Roomba s9 vs Neato D7: Is Dirt Detect Better Than Smart Charging?


Since iRobot released the Roomba s9, people have been talking about how it physically resembles the products from Neato. They certainly have their similarities but you’ll see that they have their differences as well. This is especially true for the s9 and the Neato D7. Although both are impressive robot vacuums, we’re going to help you choose the best model.

Roomba s9 VS Neato D7 Comparison Chart

ModelRoomba s9Neato D7

NavigationiAdapt 3.0 with Imprint Smart MappingLaserSmart with SLAM
Zone CleaningYesYes
Area BlockingVirtual Wall, sold separatelyNo-Go Lines, in app
Extractors Dual Multi-Surface Rubber BrushesSpiral Combo Brush
Recharge and ResumeYesYes
Smart ChargingNoYes
HEPA Filtration Capacity10 microns0.3 microns
Dirt DetectionYesNo
Spring Loaded WheelsNoYes

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Navigation & Mapping

The Roomba s9 uses iAdapt technology while the Neato D7 uses LaserSmart.

Roomba s9 navigation
The Roomba s9 uses camera images and sensors for navigating

Using iAdapt 3.0 Navigation with Imprint Smart Mapping, the Roomba s9 is more efficient at finding its way and adapting to a home. The vacuum combines real-time camera imaging with sensor data for detecting its location and any obstacles around it. The LaserSmart on the Neato D7 is equivalent to an older version of the iAdapt that relies on laser beams for scanning a room. This does make the D7 capable of navigating a room in the dark which the s9 cannot do.

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Area Blocking

The Roomba s9 is compatible with Virtual Walls while the Neato D7 allows users to set No-Go Lines.

Neato D7 no-go
The Neato D7 lets you set No-Go lines on the app

Dual Mode Virtual Walls keep the Roomba s9 out of areas that users don’t want it to clean. The problem is that the s9 does not come with a Virtual Wall in the box so it will have to be bought separately. Zone cleaning is still possible on the iRobot Home app though. The Neato D7, on the other hand, doesn’t need a physical device like a barrier or magnetic strip. No-Go Lines can be set through the mobile app so the D7 will stay out of certain rooms with just a tap.


The Roomba s9 is equipped with double rubber brush rolls while the Neato D7 has a bristled combo brush head.

roomba s9 rollers
The Roomba s9 has rubber rollers
Neato D7 brushes
The Neato D7 has a bristled brush

Underneath, the Roomba s9 has two Dual Multi-Surface Rubber Brushes. These are 30 percent wider than its predecessors as they are located in the front rather than sandwiched between the wheels. Roomba brush rolls also have ridges for combing through low to medium pile carpets. Meanwhile, the Neato D7 comes with a bristled brush that can get tangled with cables, tassels and hair. The D7 doesn’t have Power Boost technology for increasing suction when working on carpeted surfaces either.


The Roomba s9 has a recharge and resume feature while the Neato D7 adds smart charging.

Neato D7 charging
The Neato D7 computes how much charge is needed to finish the job

The Roomba s9 and Neato D7 are both able to pause their cleaning to find their way to their charging docks then resume their work. The difference lies in how the D7 does not wait until it is fully charged before it goes back to work. Rather, it computes how much battery power it needs to complete the task, recharges up to that point and resumes. This means the D7 tends to spend more time cleaning than charging.

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HEPA Filtration

The Roomba s9 filtration can capture particles as small as 10 microns while the Neato D7 can remove down to 0.3 microns.

The Roomba s9 features an AeroForce High-Efficiency Filter that can trap 99 percent of dust mites, allergens, pollen, dander and mold. However, the Neato D7 High-Performance Filter can manage 0.3 microparticles to prevent asthmatic and allergic reactions. It’s unclear if this has a significant effect on cleaning performance but it has an impact on noise. When the D7 is on Eco Mode, it’s quieter than the s9.

Dirt Detection

The Roomba s9 has inherited Dirt Detect while the Neato D7 relies only on stored maps.

The Roomba s9 spends more time on areas that are extra dirty

Like its siblings, the Roomba s9 has dirt detection technology for boosting its cleaning capacity. The s9 can detect concentrations of dirt and debris on the floor. Then, it will spend more time on that area to get it as clean as other sections. The Neato D7 relies only on the maps it has generated to know which areas have already been cleaned or not.


The Roomba s9 has large caster wheels while the Neato D7 has spring loaded wheels.

Neato D7 wheel
The Neato D7 has spring loaded wheels for climbing over obstacles

The Roomba s9 has no trouble with climbing up or down carpets with its large wheels but that is all there is to them. Depending on the situation, the Neato D7’s wheels can extend or retract to move more smoothly even on uneven floors.  The springs also serve to absorb shock so the D7 can climb over obstacles like ledges at the doorway.

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The Neato D7 is affordable, versatile and efficient with smart charging and finer filtration. The pricier Roomba s9 has more cutting edge features though, such as Dirt Detect, rubber extractors and camera imaging. Both would be a good choice for a robot vacuum.

The Roomba s9 can clean well and will not get tangled into wires but the price can give you second thoughts. The Neato D7 is effective enough without costing too much yet uses older technology. In the end, either one can be a great buy so choose the one that better meets your needs.

Last update on 2020-01-28 / Affiliate links / Images from Amazon Product Advertising API