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LG CordZero A9 [A916, A916BM] Vacuum Review

Tested using Methodology v1.3
Review updated Nov 24, 2022 at 11:06 am
Latest change: Writing modified May 16, 2024 at 10:49 am
LG CordZero A9 [A916, A916BM] Picture
7.3
Bare Floor
7.6
Low-Pile Carpet
7.3
High-Pile Carpet
7.5
Pets
8.5
Stairs
8.1
Cars
5.4
Workshop

The LG CordZero A9 is a cordless stick vacuum. It's a well-rounded, if basic, option that executes well on the essentials, with a lightweight design, intuitive controls, and a relatively diverse set of attachments. Higher-end models also come with a pair of battery packs, giving it a longer overall runtime. Unfortunately, its dirt compartment is on the smaller side.

While there are multiple variants, most only differ in color and the included accessories. The exceptions are the Kompressor variants, which have external levers that you can use to push down on debris inside the dustbin, effectively giving them a larger overall debris capacity. Further details on the differences between models are outlined in the Differences Between Variants section of the review.

Our Verdict

7.3 Bare Floor

The LG CordZero A9 is decent for bare floors. It does a good job dealing with fine debris, but its brushroll can scatter around a small amount of medium-sized debris, and its floorhead is a little low to the ground, causing it to push around bulkier debris like cereal. It's also maneuverable and has a second battery, increasing its maximum runtime. Recurring costs are also very low, and it's easy to maintain. However, its dustbin is a little small, so it needs frequent emptying.

Pros
  • Excellent pet hair cleaning performance.
  • Maneuverable design.
  • Very good battery performance.
Cons
  • Fairly small dustbin.
  • Many parts that require regular cleaning.
7.6 Low-Pile Carpet

The LG CordZero A9 is good for low-pile carpet. It clears finer debris without much of an issue, and only a small amount of large and medium-sized debris is likely to be left over after a single back-and-forth pass. It's easy to maneuver and has a long maximum runtime, thanks to the included second battery. However, it can get caught on rug tassels and has a small dustbin.

Pros
  • Excellent pet hair cleaning performance.
  • Maneuverable design.
  • Very good battery performance.
Cons
  • Fairly small dustbin.
  • Many parts that require regular cleaning.
7.3 High-Pile Carpet

The LG CordZero A9 is a satisfactory option for high-pile carpet. It can clear away a wide mix of debris types on this surface within a single back-and-forth pass, though you'll likely need to go over it again to get every last bit of debris. It feels well-built for the most part, though its small clear plastic dustbin does feel quite fragile.

Pros
  • Excellent pet hair cleaning performance.
  • Maneuverable design.
  • Very good battery performance.
Cons
  • Fairly small dustbin.
  • Many parts that require regular cleaning.
7.5 Pets

The LG CordZero A9 is a good option for pet owners. It deals with pet hair very effectively on various surface types, from bare floors to carpet. Its floorhead's brushroll is easily removable if you want to clear any tangled hair wraps, and the vacuum has a HEPA filter to trap allergens as you clean.

Pros
  • Onboard HEPA filter.
  • Excellent pet hair cleaning performance.
  • Removable brushroll.
  • Maneuverable design.
Cons
  • Many parts that require regular cleaning.
8.5 Stairs

The LG CordZero A9 is excellent for cleaning staircases. Its lightweight construction makes it easy to pick up and carry, and you can quickly reconfigure it into a handheld vacuum to clean tight spots. It also delivers superb performance on bare floors and high-pile carpet and clears a good amount of debris on low-pile carpet.

Pros
  • Maneuverable design.
  • Easily reconfigurable into a handheld vacuum.
Cons
  • Many parts that require regular cleaning.
8.1 Cars

The LG CordZero A9 is great for vacuuming the inside of your car. Its cordless design lets you clean all the parts of your car's interior even if you're parked far from any electrical outlets. It can be easily reconfigured into a handheld vacuum and comes with a turbo brush for removing debris from upholstered surfaces. That said, it does have quite a few parts that need regular cleaning.

Pros
  • Maneuverable design.
  • Very good battery performance.
  • Easily reconfigurable into a handheld vacuum.
Cons
  • Many parts that require regular cleaning.
5.4 Workshop

The LG CordZero A9 is poor for workshop cleaning, though that's a long way from its intended use. It can easily handle household debris on hard surfaces and can be reconfigured into a handheld vacuum to clear away messes in tight spots, but it isn't designed to clear away liquid spills.

Pros
  • Maneuverable design.
Cons
  • Many parts that require regular cleaning.
  • Not meant for cleaning liquid spills.
  • 7.3 Bare Floor
  • 7.6 Low-Pile Carpet
  • 7.3 High-Pile Carpet
  • 7.5 Pets
  • 8.5 Stairs
  • 8.1 Cars
  • 5.4 Workshop
  1. Updated May 16, 2024: We've added a link to the Shark Detect Pro in the 'Quality Of Life Features' section of the review to provide an alternative with an automatic power adjustment system.
  2. Updated Apr 09, 2024: We've added text to this review for the new tests added in Test Bench 1.3.
  3. Updated Apr 09, 2024: We've converted this review to Test Bench 1.3. We've overhauled our floor performance tests and added new 'Hard Floor Pick-Up,' 'High-Pile Carpet Pick-Up,' 'Low-Pile Carpet Pick-Up,' and 'Pet-Hair Pick-Up' tests. You can see the full changelog here.
  4. Updated Feb 09, 2024: We've added a link to the Dyson V15s Detect Submarineโ€‹ in the 'Airflow' section of the review to provide a more powerful alternative.
  5. Updated Oct 20, 2023: We've added text to this review for the new tests added in Test Bench 1.2.
  6. Updated Oct 20, 2023: We've converted this review to Test Bench 1.2. This update builds on our previous 'Suction' test with a new 'Airflow' test that more accurately measures a vacuum's ability to generate air movement. If you'd like to see an in-depth look at the reasoning and methodology behind this change, you can see our full changelog here..
  7. Updated Mar 06, 2023: We've changed the product name to 'LG CordZero A9 [A916, A916BM]' in order for the review to encompass all model variants.
  8. Updated Dec 14, 2022: Added link to the Samsung Jet 75 in the 'Dirt Compartment' section to provide an alternative with a higher-capacity dustbin.
  9. Updated Nov 24, 2022: We've updated the text in the review to account for the new tests and scoring methodology in ย Vacuum Test Bench 1.0 ย andย  Vacuum Test Bench 1.1.
  10. Updated Aug 18, 2022: This vacuum's suction force has been retested with a more accurate manometer. The test results for the 'Maximum Suction' and 'Normal Suction' fields have been updated. All relevant scores and text have been updated.
  11. Updated Jul 29, 2022: Converted to Test Bench 1.1.
  12. Updated Mar 30, 2022: Corrected input error in the 'Minimum Wand Length' field in 'Range' section.
  13. Updated Mar 18, 2022: Converted to Test Bench 1.0.
  14. Updated Nov 05, 2021: Review published.
  15. Updated Nov 02, 2021: Early access published.
  16. Updated Oct 26, 2021: Our testers have started testing this product.
  17. Updated Oct 13, 2021: The product has arrived in our lab, and our testers will start evaluating it soon.
  18. Updated Oct 06, 2021: We've purchased the product and are waiting for it to arrive in our lab.

Differences Between Sizes And Variants

There are several variants of the LG Cordzero A9. We tested the A916BM variant, and you can see its label here.

Model Name Product Code Parts Included  Color Notes

LG CordZero A9

A916BM Universal Power Nozzle, Power Mini Tool, 2-in-1 Combination Tool, Crevice Tool, 2x batteries Matte Black Comes with an additional filter.
LG CordZero A9 A913BM Universal Power Nozzle, 2-in-1 Combination Tool, Crevice Tool, 1x battery Matte Black/Silver  
LG CordZero A9 A900BM Universal Power Nozzle, Crevice Tool, 1x battery Matte Black/Silver  
LG CordZero A9 A912PM Universal Power Nozzle, Crevice Tool, 1x battery Blossom Pink   
LG CordZero A9 Charge A905RM Universal Power Nozzle, 2-in-1 Combination Tool, Crevice Tool, 2x batteries Matte Red  
LG CordZero A9 Charge Plus A906SM Universal Power Nozzle, Power Floor Nozzle, 2-in-1 Combination Tool, Crevice Tool, 2x batteries Matte Silver  
LG CordZero A9 Ultimate A907GMS Universal Power Nozzle, Power Floor Nozzle, Power Punch Nozzle, 2-in-1 Combination Tool, Crevice Tool, 2x batteries Iron Grey Comes with an additional filter.
LG CordZero A9 Limited A908VMR Universal Power Nozzle, Power Floor Nozzle, Power Punch Nozzle, 2-in-1 Combination Tool, Crevice Tool, 2x batteries Vintage Wine Comes with an additional washable cyclone and filter.
LG CordZero A9 Kompressor A925KSM Universal Power Nozzle, 2-in1 Combination Tool, Crevice Tool, 2x batteries Matte Silver Uses Kompressor technology, which compresses debris within the dirt compartment.
LG CordZero A9 Kompressor

A927KVMS, A927KGMS

Universal Power Nozzle, Power Punch Nozzle, 2-in-1 Combination Tool, Crevice Tool, 2x batteries Vintage Wine, Iron Grey Uses Kompressor technology, which compresses debris within the dirt compartment.
LG CordZero A9 Kompressor A926KSM Universal Power Nozzle, Slim Power Floor Nozzle, 2-in-1 Combination Tool, Crevice Tool, 2x batteries Matte Silver Uses Kompressor technology, which compresses debris within the dirt compartment.
LG CordZero A9 Kompressor Stick Vacuum With Power Mop A929KVM Universal Power Nozzle, Power Mop Nozzle, 2-in-1 Combination Tool, Crevice Tool, 2x batteries Vintage Wine Uses Kompressor technology, which compresses debris within the dirt compartment. Also has a mopping head for clearing messes on bare floors.

Let us know in the discussions if you come across another variant of this vacuum.

Compared To Other Vacuums

The LG CordZero A9 is a versatile cordless stick vacuum. Compared to alternatives like the Dyson V11, it has a smaller dustbin and a slightly less powerful suction motor, though it can be bundled with a second battery that gives it a longer maximum runtime as long as it's kept charged.

If you're looking for alternatives, look at our list of recommendations for the best cordless vacuums, the best cordless stick vacuums, and the best cordless vacuums for pet hair.

Dyson V15 Detect

The Dyson V15 Detect is slightly better than the LG CordZero A9. The Dyson incurs virtually no recurring costs, has a larger dustbin, and features an automatic suction power adjustment feature. It also performs notably better on bare floors and carpets. Conversely, higher-end LG variants come with a second battery that gives it a longer overall runtime.

Dyson V11

The Dyson V11 and LG CordZero A9 each have their advantages, so one may suit you better than the other, depending on your needs. The Dyson has fewer parts that require regular maintenance, incurs virtually no recurring costs, has a larger dustbin, and has a surface-type adjustment feature. It also performs better on bare floors and high-pile carpet. Conversely, the LG weighs less, and you can buy a bundle with a second battery that effectively doubles its runtime.

Samsung Jet 60

The LG CordZero A9 is better than the Samsung Jet 60. The LG is better for longer cleaning sessions thanks to its longer runtime. It also delivers better performance on bare floors and can be bundled with a more effective miniature turbo brush attachment. Conversely, the Samsung incurs lower recurring costs, weighs even less, and has a higher-capacity dustbin.

Dyson V8

The Dyson V8 is slightly better than the LG CordZero A9. The Dyson incurs virtually no recurring costs, has fewer parts that require regular maintenance, weighs a little less, and performs better on high-pile carpet. Meanwhile, higher-end LG variants come with a second battery, giving them a much longer total runtime. The LG also clears more debris on low-pile carpet.

Dyson Cyclone V10

The LG CordZero A9 is a little better than the Dyson Cyclone V10. The LG feels marginally sturdier, has fewer parts that need to be cleaned periodically and is quieter. However, the Dyson is a slightly more powerful vacuum.

Dyson V12 Detect Slim

The Dyson V12 Detect Slim and the LG CordZero A9 each have their own advantages. The Dyson weighs less, is easier to maneuver, and has a particle sensor. Conversely, the LG does a better job on carpets, has a larger dustbin, can be bundled with two batteries, and is quieter.

Samsung Bespoke Jet

The Samsung Bespoke Jet is more full-featured than the LG CordZero A9. The Samsung feels better-built, has a slightly larger dirt compartment, and a more powerful suction motor that allows for improved debris pickup performance on high-pile carpet. It also has a standup charging rack that doubles as a self-emptying station. Conversely, the LG is a little easier to maneuver, performs better on bare floors, and is more effective at clearing pet hair on carpets.

Samsung Jet 90 Complete

The Samsung Jet 90 Complete and LG CordZero A9 are somewhat evenly matched vacuums, though each has slight advantages in different areas. The LG has fewer parts requiring regular maintenance and clears more debris on carpet. Meanwhile, the Samsung vacuum has a more potent suction motor, incurs lower recurring costs, and has a larger dustbin.

Dyson V7

The LG CordZero A9 is a little better than the Dyson V7. The LG can be bundled with two batteries, yielding a much longer maximum runtime if you keep them both charged. It also performs significantly better on most floor types. However, the Dyson has fewer parts that need periodic cleaning and incurs minimal recurring costs.

Samsung Jet 70

The Samsung Jet 70 is a little better than the LG CordZero A9. The Samsung has a bigger dirt compartment and offers stronger overall suction performance, resulting in superior debris pickup on carpeted floors. Conversely, the LG has a longer battery life using a single battery.

Tineco PURE ONE S11

The LG CordZero A9 is better than the Tineco PURE ONE S11 for most people. The LG clears more debris on low and high-pile carpet. The LG has less demanding maintenance requirements and is easier to maneuver, too. On the other hand, the Tineco is a slightly better option for bare floors. Its included soft roller floorhead allows for marginally better debris pickup on hard surfaces and in cracks and crevices, like tile floors. It also has a bigger dirt compartment than the LG.

Miele Triflex HX1

The Miele Triflex HX1 and LG CordZero A9 each have advantages, meaning one might be a better fit for you, depending on your needs. The Miele is better built, easier to maintain, incurs lower recurring costs, and performs slightly better on bare floors and low-pile carpets. It also has an automatic surface-type adjustment feature. Conversely, the LG has a larger dustbin and better performance on high-pile carpets. It can also be bundled with a second battery, giving it a longer overall runtime.

Shark Cordless Pet Plus [IZ361H, IZ362H, IZ363HT, UZ365H]

The LG CordZero A9 is better than the Shark Cordless Pet Plus. The LG is considerably lighter, has fewer parts that need to be cleaned periodically, takes up a little less room when not in use, can be bundled with a highly effective miniature turbo brush attachment, and delivers better debris-pickup performance on most surfaces. Higher-end models also come with a second battery, yielding a longer maximum runtime as long as you start with a full charge for both packs. On the other hand, the Shark feels a little sturdier and has a higher-capacity dustbin.

Shark Rocket Pet Pro

The Shark Rocket Pet Pro and LG CordZero A9 each have advantages, and one may suit you better than the other, depending on your needs. The Shark incurs lower recurring costs, has fewer parts requiring regular maintenance, has a bigger dustbin, and is easier to maneuver. It also performs better on low-pile carpet. Conversely, the LG is more effective on high-pile carpet, weighs a little less, and can be bundled with a second battery that yields a longer maximum runtime.

Roborock H7

The LG CordZero A9 is better than the Roborock H7. The LG feels better built, has fewer parts needing regular cleaning, makes less noise, and delivers better performance on bare floors and low and high-pile carpets. It exerts a stronger suction force at its floorhead and does a better job cleaning debris in cracks. However, the Roborock does weigh a little bit less, and you can use it as a bagged vacuum.

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Test Results

perceptual testing image
Design
6.5
Design
Build Quality
Vacuum Type
Stick/Handheld

The LG CordZero A9 has passable build quality. It has a mainly plastic body and a metal telescopic wand. The plastic used in its construction looks and feels premium for the most part, though the clear plastic used for its dustbin and top plate of its primary floorhead is a little fragile. You can adjust its suction power via controls on the handle, which you can see here. Assembling and disassembling the LG A9 for regular maintenance or reconfiguring it into a handheld vacuum is easy, but putting together its docking station isn't quite as intuitive and may require a look at the instruction manual.

7.5
Design
User Maintenance

The LG CordZero A9 has some parts that need regular cleaning, but each part is easy to access.

  • Dirt compartment: To empty the dustbin, you just need to hit the release button at the bottom of the bin, which you can see here. Since the dustbin is small, it needs regular emptying. You'll need to use the combination tool to clear any stuck-on dust or debris since you can't wash it under water. Make sure to remove the battery before cleaning it out.
  • Cyclone filter: The cyclone filter is found inside the dustbin. You can remove it from its housing by rotating it counter-clockwise inside its housing. You should clean it under water, then allow it to dry.
  • Exhaust filter: You can remove this part by turning it counter-clockwise. You should clean it with a brush or running water at least once a month before being left to dry out of direct sunlight.
  • Pre-filter: Once you've removed the exhaust filter, you can pull out the pre-filter. You can clean it by using a brush or running it under water at least once a month, but let it dry out of direct sunlight.
  • Universal Power Nozzle: To remove the floorhead's brushroll, you need to use a flat-blade screwdriver or coin to open the single cover lock, which allows you to flip up the brush cover and pull the brushroll out. You should check it before each use and clean it if needed. You can use the crevice tool to clean it. You can also wipe the remaining debris off with a wet cloth.

You must fully air dry any part that's washed with water before using it again.

7.5
Design
Recurring Cost
Bag Part Number No bag
Filter Part Number ADQ75393701
HEPA Filter Part Number ADQ74773921

This vacuum incurs low recurring costs.

  • Exhaust filter: While the filter won't need replacing if well-maintained, you can purchase a replacement from the manufacturer's website if necessary.
  • Pre-filter: Even though the pre-filter is washable, it's still considered a consumable part that you'll need to replace periodically. However, the manufacturer doesn't specify an exact service life. Regardless, you can buy a replacement from the manufacturer's website.

6.9
Design
Storing
Height
36.42" (92.5 cm)
Width
9.84" (25.0 cm)
Depth
12.60" (32.0 cm)
Cord Storing
Not Needed
On-Board Tool Storage
No
Vacuum Rack/Station
Yes

The LG CordZero A9 is fairly easy to store. Its rack station isn't wall-mounted like that of the Dyson V11 and takes up a little more room on the ground, but it holds the vacuum upright and has room for two additional tools.

6.9
Design
Dirt Compartment
Bagless
Yes
Volume
0.09 gal (0.35 L)
Full Indicator
Yes
Bag Included
No Bag Needed

This vacuum's dirt compartment is alright. The upright configuration is reminiscent of older Dyson models like the Dyson V7, and it doesn't hold as much debris as newer stick vacuums like the Samsung Jet 75. As a result, it needs emptying frequently, but since it's made of clear plastic, you can tell how full it is at a glance. Kompressor models are equipped with an external lever that you can use to press down on debris inside the dustbin, giving a bit more room for any collected debris.

Design
In The Box

  • LG CordZero A9 Vacuum
    • Vacuum body
    • Dirt compartment
    • 1x Pre-filter (2x filters included with A916BM, A908VMR, and A907GMS variants)
    • Cyclone
    • HEPA filter
    • 2x Battery (1x Battery included with the A912PM, A900BM, and A913BM variants)
    • Vacuum User Guide
  • Various tools and brushes
    • 2-in-1 brush/upholstery attachment (not included with A900BM or A912PM models)
    • Universal Power Nozzle
    • Crevice tool
    • Telescopic wand
  • Charging station
    • Stand
    • Base
    • 2x Wall mount plate with screws

The following attachment is exclusive to the A916BM model:

  • Power Mini Tool

The following attachment is exclusive to the A916BM model:

  • Power Mini Tool

The following attachment is exclusive to the A907GM, A908VMR, and A927KVMS/A927KGMS models:

  • Power Punch Nozzle

The following attachment is exclusive to the A926KSM model:

  • Slim Power Floor Nozzle

The following attachment is exclusive to the A929KVM model:

  • Power Mop Nozzle

10
Design
Range
Cordless
Yes
Cord Length
N/A
Hose Length
N/A
Minimum Wand Length
2.59 ft (0.79 m)
Maximum Wand Length
3.22 ft (0.98 m)
Total Range
N/A

It's a cordless vacuum, so its range is limited only by the room left in its dustbin and the remaining battery life. Its telescopic wand has a reasonably wide range of adjustments, so you can find a height that suits your preferences.

8.1
Design
Portability
Total Weight
5.97 lbs (2.71 kg)
Weight In Hand
3.68 lbs (1.67 kg)
Carrying handle
Yes

This vacuum is very portable. At just under six pounds, it's on the lighter end of the scale for a conventional stick vacuum, weighing far less than heavier alternatives like the Shark Cordless Pet Plus. Its rubber-lined handle makes it easy to pick up and carry.

7.9
Design
Battery
Minimum Battery Life
15 min
Maximum Battery Life
112 min
Recharge Time
372 min
Recharge Dock
Yes
Battery Life Indicator
Yes
Removable Batteries
Yes

This vacuum has very good battery performance. The A916BM variant we tested comes with two batteries, allowing you to put one in the vacuum while the other charges on the vacuum's rack station. Each battery yields a maximum of one hour of continuous runtime if this vacuum is run in its default power mode without any power-draining attachments. Using it in its max-suction "Turbo" mode with its floorhead attached drains a single battery in just under eight minutes, which is only a little less than average for a vacuum of this type. The measured runtime marginally exceeds the manufacturer's claims, which state a total runtime of 12 to 100 minutes when using two fully charged batteries.

Design
Quality Of Life Features
Rotating Head
Yes
Power Adjustment
Yes
Self-Propelled
No
Headlights
No
Easy On/Off
Yes
Head Surface Type Adjustment
None

The LG A9 has a few quality-of-life features. The "-" and "+" buttons on its handle allow you to change its suction power level depending on your needs. There's the default "Standard/Normal" mode, the higher-output "Power" mode, and the max-suction "Turbo" mode. Activating the latter requires a three-second press on the "+" button, though this delay can sometimes extend to as long as approximately five seconds. However, unlike the Shark Detect Pro, it's incapable of automatically adjusting its own suction power setting depending on debris quantities and surface type.

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

The A916BM variant of the LG CordZero A9 has a few tools and brushes. It comes with a crevice tool for clearing messes in tight corners, a combination upholstery tool/soft-bristle brush, and a turbo brush.

The A907GMS, A908VMR, and A927KVMS/A927KGMS variants come with a Power Punch Nozzle, which is a hand-sized tool that features a vibrating interior component instead of a brushroll to agitate surfaces and release any hidden dust.

The A907GMS, A908VMR, and A927KVMS/A927KGMS variants come with a Power Punch Nozzle, which is a hand-sized tool that features a vibrating interior component instead of a brushroll to agitate surfaces and release any hidden dust.

The A926KSM variant comes with a slim floor nozzle, which is a separate floorhead with a soft roller intended for use on hard floors.

The A907GMS, A908VMR, and A927KVMS/A927KGMS variants come with a Power Punch Nozzle, which is a hand-sized tool that features a vibrating interior component instead of a brushroll to agitate surfaces and release any hidden dust.

The A929KVM model comes with a Power Mop Nozzle attachment, which features an integrated water tank and rotating mop pads to saturate stains and scrub them away.

Design
Alternative Configuration
Blower Mode
No

You can use the LG A9 as a handheld vacuum by removing its telescopic wand and floorhead.

Performance
7.0
Performance
Hard Floor Pick-Up

This vacuum's performance on bare floors is decent. Its brushroll tends to scatter around medium-sized debris like rice, and its floorhead is too low to pass over larger debris like cereal, causing it to push it around instead of sucking it all up. Thankfully, it does a good job of clearing away finer material like sand.

7.0
Performance
High-Pile Carpet Pick-Up

Performance on high-pile carpet is decent. The vacuum is reasonably effective in clearing away large debris like cereal, medium-sized debris like rice, and finer material like sand, even if another pass might be required to clear away everything.

7.5
Performance
Low-Pile Carpet Pick-Up

Debris pickup performance on low-pile carpet is good. The LG's floorhead provides enough surface agitation to remove finer material like sand that's been worked into carpet fibers, and it does an alright job of dealing with medium and large-sized debris like rice or sand.

8.5
Performance
Pet-Hair Pick-Up

This vacuum does an excellent job of handling pet hair on low-pile carpet. It'll clear away all but the most heavily embedded strands of hair within a single back-and-forth pass.

6.3
Performance
Suction
Maximum Hose Suction
119.0 inHโ‚‚O (29.64 kPa)
Maximum Head Suction
3.1 inHโ‚‚O (0.76 kPa)
Normal Head Suction
1.1 inHโ‚‚O (0.27 kPa)
Setting Used For Normal "Normal Mode", (Power Carpet Nozzle)
Hose Diameter
1.2" (3.1 cm)

This vacuum's real-world suction power is unremarkable. While it isn't underpowered for a vacuum of this type, its multi-surface floorhead doesn't generate quite as tight a seal against the ground as similar vacuums like the Dyson V11. In terms of raw suction measured from its wand, however, it delivers great sealing performance.

7.0
Performance
Airflow
Maximum Hose Airflow
53.6 CFM (1.5 mยณ/min)

The LG CordZero A9 has decent airflow. It doesn't pack as big a punch as some newer, pricier models on the market, but it still performs quite well for a cordless model and will have little trouble clearing away heavier debris. If you want a more potent cordless stick vacuum, consider the Dyson V15s Detect Submarine.

8.8
Performance
Noise
Bare Floor
65.8 dBA
Low-Pile Carpet
72.0 dBA

The LG CordZero A9 doesn't make that much noise. In its default power setting, it's quieter than alternatives like the Samsung Jet 70. However, ramping up to the 'Power' and 'Turbo' settings, it does get noticeably louder. Regardless, you can still hear what someone nearby is saying with the vacuum running, though they'll have to speak somewhat loudly.

7.5
Performance
Maneuverability

The LG CordZero A9 has good maneuverability. It's lightweight and has an articulating head, making it easy to clean around furniture. It's also easy to adjust the telescopic wand's height and attach or remove different tools. However, the wand isn't flexible, like on the Shark Vertex Pro Lightweight, so you have to crouch pretty deeply to clean under sofas and low-lying tables. The floorhead's brushroll can get caught in rug tassels or especially dense carpets, requiring you to turn the vacuum off and remove the obstruction. Also, while its storage rack has room for two accessories, accessing whichever tool is mounted at the back can be a little tricky.

8.0
Performance
Pet Hair Furniture Performance
Sofa Pickup Post Test

This vacuum does a great job of handling pet hair on furniture with its Pet Nozzle turbo brush tool. The attachment's silicone fins are highly effective in collecting pet hair without having it get tangled in the mechanism. While the vacuum's performance in this regard is quite good in its default power mode, it's more efficient to use it in its middleweight 'Power' setting, as you'll probably only need to make a single pass to clear away everything.

Performance
Air Quality
Anti-Allergy Filter (HEPA)
Yes

Thanks to its onboard HEPA filter, this vacuum's dustbin is effective in sealing in fine allergens. However, finer particles can still escape from the front of its brushroll.

7.0
Performance
Cracks
Wood Cracks Post Test

The LG CordZero A9 does a decent job of handling debris in crevices with its floorhead. It'll clear away debris in shallow cracks, like what you'd find on tile floors, but it doesn't generate quite as tight a seal as what's needed to draw out debris in deeper cracks. If you're vacuuming deeper crevices, use it in its 'Turbo' setting with the crevice tool.

3.5
Performance
Stains
Stain Pickup Post Test

This vacuum doesn't significantly impact stains when used with its default floorhead. However, the A929KVM variant comes with LG's Power Drive Mop attachment, which uses tap water and a pair of rating mop pads to scrub away dried-on stains.

0
Performance
Water
Wet Compatible
No
Water Pickup Post Test
Automation
0
Automation
Physical Automation
Automatic Recharging
No
Automatic Bag Emptying
No
Pathing Algorithm
No Pathing Algorithm
Physical Boundary Markers
No
Scheduled Start Buttons
No
Cycle Control Buttons
No
Navigation Control Buttons
No
0
Automation
Companion App Automation
App Name
No App
iOS Availability
No
Android Availability
No
Software Boundary Markers (No Go Zones)
No
App Scheduled Start
No
App Cycle Control
No
Navigation Control within App
No