Get insider access
Preferred vacuum store
Your browser is not supported or outdated so some features of the site might not be available.
129
Vacuums store-bought and tested, supported by you via insider access, and when you purchase through links on our site, we may earn an affiliate commission.
Driven by data, run by a passionate team of engineers, testers, technical writers, developers, and more. We are hiring!

iRobot Roomba S9 Vacuum Review

Tested using Methodology v1.1
Reviewed Oct 16, 2020 at 09:19 am
iRobot Roomba S9 Picture
7.7
Bare Floor
7.3
Low-Pile Carpet
7.2
High-Pile Carpet
5.7
Pets
5.6
Stairs
4.4
Cars
4.6
Workshop
Vacuum Type
Robot
Bagless
Yes
Cordless
Yes
Anti-Allergy Filter (HEPA)
Yes
Wet Compatible
No

The iRobot Roomba S9 is a premium robot vacuum in the manufacturer's high-end S Series lineup, above models like the iRobot Roomba j7+ and iRobot Roomba i3+ EVO. It performs quite well across a wide variety of surfaces, is very well-built, and maneuvers effectively on a wide range of surfaces. It also has outstanding battery life, allowing it to clean fairly large spaces without running out of charge. Unfortunately, it has quite a few parts that require regular maintenance or replacement. Still, if you're looking for a robot vacuum that can cope with a broad mix of different floor types, it's a good choice.

Our Verdict

7.7 Bare Floor

The iRobot Roomba S9 is very good on bare floors. It clears pet hair and small debris such as rice without an issue, though it does experience a slight drop-off in performance with a full dirt compartment. It feels quite premium and has a long battery life that allows it to clean big rooms without running out of charge. Unfortunately, it has a lot of parts that need to be serviced regularly and has relatively high recurring costs.

Pros
  • Excellent build quality.
  • Fantastic battery performance.
  • Amazing maneuverability.
  • Clears debris effectively on bare floors.
  • Strong overall performance on bare floors.
Cons
  • High recurring costs.
  • No hazard detection system
  • Poor crack-cleaning capability.
  • No mopping function.
7.3 Low-Pile Carpet

The iRobot Roomba S9 is decent on low-pile carpet. It clears pet hair and larger material very easily, but it may take a couple of extra passes to clear away very fine debris. It's also well-built and has a very long battery life, which helps when cleaning big spaces. That said, it has quite a few parts that need to be replaced periodically but thankfully they're very easy to access.

Pros
  • Excellent build quality.
  • Fantastic battery performance.
  • Easily clears away pet hair and larger debris.
  • Amazing maneuverability.
Cons
  • Struggles with fine debris on carpeted surfaces.
  • High recurring costs.
  • No hazard detection system
7.2 High-Pile Carpet

The iRobot Roomba S9 performs decently on high-pile carpet. It maneuvers effectively even on densely-woven carpet and does a good job of clearing various kinds of debris on this surface, though it struggles somewhat with finer material. Its surface detection system enables it to raise its brushroll on carpeted floors, so it shouldn't get stuck on thicker carpeting. However, it does incur somewhat high recurring costs.

Pros
  • Excellent build quality.
  • Fantastic battery performance.
  • Easily clears away pet hair and larger debris.
  • Amazing maneuverability.
Cons
  • Struggles with fine debris on carpeted surfaces.
  • High recurring costs.
  • No hazard detection system
5.7 Pets

The iRobot Roomba S9 is an excellent choice for pet owners. It does a superb job of sucking up pet hair on a wide mix of surface types and feels quite well built. While the vacuum has quite a few parts that need to be serviced or replaced, you can remove its brushroll to detangle hair wraps. It also has a HEPA filter to trap allergens as you clean. Unfortunately, unlike some newer robot vacuums, it doesn't have a hazard detection system that would allow it to spot and react to obstacles like pet waste in real-time,

Pros
  • Clears pet hair effectively.
  • Amazing maneuverability.
  • HEPA filter traps allergens as you clean.
Cons
  • High recurring costs.
  • No hazard detection system
  • No mopping function.
5.6 Stairs

The iRobot Roomba S9 is a robot vacuum that isn't suited for cleaning stairs.

4.4 Cars

The iRobot Roomba S9 is a robot vacuum that isn't designed to clean the inside of cars.

4.6 Workshop

The iRobot Roomba S9 is a robot vacuum and isn't suitable for workshop cleaning.

  • 7.7 Bare Floor
  • 7.3 Low-Pile Carpet
  • 7.2 High-Pile Carpet
  • 5.7 Pets
  • 5.6 Stairs
  • 4.4 Cars
  • 4.6 Workshop
  1. Updated Jul 29, 2022: Converted to Test Bench 1.1.
  2. Updated Jul 22, 2022: We've updated this review to Test Bench 1.0, which includes a broad range of new testing procedures to measure stain and water-clearing performance, suction power, crevice-cleaning performance, noise levels, and air filtration performance. We've also updated our debris and pet hair-pickup performance tests as well as our method of scoring user maintenance requirements and recurring cost.
  3. Updated Apr 25, 2022: Converted to Test Bench 1.0.
  4. Updated May 26, 2021: Corrected input error in 'Automation (Robot Vacuum)' section.
  5. Updated Oct 16, 2020: Review published.
  6. Updated Oct 08, 2020: Early access published.

Test Results

perceptual testing image
Design
8.5
Design
Build Quality

The iRobot S9 is very well-built. Its D-shaped body, similar in profile to that of the Neato Botvac D7, is made of high-grade plastic, accented with a matte-finish copper lid. Its dirt compartment feels mostly sturdy, though its bottom does feel somewhat flimsy and could potentially break if it's dropped. It comes out of the box ready to use, with no assembly required except for setting up its dock station.

7.5
Design
User Maintenance

This vacuum is pretty easy to maintain.

  • Dirt compartment: The dirt compartment is found under the copper bin lid. It features a built-in carrying handle and a release button to open the bottom of the compartment and drop any stored debris. Aside from releasing debris, you can clean it by tapping it against the side of a garbage bin or washing under water. You need to remove the filter before doing so since it isn't washable.
  • Filter: The filter is located inside the vacuum's dirt compartment. You can tap it against your garbage bin to dislodge any stuck-on debris, though this component isn't washable and shouldn't be cleaned with water. Like most other parts here, it needs to be cleaned once or twice a month, depending on if you're a pet owner.
  • Brushrolls: The brushrolls are accessed by removing the brush guard under the vacuum. You can clear stuck debris or hair wraps by hand once or twice a month, depending on use. It can be a little hard to reinsert the brushroll since it needs to be precisely aligned.
  • Side brush: You need a screwdriver to remove the side brush. You should clean it by removing tangled hairs once or twice a month, depending on whether or not you have pets.
  • Wheel: You can pull the wheel out of its cavity and push it out of the socket to clear any tangled hair or stuck-on debris. It should be cleaned every two weeks.

Any part that's washed in water should dry for 24 hours before use again.

4.5
Design
Recurring Cost
Bag Part Number No bag
Filter Part Number 4643682
HEPA Filter Part Number 4643682

The iRobot Roomba S9 has quite a few sources of recurring costs that can add up over time.

  • HEPA filter: The HEPA filter needs to be replaced every two months.
  • Rubber brushrolls: The rubber multi-surface brushrolls should be replaced every 12 months.
  • Side brush: The side brush can be removed and replaced every three months.
  • Rear caster wheel: The wheel should be removed and replaced every 12 months.

If you don't want to buy these parts individually, the manufacturer sells a 'Replenishment Kit' that includes three side brushes, multi-floor rubber brushrolls, and three HEPA filters. Take a look at the Roborock S7 if you're looking for a premium robot vacuum with fewer recurring costs.

9.0
Design
Storing
Height
4.33" (11.0 cm)
Width
12.20" (31.0 cm)
Depth
14.57" (37.0 cm)
Cord Storing
Not Needed
On-Board Tool Storage
Not needed
Vacuum Rack/Station
Yes

This vacuum has outstanding storage capabilities. It's quite small and comes with a low-profile charging station with a nook to store any excess length of power cable.

7.3
Design
Dirt Compartment
Volume
0.13 gal (0.50 L)
Full Indicator
Yes
Bag Included
No Bag Needed

This vacuum has an okay dirt compartment. It's fairly sturdy, though its bottom feels like it could potentially break if dropped. It features sensors to let you know once it's full, either via an in-app notification or with the indicator light on top of the vacuum turning from white to solid red.

Design
In The Box

  • iRobot Roomba S9 robot vacuum
  • Charging dock
  • Charging cable
  • 2x HEPA filter
  • 2x multi-surface rubber brushrolls with bearings
  • 2x side brush (one already inside the vacuum)
  • Dirt compartment
  • User guide

10
Design
Range
Cord Length
N/A
Hose Length
N/A
Minimum Wand Length
N/A
Maximum Wand Length
N/A
Total Range
N/A

This vacuum's range is limited only by its remaining battery life, though it can't climb up or down staircases.

6.2
Design
Portability
Total Weight
9.04 lbs (4.10 kg)
Weight In Hand
N/A
Carrying handle
No

The iRobot S9 isn't especially portable. It's heavier than alternatives like the iRobot Roomba j7+ and lacks a carrying handle to help you carry it from room to room or up and down flights of stairs.

9.2
Design
Battery
Minimum Battery Life
49 min
Maximum Battery Life
155 min
Recharge Time
92 min
Recharge Dock
Yes
Battery Life Indicator
Yes
Removable Batteries
Yes

The iRobot Roomba S9 has remarkable battery performance. It automatically adjusts to different surface types, though you can manually adjust its power setting through three levels: 'Lower', 'Balanced', which is the default, and 'Exceptional'. Even in its strongest suction mode, it supplies just under 50 minutes of continuous runtime. Used more conservatively, its continuous battery life extends to over two and a half hours, which is fantastic. The LED light on top of its body notifies you of the current charge status, with the light going from white to red when its battery level is low.

Design
Quality Of Life Features
Rotating Head
No
Power Adjustment
Yes
Self-Propelled
Yes
Headlights
No
Easy On/Off
Yes
Head Surface Type Adjustment
Only Automatic

This robot vacuum has a couple of different quality of life features. It features a dirt sensor to detect high concentrations of debris and focus its power in those areas. It also has three power levels; the high-power 'Custom + Exceptional Cleaning Power', the default 'Detailed Clean' mode, and the energy-efficient 'Quiet Clean' mode. It also has an auto-adjusting vacuum head that can change height to suit different floor types.

Design
Tools And Brushes
Brushroll
Yes
Brushroll On/Off
No
Removable Brushroll
Yes
Turbo Brush
No
Crevice Tool
No
Upholstery Tool
No
Soft Bristle Brush
No
Hard Bristle Brush
No
Extension Wand
No
Ceiling Fan Tool
No
Pet Grooming Tool
No

The iRobot S9 comes with two multi-floor rubber brushrolls. Unlike the more common three-armed side brush used by other vacuums in the manufacturer's lineup such as the iRobot Roomba i7+, it comes with a five-armed side brush.

Design
Alternative Configuration
Blower Mode
No
Performance
9.5
Performance
Bare Floor Performance (Hardwood, Laminate, Tiles)
Setting Used "Exceptional"
Large Debris at 0 gal (0L) 98%
Large Debris at 0.07 gal (0.25L) 96%
Large Debris at 0.2 gal (0.75L) N/A
Large Debris at 0.4 gal (1.5L) N/A
Large Debris at 0.8 gal (3L) N/A
Large Debris at 1.6 gal (6L) N/A
Small Debris at 0 gal (0L) 100%
Small Debris at 0.07 gal (0.25L) 99%
Small Debris at 0.2 gal (0.75L) N/A
Small Debris at 0.4 gal (1.5L) N/A
Small Debris at 0.8 gal (3L) N/A
Small Debris at 1.6 gal (6L) N/A

The iRobot S9's performance on bare floors is superb. It clears away small debris like rice and bulkier debris like cereal without an issue, with no major drop in suction power as the dirt compartment fills up.

6.6
Performance
Low-Pile Carpet Performance
Setting Used "Exceptional"
Large Debris at 0 gal (0L) 93%
Large Debris at 0.07 gal (0.25L) 94%
Large Debris at 0.2 gal (0.75L) N/A
Large Debris at 0.4 gal (1.5L) N/A
Large Debris at 0.8 gal (3L) N/A
Large Debris at 1.6 gal (6L) N/A
Small Debris at 0 gal (0L) 20%
Small Debris at 0.07 gal (0.25L) 22%
Small Debris at 0.2 gal (0.75L) N/A
Small Debris at 0.4 gal (1.5L) N/A
Small Debris at 0.8 gal (3L) N/A
Small Debris at 1.6 gal (6L) N/A

The iRobot S9 is okay on low-pile carpet. It sucks up larger material, like sand, with very little trouble. However, it has a very hard time dealing with finer debris like baking soda on this surface type, and will probably require a couple of extra passes to remove all of it.

7.5
Performance
High-Pile Carpet Performance
Setting Used "Exceptional"
Large Debris at 0 gal (0L) 84%
Large Debris at 0.07 gal (0.25L) 82%
Large Debris at 0.2 gal (0.75L) N/A
Large Debris at 0.4 gal (1.5L) N/A
Large Debris at 0.8 gal (3L) N/A
Large Debris at 1.6 gal (6L) N/A
Small Debris at 0 gal (0L) 31%
Small Debris at 0.07 gal (0.25L) 31%
Small Debris at 0.2 gal (0.75L) N/A
Small Debris at 0.4 gal (1.5L) N/A
Small Debris at 0.8 gal (3L) N/A
Small Debris at 1.6 gal (6L) N/A

The iRobot S9 delivers good performance on high-pile carpet. Unlike the ONSON GOOVI F007 Robot Vacuum, the S9 easily clears away larger debris like sand. However, it'll probably require a couple of extra passes to deal with finer debris like baking soda.

9.9
Performance
Pet Hair Floor Performance
Bare Floor
100%
Low-Pile Carpet
100%
High-Pile Carpet
96%

The iRobot Roomba S9 does a fantastic job of dealing with pet hair across a variety of surfaces, ranging from bare floors to low and high-pile carpeting.

0.1
Performance
Suction
Maximum Suction
0.2 inHโ‚‚O (0.05 kPa)
Setting Used For Maximum "Custom + Exceptional Cleaning Power", (App)
Normal Suction
0.0 inHโ‚‚O (0.01 kPa)
Setting Used For Normal "Detailed Clean", (App)
Hose Diameter
N/A

The iRobot Roomba S9's real-world suction power is relatively strong for a robot vacuum, exceeding that of the iRobot Roomba i3+ EVO. That said, it isn't as potent as newer flagships like the Roborock S7 MaxV. In any case, its suction inlet is positioned too high above the contact surface to generate a tight seal on bare surfaces, resulting in low suction power measurements.

9.0
Performance
Noise
Bare Floor
65.2 dBA
Low-Pile Carpet
64.7 dBA

The iRobot Roomba S9 is impressively quiet. The sound of it running shouldn't be especially disruptive if you have it running in an adjacent room with the door closed, but you'll have to raise your voice somewhat when speaking to somebody in the same room as the vacuum while it's operating.

8.5
Performance
Maneuverability

This robot vacuum has amazing maneuverability. Like the iRobot Roomba i7+, it uses the iAdapt 3.0 navigation system to create an efficient cleaning route and maneuver around obstructions. It also goes over spots that it deems in need of additional cleaning. The vacuum itself isn't very tall, so it shouldn't get stuck under tables or couches. While it can get stuck on rug tassels, it doesn't get tangled on obstructions like power cables, though it may push them around.

0
Performance
Pet Hair Furniture Performance
Sofa Pickup Post Test
Performance
Air Quality

The iRobot Roomba S9 is effective at sealing in fine allergens. It has an onboard HEPA filter and does a significantly better job of sealing in particles compared to other robot vacuums like the Roborock S7.

4.5
Performance
Cracks
Wood Cracks Post Test

The iRobot Roomba S9 struggles with cleaning debris in cracks and crevices. It can't generate a tight enough seal against the contact surface to draw out debris in deeper cracks and crevices, and its side brush tends to scatter debris around instead of directing it towards its brushrolls. Running it in its 'Exceptional Cleaning Power' mode does help it clear a little more debris in deep and medium-depth cracks, but not by much.

1.0
Performance
Stains
Stain Pickup Post Test

The iRobot Roomba S9 does a terrible job of dealing with stains. Unlike other high-end models like the Roborock S7 MaxV, it doesn't have a mopping attachment that would allow it to scrub away dried-on stains.

0
Performance
Water
Water Pickup Post Test
Automation
7.1
Automation
Physical Automation
Automatic Recharging
Yes
Automatic Bag Emptying
No
Pathing Algorithm
Smart
Physical Boundary Markers
No
Scheduled Start Buttons
No
Cycle Control Buttons
Onboard Only
Navigation Control Buttons
Return to Base Only

The iRobot Roomba S9's automation features are passable. During setup with the iRobot Home companion app, it uses its navigation system to create a virtual map of the layout of your home. One convenience is that if the vacuum runs out of battery while cleaning a room, it will remember the incomplete job and return once it's been recharged.

You can purchase a charging station/dirt bin separately or as part of a more expensive S9 variant, called the S9 Plus, which gives the vacuum a standalone dirt compartment built into its charging dock to automatically empty itself of debris and continue cleaning.

8.0
Automation
Companion App Automation
App Name
iRobot HOME
iOS Availability
Yes
Android Availability
Yes
Software Boundary Markers (No Go Zones)
Yes
App Scheduled Start
Yes
App Cycle Control
Yes
Navigation Control within App
No

The iRobot HOME companion app is great. It allows you to schedule cleaning times for individual rooms and set up virtual boundary markers. The app also shows your previous cleaning history and remaining battery life. It's also fully compatible with Amazon Alexa and Google Home devices, so you make specific inputs with voice commands.

Differences Between Sizes And Variants

Another variant of the iRobot Roomba S9, referred to as the iRobot Roomba S9+, comes with an external dirt bin/charging station for automatic debris disposal. It's also currently the only other vacuum in iRobot's S Series model range. We can't confirm that this model performs similarly, as its automatic dirt emptying capabilities could have an impact on performance. We tested the base variant with no external dirt compartment, and you can see its label here.

If someone comes across a differently-equipped iRobot S9, let us know in the discussions below so that we can update our review.

Compared To Other Vacuums

The iRobot Roomba S9 is a versatile robot vacuum. It cleans effectively on a wide mix of surfaces, feels quite sturdy, and offers exceptional battery performance. it also comes with a HEPA filter to trap allergens as it cleans. Unfortunately, it also has quite a few recurring costs and can be a little tricky to maintain, with quite a few parts that require regular servicing.

If you're looking for alternatives, take a look at our list of recommendations for the best robot vacuums, the best robot vacuums for pet hair, and the best robot vacuums for carpet.

iRobot Roomba j7+

The iRobot Roomba S9 is better than the iRobot Roomba j7+. The S9 incurs lower recurring costs, charges faster, has an automatic suction power adjustment feature, and performs better on all surface types. Like the j7, it can also be purchased with an external dustbin and a corresponding self-emptying capability at an additional cost, though we haven't tested this variant. Meanwhile, the j7 has its unique hazard identification feature and weighs notably less.

Roborock S7

The iRobot Roomba S9 and Roborock S7 each have their advantages, and one may suit you better than the other, depending on your needs. The iRobot has a bigger dirt compartment, maneuvers itself a little more easily, and clears far more debris on low and high-pile carpet. It also takes much less time to recharge, though the Roborock has longer battery life. Its HEPA filter does a much better job of sealing in allergens as well. The Roborock is also a little less demanding in terms of regular maintenance, incurs lower recurring costs, and performs slightly better overall on bare floors. It also comes with a mopping attachment that's impressively well-suited to tackling dried-on stains. Its LIDAR mapping system also makes it a better option for cleaning in dark rooms.

iRobot Roomba i7+

The iRobot Roomba S9 is better overall than the iRobot Roomba i7+. The S9 performs better on all surface types, feels better-built, has lower recurring costs, and has a maximum battery life more than twice as long as the i7+. The i7+ does come with an automatic dirt disposal feature. This effectively gives it a much larger dirt compartment via an external dirt bin that it can return to when full. However, it should be noted that the same option is available for the S9 at an added cost.

Shark IQ Robot RV1001

The iRobot Roomba S9 is better than the Shark IQ Robot RV1001. The iRobot is better-built, easier to maintain, charges faster while offering similar battery performance, and delivers much stronger performance across a variety of surface types. It also has a far more advanced suite of automation features, as it allows you to configure its coverage map with no-go zones or schedule cleaning times for specific rooms.

Roborock S7 MaxV

The Roborock S7 MaxV is more advanced than the iRobot Roomba S9. Both are high-end robot vacuums, but the Roborock has a LIDAR mapping sensor that allows it to easily navigate in the dark, as well as twin front-facing cameras that let it spot and avoid hazards in real-time. The Roborock also has an ultrasonic mopping function to scrub away dried-on dirt. However, the iRobot could be a better option for some pet owners. Its HEPA filter is more effective in sealing in fine allergens like pet dander, and it does a significantly better job cleaning up pet hair on carpeting. While you can bundle both with self-emptying stations, the Roborock's top trim docking station is more advanced, as it not only empties its dustbin but also cleans its mopping pads and refills its water tank. However, it's very pricey.

Ecovacs DEEBOT OZMO T8 AIVI

The iRobot Roomba S9 is a better robot vacuum than the Ecovacs DEEBOT OZMO T8 AIVI. The iRobot is easier to maintain and offers a better cleaning performance on all surface types. However, the Ecovacs has fewer recurring costs and has a mop attachment, although we don't currently test this feature.

Neato D8

The iRobot Roomba S9 and Neato D8 each have their strengths, so one may suit you better depending on your exact needs. The iRobot feels better-built, has a longer maximum runtime, delivers better performance on low-pile carpet, and maneuvers itself more effectively. That said, the Neato clears more debris on bare floors and high-pile carpet, is less demanding in terms of maintenance, and is notably lighter in weight.

iRobot Roomba i3+ EVO

The iRobot Roomba S9 is better than the iRobot Roomba i3+ EVO. The S9 is better-built, incurs fewer recurring costs, has a longer battery life, maneuvers itself more effectively, and performs better on all surface types. Meanwhile, the i3+ has a self-emptying function, though it's worth noting that this feature is also available for the S9 at an additional cost.

Roborock S6 MaxV

The iRobot Roomba S9 and the Roborock S6 MaxV have different strengths, and you may prefer either one depending on your needs. The iRobot delivers a much better cleaning performance on bare floors as well as low and high-pile carpets. It uses a sensor to detect areas that need extra cleaning and can automatically adjust the height of its brushroll. However, the S6 Max has better automation. It has a unique 'ReactiveAI' feature intended to detect obstacles and allow the vacuum to avoid them.

Roborock S6

The Roborock S6 and iRobot Roomba S9 are somewhat evenly matched, but for different reasons. The Roborock is slightly easier to maintain, incurs marginally lower recurring costs, has a longer overall battery life, and is more effective with clearing large debris, like cereal, on bare floors. It also has a mop attachment to deal with wet messes, but we don't test that particular feature. Conversely, the iRobot performs better on carpeted surfaces, has a slightly larger dirt compartment, and charges almost twice as fast.

iRobot Roomba 981

The iRobot Roomba S9 is better than the iRobot Roomba 981. The S9 feels better-built, has a longer battery life, charges faster, delivers better performance on low and high-pile carpet, and has a more advanced mapping system that stores a permanent map of its coverage area, allowing you to set up virtual boundary lines or schedule cleaning sessions for specific rooms. Meanwhile, the 981 incurs lower recurring costs.

Shark AI Robot

The iRobot Roomba S9 is better than the Shark AI Robot. The iRobot is better-built, has fewer parts requiring regular maintenance, charges much faster, has an automatic surface detection system, maneuvers itself more effectively, and clears more debris on bare floors and low and high-pile carpet. Conversely, the Shark incurs lower recurring costs and has a longer maximum battery life.

iRobot Roomba 692

The iRobot Roomba S9 is a much better robot vacuum than the iRobot Roomba 692. The S9 feels better-built, has an allergen-trapping HEPA filter, is fitted with a bigger dustbin, lasts longer on a single charge, and clears more debris on bare floors as well as low and high-pile carpet. Its iAdapt 3.0 navigation system is far more advanced, resulting in better overall maneuverability and allowing you to set up virtual boundary lines or schedule cleaning jobs for specific rooms. However, the 692 does incur lower recurring costs.

eufy RoboVac X8

The iRobot Roomba S9 is better than the eufy RoboVac X8, though the eufy is still a solid option if you want something a little more affordable. The iRobot feels better-built, is easier to maintain, has a larger dustbin, and can automatically change its brushroll height to match different surfaces. It also does a better job of maneuvering itself and clears away more debris on carpeted surfaces. That being said, the eufy does a slightly better job of sucking up debris in crevices and incurs lower recurring costs.

Neato Botvac D7

The Neato Botvac D7 and the iRobot Roomba S9 have different strengths. The Neato is much easier to maintain, has a considerably longer minimum battery life, and performs better on bare floors. The Roomba feels better-built, clears more debris on both low and high-pile carpet, and can maneuver around obstructions like electrical cords more easily.

Roborock S5

The iRobot Roomba S9 is a better overall robot vacuum than the Roborock S5. The Roomba is better-built, charges faster, and performs much better on carpeted floors. That said, the Roborock is easier to maintain, has lower recurring costs as well as longer minimum battery life, and performs slightly better on bare floors. I

iRobot Roomba i4

The iRobot Roomba S9 is better than the iRobot Roomba i4. The S9 is better-built, easier to maintain, has a larger dustbin, and delivers superior performance on bare floors as well as low and high-pile carpeting. It also does a better job of maneuvering itself around obstacles.

Roborock S4 Max

The iRobot Roomba S9 is a better robot vacuum than the Roborock S4 Max. The iRobot is better-built, uses a larger internal dustbin, and charges in little under a third of the time as the Roborock. The Roborock also delivers superior performance on all surface types.

iRobot Roomba 694

The iRobot Roomba S9 is better than the iRobot Roomba 694. The premium-priced S9 feels better-built, has an onboard HEPA filter, uses a larger dustbin, has a far more advanced suit of automation capabilities, does a better job of maneuvering itself, and performs better on all surfaces. However, the 694 incurs lower recurring costs.

yeedi vac station

The iRobot Roomba S9 and yeedi vac station each have their own advantages, so one may suit you better than the other depending on your needs. The iRobot is better-built, incurs lower recurring costs, is equipped with an allergen-trapping HEPA filter, doesn't struggle with bulky debris, and performs considerably better on low-pile carpet. It also charges considerably faster than the yeedi. Meanwhile, the yeedi's self-emptying feature reduces hands-on maintenance requirements and gives it a much larger effective debris capacity. The yeedi also delivers better performance high-pile carpet. It's also equipped with a mopping attachment for clearing messes on bare floors, but it takes quite a while to deal with dried-on debris.

ONSON GOOVI F007 Robot Vacuum

The iRobot Roomba S9 is a significantly better robot vacuum than the ONSON GOOVI F007 Robot Vacuum. The iRobot feels better-built, is easier to maintain, and recharges in less time. It also offers significantly better performance on all surface types and has better maneuverability. However, the ONSON is much more portable as it weighs less.

Narwal T10

The iRobot Roomba S9 is a better robot vacuum than the Narwal T10. The iRobot has a much larger internal dustbin, can maneuver around or over obstacles like rugs more effectively, and clears more debris on almost all surface types. However, the Narwal does have a mopping system for dealing with messes on bare floors. Its LIDAR mapping system also allows it to navigate far more easily than the iRobot in the dark.

+ Show more

Discussions