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iRobot Roomba i3+ Robot Vacuum Review: Best for Thick Carpets

Looking for a smart cleaning gadget that will leave no dirt on your thick carpets and rugs? The iRobot Roomba i3+ is just what you need. It has a nice selection of tools, enabling it to efficiently clean every inch of your space.

iRobot Roomba i3+ Robot Vacuum

iRobot Roomba i3+ Robot Vacuum

The iRobot Roomba i3+ is particularly good at picking up dirt from thick rugs. This is thanks to its powerful suction and multi-functional brushes.

  • Brand: iRobot
  • Product number: i355020
  • Surface recommendation: Carpet


This robot vacuum automatically empties its bin, minimizing your exposure to dirt. Its brushes are capable of removing dirt from several surfaces, including thick carpets. And scheduling cleanings is extremely easy as it supports IFTTT automations. That said, it is a little loud and lacks the smart mapping tech found in its siblings like the Roomba i7+.


  • Includes a self-emptying base
  • Superb cleaning performance on thick carpets
  • Automatically detects heavily-soiled spots
  • Easy set-up
  • Supports IFTTT automations


  • Does not have smart mapping technology & loud
Battery life
Ease of use
Value for money

The details

If you have a thick carpet at home, then you understand how difficult it can be to keep it clean.

Most robot vacuums lack enough suction power to remove all the dirt. Even if you find one with ample suction power, it may lack the proper cleaning mechanism so it ends up gliding over the dirt. Luckily, you won’t have to worry about any of these issues with iRobot Roomba i3+.

Boasting a Power-Lifting technology that provides 10 times more suction power, it’s the ultimate tool to get your thick rugs spotless. Here’s an indepth look at the Roomba i3+.


The Roomba i3+ delivers an unparalleled cleaning performance. It comes equipped with two multifunctional rubber brushes that can remove dirt from any surface, including ultra-thick carpets.

There’s also an edge sweeping brush, which is designed to get into every nook and cranny of your home and remove dirt.

While iRobot isn’t very transparent about the suction power of this gadget, it mentions that the Roomba i3+ has 10 times the suction power of conventional models. Based on our tests, it’s powerful enough to pick up stubborn dirt, and this includes pet fur.

That said, this robot vacuum is a little loud. So if you’re sensitive or have pets that are sensitive to loud noises, you’ll want to schedule cleaning when no one is home.

On a more positive note, this robot vacuum touts a self-emptying bin. It’s fitted with the legendary Clean Base Automatic Dirt Disposal that was first installed on the Roomba s9+.

This blends a charging dock with a trash receptacle, which draws dirt from the gadget’s bin every time it returns to base. The self-emptying bin is a welcome feature as it limits your exposure to dirt- a much needed feature for homeowners who suffer from allergies.

Ease of use

One of the reasons why you’re investing in a robot vacuum is because of its user-friendliness. Thankfully, the iRobot Roomba i3+ excels on this font.

Setting it up is such a straightforward process, that even newbies can do it without a hitch. The charging dock, also referred to as the “clean base” is pretty tall, and is meant to lean against a wall. Be sure to set it up in a strategic location that has a strong WiFi signal.

Once you connect this base to an electric outlet, all you have to do is pop the vacuum on it to charge, pair it with the app on your phone and start navigating it.

One thing we like about the Roomba is that you’ll never have to take a guess on whether it’s cleaning or stationary. Whenever it starts cleaning, it emits a powering-up alert. Better yet, it has an illuminating feature on the top that showcases different colors depending on what mode it’s on.

Configuring scheduled cleaning is also very straightforward with the Roomba i3+. It lets you set the specific day and time when it should clean.

The fact that this robot vacuum supports IFTTT (If This Then What) event-based automations is another feature that sets it apart. What this does is that it relies on other smart gadgets within your home to determine the right time to start cleaning.

For example, the bot can automatically start cleaning as soon as the MyQ-equipped garage door shuts. It can also rely on your phone’s location data. So once it detects that you’ve left, it fires up the bot to start cleaning.

Battery life

The Roomba i3+ doesn’t have the best run time. In fact, it can only last for about 75 minutes per charge.

iRobot tries to make up for this fact by offering a feature dubbed “recharge and resume.” As implied in the name, this mechanism allows the bot to pick up from where it left once it’s charged to full capacity.


If you can forego advanced features like smart mapping, the Roomba i3+ is the perfect substitute for the more costly Roomba i7+.

In fact, this one offers the same suction power and self-emptying features you get from the i7+, but at a much lower price. Even then, the i3+ is more expensive than the other robot vacuums in our review.

This is understandable considering you get features like IFTTT support, seamless integration with Google Assistant and Amazon Alexa. The vacuum is also designed to detect areas that are soiled heavily and clean them more thoroughly.

Final verdict

iRobot Roomba i3+ is the ideal robot vacuum for homeowners who have very thick carpets in their home. It uses a PowerLifting suction technology that is 10x more powerful than other vacuums. And, it has an automatic self-emptying bin, so you’ll barely be exposed to dirt.

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