse in comparison to recent robot vacuums such as the Roomba i7 robot vacuum, our iRobot Roomba i3+ review found it to be a good robot vacuum paired with an auto-emptying Clean Base. Even though it doesn’t offer an extensive list of features, it does what it should.

There are too many robot vacuums available in the market. It becomes difficult to choose the best and affordable robot for better cleaning and vacuuming purposes. That’s where plays its role. We have done intensive research and found iRobot Roomba i3+ for individuals looking for an affordable robot vacuum with good cleaning features.

iRobot Roomba i3+ (3550) Review:

Using Roomba i3+, you don’t have to think about vacuuming anymore. It is able to clean neat rows and empty itself while learning your cleaning habits to offer you customized cleaning schedules. You no longer need to vacuum for months after it empties itself into a Dirt Disposal bag after every cleaning. It features Dual Multi-Surface Rubber Brushes and 10X Power-Lifting Suction for impressive cleaning.

You can schedule your robot to clean using either the iRobot Home App or just your voice with Google Assistant or Alexa. Vacuuming is easier than ever with the i3+. Before moving into the detailed review of iRobot Roomba i3+, let’s check out the specifications of the Roomba i3+

iRobot Roomba i3+ Specifications

  • Dimensions 26 by 13.26 by 3.63 inches
  • Battery Life 90 minutes
  • Mop/Vacuum Hybrid No
  • Scheduling Yes
  • Virtual Walls No
  • Remote Control             No
  • Phone Control Yes

Let’s move onto the detailed review of the iRobot Roomba i3+ (3550) Robot Vacuum:

Design of the iRobot Roomba i3+ (3550)

In addition to the Clean Base Automatic Dirt Disposal dock, the i3+ also comes with an AllergenLock bag which can hold up to 60 days’ worth of debris, based on how often you vacuum and how dirty your home is. Following a vacuum cleaning, you can hear the Clean Base’s blower motor kick on as the contents of the dustbin are sucked into the bag as the robot docks.

Debris from the dustbin is transferred from the dustbin into the bag by way of an evacuation tube within the Clean Base. There is an extra bag in the box, as well as a bag preinstalled with the Clean Base. According to iRobot, the bag features four layers of allergen-blocking material that can trap 99 percent of pollen and mould.

While the Clean Base is functional, it is somewhat unsightly. As a result, it has a larger footprint than a standard robot vacuum docking station, measuring 19 by 12.2 by 15.1 inches (HWD). Compared to other models, the i3+ measures 13.26 inches in diameter and 3.63 inches high.

Three buttons are located on the top of the i3+: a large Clean/Power button in the center, flanked by Home and Spot Clean buttons on either side. Light Ring Indicators sit around the Clean/Power button. These blink white or solid white when the robot is charging, pulse red when the battery is low, and shine blue when the robot is trying to find its Clean Base or in Dirt Detect mode.

It has a grey matte/textured finish on top that looks almost like fabric and minimizes fingerprints, unlike some robot vacuums that have mirrored covers that show dust. In addition, there is a Room Confinement (RCON) sensor on top that can determine whether the base is Clean, and a Light Touch sensor on the front that can detect walls and other obstacles.

It is equipped with two multisurface brushes on the bottom and one edge-sweeping brush on the top. The robot has four Cliff sensors in order to avoid falling downstairs, as well as a Floor Tracking sensor for having it clean neatly instead of in a bumper-car-like fashion. InIRobot claims its dustbin contains a high-efficiency filter that captures 99 percent of pollen, mould, dust mites, and cat and dog allergens. The kit comes with one filter preinstalled, and you get one extra in the box.

Self Emptying Base of iRobot Roomba i3+

There are two models of IRobot’s auto-emptying dock – one for the i-series of robots and one for the s-series. There is one big difference between the two models: the dustbin port is located at the bottom of the base.

A thin, shiny black stripe adorns the upper half of the matte black Clean Base that comes with the Roomba i3. It’s impossible to miss the Clean Base since it’s 19 inches high, 12.2 inches wide, and 15.1 inches deep. Even though it’s large, the Clean Base’s convenience can’t be beaten.

According to iRobot, the disposable vacuum bag inside the base captures 99% of pollen and mold. In order to cover the opening of the bag, a small plastic door slides up when the bag is removed from the base. As a dust-sensitive allergy sufferer who frequently examines robot vacuums (usually while testing them), We love auto-emptying bases, particularly those provided by iRobot.

Having said that, you might not want to run Clean Base when people are sleeping. It’s quite loud. It sounds like a tuned-up motorcycle at 10,000 rpm. However, it only lasts for 14 seconds. That’s enough time to empty the onboard dustbin every time, leaving only minimal dust residue in there.

How to Setup iRobot Roomba i3+

In the box, you will find a Getting Started guide that walks you through the setup process. Follow the below-mentioned steps to setup iRobot Roomba i3+:

  • Start by placing the charging station in close proximity to an outlet with good WiFi coverage, and preferably at least 1.5 feet away from any other objects.
  • In the next step, you manually place the robot on the charging station, making sure that the metal charging contacts are lined up.
  • After a few moments, you should hear a sound that lets you know the robot has woken up and started charging.
  • You will then need to download the iRobot Home app and create an account if you don’t yet have one.
  • If you sign into the iRobot Home app for the first time, it will ask for permission to discover and connect to your local network. Press OK.
  • You will then see the Add a Robot screen. Select Roomba, and you can then name your robot or choose the default.
  • Afterward, the app brings up a screen for selecting the network you want to connect to and entering your password.
  • Then you are instructed to press the robot’s Home and Spot buttons simultaneously for two seconds until you hear a sound.
  • Click the box next to the phrase “press the buttons” when you hear the sound, and it will start activating the robot.
  • It took only a few minutes for the activation to complete.

After you activate the app, it walks you through a quick tutorial on what your Roomba can do.  Amazon Alexa automatically sends you a notification on your phone when it discovers the new robot, and my Amazon Echo speaker says I can control it by saying, “Turn on Roomba.”

Mapping Feature of iRobot Roomba i3+ Robot Vacuum

Upon connecting, the Roomba i3+ generates a map of where it has been cleaned, but you cannot save or edit these maps. It shows you where it’s been, but you can’t direct it where to go. Due to this, there is no way to clean individual rooms or divide areas. There is also no option for virtual walls or no-go zones. Roomba i3+ users who want a virtual wall will need to purchase the Virtual Wall from iRobot separately.

You can view a history of the locations the Roomba i3+ has cleaned, even though it does not save maps. The vacuum can be used to see where it has traveled and where it has not yet reached – for instance, in the maze of chair legs under your dining room table.

Roomba i3+ will also display the locations where it detected the most dirt and spent the most time cleaning. The i3+ correctly identifies an area that needs more work when it finds a small line of breadcrumbs. Although the i3+ does not spin in a furious circle to attack the dried bread.

App of iRobot Roomba i3+

Recent updates to the iRobot Home app include “Favorites,” which allow customized cleaning runs. The Roomba i3 does not currently have any custom cleaning options apart from the default, “Vacuum Everywhere.” However, when attempting to add a new favorite, the machine has a splash screen that says it’s coming soon with different time settings.

It is possible to schedule the Roomba i3 to run almost as often as you like – even multiple times a day. It is also possible to integrate the app with other smart home devices, such as the August smart lock, the Ecobee smart thermostat, or Leviton smart switches. You can trigger the bot to start cleaning when you leave home and to stop cleaning when you return. Have trouble finding your phone? Alexa or Google Assistant can be used to order the Roomba i3.

With Imprint Link technology, the Roomba i3 is able to connect to the Braava jet m6 mopping robot, just like its more expensive siblings can. The Braava jet m6 will begin to clean as soon as the i3 has completed its task when set up in the app. This works smoothly and quickly. Within seconds of the i3 docking and emptying its bin, the Braava jet m6 was off of its dock and off to work.

In the most obvious way, you can start and stop mopping tasks without ever having to be in the same room as the Jet. As well as wet mopping and damp sweeping modes, the app lets you control the amount of water that the Jet sprays. The page provides some tutorials, as well as a direct link to the iRobot store for the cleaning-smart pad.

Performance Review of iRobot Roomba i3+

In this industry, most companies advertise the suction power of their robot using pascals (Pa), the metric pressure unit. As with the i7+, iRobot does not make this information easily accessible but claims the i3+ has 10 times the suction of the 600 series.

The i3+ is a fast and efficient robot, but it is very loud, like other iRobot models. It made a disruptive, almost shrieking sound when we worked over the carpet in our office. It might be a good idea to schedule the i3+ to clean when you’re away from the house if you’re sensitive to loud noises, like us.

In testing, its battery ran low after almost 90 minutes of use, and it returned to its Clean Base. It lasts longer than the i7+ and s9+, which both lasted only 60 minutes, as well as several other models we’ve tested that surpass 100 minutes.

Despite the i3+’s lack of long-term battery life, the ability to pick up where you left off is a nice feature. During one test run, it cleaned for only about an hour before returning to its base, and the app said it would resume cleaning in about 77 minutes. Following recharging, the robot was able to continue cleaning for an additional 24 minutes until the job was completed.

A 17-minute test run of the I3+ ended with the vacuum getting stuck under one of our dining room chairs, an area that has also been challenging for other robot vacuums. To resolve this problem, flip your chairs upside down on your table as they do at restaurants, if possible when running your vacuum. By doing this, it will be prevented from getting stuck and will be able to more easily collect crumbs under your table.

AllergenLock successfully emptied the contents of the robot’s dustbin into the bag using the robot’s automatic dirt disposal feature. In addition to the robot emptying its bin automatically after docking, the app includes a button that lets you empty it at any time. The blower makes a lot of noise when emptying the bin, about the same volume as an old-fashioned vacuum for 30 seconds or so. The bin was completely empty after several full test runs.

Maintenance of iRobot Roomba i3+ Robot Vacuum

Almost all floor-cleaning robot vacuums require some maintenance, but the i3+ is less needy than most as it is able to empty its own dustbin. An LED indicator on the Clean Base turns solid red when the AllergenLock bag needs to be replaced.

In addition to cleaning the robot’s filter once a week (or twice a week if you have a pet), iRobot recommends that you replace it every two months. Also, you should clean the full bin sensor and the front wheel every two weeks to keep your robot in tip-top shape. You need to clean all the sensors and remove hair entangled around the brushes about once a month.s. A smartphone app will notify you when the robot needs maintenance, and it will even explain how to remove and clean the brushes.

Other Features of iRobot Roomba i3+

The following are other important features of iRobot Roomba i3+:

  • Utilizing neat rows of cleaning patterns, the navigation system allows the unit to vacuum homes while also allowing for the ability to recharge and resume.
  • You need to keep doing what you are doing. With iRobot’s mobile app or the Google or Alexa voice assistant, simply tell the robot to clean, and it will take care of the rest.
  • Roomba’s i3+ robot vacuum & Braava’s jet m6 robot mop connect automatically to vacuum and mop in perfect sync with Imprint Link Technology.
  • Unique Dual Multi-Surface Rubber Brushes don’t get tangled with pet hair. High-Efficiency Filter traps 99% of cat & dog dander allergens.
  • Offers a customized cleaning schedule based on your cleaning habits. It is recommended that extra cleanings be performed when the pollen count is high or when pets shed.
  • In neat rows, the i3+ vacuums hardwood & carpet using floor tracking sensors to navigate your home and map it.
  • This vacuum cleaner features 10x the power-lifting suction and dual multi-surface rubber brushes which pull dirt, debris, and pet hair from wherever it hides.
  • i3+’s Clean Base Automatic Dirt Disposal eliminates the need to vacuum for months at a time. The machine can empty itself for up to 60 days.
  • 99% of cat’s and dog’s dander allergens are captured by this high-efficiency air filter.
  • The iRobot Home App offers many additional features, such as personal scheduling suggestions, seasonal recommendations, etc. The iRobot Roomba i3+ can be used without the smartphone App, but its use is highly recommended.
  • Detection of heavily soiled areas makes it easier for the machine to vacuum more thoroughly, thanks to its Dirt Detect Technology.
  • Roomba i3+ supports Amazon Alexa and Google Home Assistant, among other voice-activated features.


  • The allergy-friendly base that empties itself
  • Exceptional hardwood performance
  • Cleans the dirtiest areas automatically
  • With uncanny accuracy, Dirt Detect sniffs out dirt spots.
  • Cleanup is easy with the proprietary rubber rollers.
  • A tremendous amount of suction power.
  • It’s fast and quiet.


  • Pet hairs on the carpet are poorly picked up
  • It lacks smart mapping
  • Clean Base with a very loud sound

Tips to remember: Following tips should be kept in mind while buying a robot vacuum cleaner:

  • Survey your home first: This is the most important thing you have to do. Ask yourself whether your home has hardwood floors or carpeting. How thick is the carpet in your home? How many levels does your home have? Do you have pets that shed a lot? Does your cat kick her litter out of the box? These are factors to consider when shopping around for a robot vacuum for the first time.
  • Robot vacuums come in a wide range of price tags. Prices start at less than $200 and can go all the way up to more than $1,000.
  • With the latest robot vacuums in the market, you can control them using an app that makes scheduling and controlling the cleanings easier. You can control specific areas of your home with a single tap on an app, depending on which model you have.
  • There are robot vacuums that clean better than others based on their suction power. Each robot vacuum has its own cleaning power and suction. Pet hair can be picked up from carpets more effectively than hardwood, while others may be better at picking it up from hardwood.

Note: The above tips are just preliminary suggestions for purchasing a robot vacuum for the first time. It is also important to consider other factors and features.


iRobot Roomba i3+ Robot vacuum has a variety of unique and affordable features. We have presented you with an in-depth review of the iRobot Roomba i3+ Robot vacuum. Readers are recommended to thoroughly go through this review before making any purchase.


Is the Roomba i3+ Capable of Mapping?

With its state-of-the-art floor tracking sensors, the i3 vacuums hardwood and carpet in neat rows while navigating your home. Robots using Reactive Sensor Technology can determine where they can and cannot reach, so they won’t get stuck on furniture as much and can move more quickly as a result.

Is It Possible to tell Roomba i3+ Where to Clean?

You can program these robots to clean specific rooms in your home, stay away from certain spots, and provide personalized insights to help them clean your home more effectively. Your robot also gives you an overview of what it’s doing while it cleans.

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