Roomba 677 vs 675: Which Entry-Level Robot Vacuum Is Better?

Being numbered so closely must mean that these two robot vacuum models are quite similar. And that’s exactly the case, although the Roomba 675 is definitely more popular than the Roomba 677. Curious to find out why? Take a look at our comparison below.

Roomba 677 vs 675 Comparison Chart

ModelRoomba 677Roomba 675
iRobot Roomba 677 Smart Wi-Fi Connected Multisurface Robot Vacuum with Alexa Connectivity and Pet... iRobot Roomba 675 Robot Vacuum-Wi-Fi Connectivity, Works with Alexa, Good for Pet Hair, Carpets,... 
PriceCheck Price Check Price 

Dimensions13.4″ x 13.4″ x 3.54″13.4″ x 13.4″ x 3.54″
Weight6.77 lbs6.77 lbs
Smart NavigationYesYes
High Efficiency FilterNoNo
Suction Power1x Suction1x Suction
Runtime90 minutes90 minutes
Bin Capacity300 ml300 ml
Voice ControlYesYes
Virtual WallIncludedSold Separately


The Roomba 677 and 675 only differ in color.

Roomba 677 vs 675 Design
Really the only way to easily tell the Roomba 677 (left) from the Roomba 675 (right) is that flat gray surface.

As you can see, the Roomba 677 has a gray highlight at the top while the Roomba 675 is all in black. And that’s it, that’s actually the only physical difference between the two. It might have been a sort of experiment on iRobot’s part to see which color works better on their robot vacuums. Whatever the case, even the undersides of each machine look similar.

Some notable design features that enhance the handling of these robot vacuums are the top handle and the push-button bin. You’ll be able to move them easily to different rooms and floors as well as empty the bins when they get full. Controlling either robot vacuum is straightforward too. You can tell it to start cleaning, spot clean a small area or return back to its dock.

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Mapping and Navigation

Both Roombas use similar navigation systems to move around and detect dirt.

Roomba 677 vs 675 Navigation
Sensors and front bumpers aid both Roombas in determining where they can go.

The 600 series of Roomba vacuums use iRobot’s iAdapt navigation system, which is essentially a suite of sensors that determine whether the machine can move forward or go around an obstacle. It also tells the robot if it’s near a cliff, helping it avoid falling down stairs for example. In action it will look like the Roomba 677 and 675 are just moving in random directions all the time, though they can reliably cover a lot of ground if left alone and after continued use.

Front bumpers prevent the machine from getting beat up by impact, although the robots move slow enough to avoid dents. There’s also a small bit sticking out at the top which will tell the robot whether it can fit under furniture. Dirt sensors located just inside the suction area will sense if the machine is picking up a lot more particles than normal. If so, the Roomba will typically focus on that area until it’s all cleaned up.

Cleaning Power

Both Roombas have the same air power and cleaning features.

Roomba 677 vs 675 Cleaning Power
Dual brushrolls propel dust and other particles into the powerful suction of the Roomba.

In general, all of the Roomba 600 series models use the same AeroVac system to clean. iRobot’s 3-stage cleaning system first loosens dirt from surfaces before lifting them up where the suction can pull them into the bin. The Roomba 677 and 675 have similar motors and brushrolls for this process.

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An Edge-Sweeping Brush allows the machines to reach into corners and along edges. The brushrolls themselves adjust automatically to stay in close contact with the surface being cleaned. This means that either Roomba will adapt itself whether it’s on a hardwood floor or on a carpet.

Smart Features

The Roomba 677 comes with a Virtual Wall.

Roomba 677 vs 675 Smart Features
Here’s an illustration of the Virtual Wall in action.

The Dual Mode Virtual Wall is a handy and elegant solution to control which areas the Roomba can and can’t go. It can be set to either Virtual Wall Mode which can block off a straight line up to ten feet, useful to keep the machine inside a single room. There’s also a Halo Mode which creates a 4-foot circle around the device so that nearby items won’t get bumped. The Roomba 677 has a Virtual Wall included, while you’ll have to get one separately for the Roomba 675.

Other than that, both Roombas can connect via Wi-Fi, allowing you full control via the iRobot HOME mobile app or through voice-activated systems such as Amazon Alexa and Google Assistant. You can set up a cleaning schedule once a day to make sweeping the floor a regular activity for the Roomba.

Finally, both Roombas will attempt to find their charging station once their battery runs low, so it can get recharged ready for the next job. Sometimes the robot vacuum will stray too far from the dock though or else meet obstacles along the way so manual pick-up will still be occasionally necessary.


The Roomba 675 is the better budget-friendly robot vacuum than the Roomba 677.

Despite the only practical difference between these two robot vacuums are their colors and whether a Virtual Wall is included, the Roomba 675 is still easily the better choice. The reason for this is simply their price points. As it’s actually cheaper than the other, the Roomba 675 is one of the most affordable robot vacuums that iRobot currently offers that still has plenty of smart features and connectivity.

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Even with the inclusion of a Virtual Wall, the Roomba 677 is still quite expensive without noticeable differences in performance and features. You might like it a bit more if you have several big areas where the Virtual Wall will be of much use, but unless the Roomba 677 has a big discount on it, the Roomba 675 plus a Virtual Wall will still cost less.

Last update on 2020-02-28 / Affiliate links / Images from Amazon Product Advertising API