We’ll look closely at the LG CordZero A9 and how it compares to the Dyson V12 Detect – how it compares to the industry standard. Is the LG better than the V12 Detect with all its technology?
I’ve put these vacuums through a series of tests to find out.
This article will start a new series as I compare the LG CordZero A9 to the different Dyson cordless stick vacuums from the V7 to the V15 Detect.
An overview of the LG CordZero A9 and Dyson V12 Detect
Jump to: Introduction, Similarities, Differences, Ergonomics, Interface, Run Time, Airflow, Cleaning, Noise, Maintenance, Noise, Maintenance, Product Specifications, Where to Buy, Which is Better, Verdict
If you’ve shopped for consumer electronic products, LG may be synonymous with washing machines, refrigerators, and AC units.
Only recently did LG start manufacturing cordless stick vacuums, and the CordZero A9 is their first and a good one in specific aspects.
LG’s First Cordless Stick Vacuum: LG CordZero A9
- Above-average deep cleaning performance
- It comes with a dedicated stand for storing the vacuum and tools
- Two batteries
- Adjustable wand
- Nozzles for hard floors and carpets
- Good handheld option with the lightweight body
- It doesn’t steer as well as the Dyson V12
- A bit heavier than the V12 Detect
One feature over the V7 and V8 is the dedicated stand for storing the vacuum and tools, plus a slot for the extra battery without the extra expense.
Consumers will get a bunch of tools out of the box.
Foremost are the two nozzles for vacuuming hard floors and carpets.
Again, the soft roller and standard brush are borrowed concepts from Dyson. One variance is that the V12’s soft roller is slimmer and has a green laser helping it accentuate almost-invisible dust better than any stick vacuum I’ve tested.
LG’s tools are above average, vacuuming surface debris and embedded sand, so it shouldn’t be a deciding factor.
It has an adjustable wand, which can help vacuum stairs more efficiently.
The CordZero’s handle placement is behind the dustbin – more ergonomic in its stick vacuum configuration.
However, it is not as good as a handheld because the rear handheld placement puts a lot of pressure on the arms and wrist, so it can be tiring to use.
One feature it didn’t copy from Dyson is the trigger. LG designers opted to use buttons.
Above the buttons is the battery indicator, letting consumers know how much charge is left.
The CordZero A9 uses 2300 mAh lithium-ion battery and will run for up to 43 minutes – add the extra battery, and it goes up to 86 minutes.
Overall, the LG CordZero A9 is a solid cordless stick vacuum with excellent pick-up without the V12 technology, but slightly cheaper.
Premium Features For Less: Dyson V12 Detect
- Premium features for below-premium price levels
- The hygienic system simplifies the dustbin-emptying process
- Extended run time from the 2500 mAh battery (63 minutes)
- Tracks dust like no other non-Dyson stick vacuum can
- Some sub-models come with two batteries
- Smooth steering
- Excels at cleaning pet hair on fabric upholstery
- Most ergonomic full-sized Dyson stick vacuum option
- Expensive option
- Noisy (especially at the max setting)
One intriguing Dyson option is the V12 Detect. While it doesn’t have the power of the full-sized options [V10 to V15], it makes up for it by being more ergonomic.
In other Dyson comparison articles, I’ve mentioned that it’s one of the best value options since it has its latest features minus the premium cost.
It’s the first Dyson full-sized option with a push-button switch.
This variant is the lightest option, weighing (only) 4 pounds and 9.6 ounces.
You can see the size disparity in this side-by-side photo.
Dyson focused on ergonomics with this model, which is the most significant issue with the V10, V11, Outsize, and V15.
It has similar features as the V15 Detect but a much smaller frame and differing power switch.
My favorite is the laser slim roller, which accentuates dust even in dark areas.
The green laser provides excellent contrast; almost-invisible dust pops compared to a white LED-equipped stick vacuum.
Other helpful tools include the torque screw and light pipe crevice tool, but the attachments will depend on where you purchase them, so always check.
Two compromises include the lack of power and a small dustbin, but from the feedback, these are worth it if you correctly set expectations.
Don’t expect the V12 Detect to deep clean carpet as well as the V15 because it can’t with the smaller motor and V8-styled nozzle.
But for those looking for a lightweight full-sized Dyson option with excellent ergonomics, the V12 Detect is something to consider.
Next, we’ll look at the similarities between these cordless stick vacuums, starting with their versatility.
Thanks to the interchangeable tools and design framework, these products are versatile enough to be used in several configurations (handheld and stick).
Both are lightweight enough to be viable as handheld options, but I’d give the edge to the V12 with its handheld toolset.
2. Power Switch
The Dyson V12 Detect and LG CordZero use push-button switches with varying designs.
LG utilizes a three-button layout on the upper portion of the handle for toggling between the two-power settings and turning on the vacuum.
Dyson puts its switches in a different location – the big red power switch on top and an oval red switch below the LCD screen for selecting the power mode.
3. Detachable Battery
Another similarity is the detachable battery, available in select variants for both.
Detachable batteries are slowly becoming a must-have feature for cordless stick vacuums, and brands like LG and Dyson are slowly implementing them in their products.
One variance is the run time, where the V12 runs further (63 vs. 43 mins).
4. Standard Nozzle
Despite the cosmetic variance, the Dyson V12 and LG CordZero use the same-styled standard nozzle with the chunk brush roll.
The V12 reverted to the V8-style design with a low profile and rubber blade behind the brush, while the A9 CordZero uses a similar-style low profile nozzle but with a felt seal.
The V12 Detect utilizes a one-piece filter with a fully-sealed system, helping it keep allergens inside the dustbin, while LG uses a two-piece system that slightly leaked during the fog test.
One way to test filtration is through a fog test, where I run the vacuums to check if it leaks through the exhaust or openings.
Unfortunately for LG, there were visible leaks in both areas, whereas there were none with the V12.
Let’s look at the variances and potential deciding factors in choosing between these products.
1. Soft Roller Nozzle
While both have a soft roller attachment, their designs vary in size and functionality.
LG’s soft roller is chunky without an LED, so there’s no way of tracking dust.
Dyson’s version has a slimmer profile with the green laser, helping consumers with tracking dust.
2. Dustbin Design
The dustbin design will vary with these stick vacuums – Dyson utilizes a horizontally aligned container, while LG uses a vertically aligned dustbin.
Nonetheless, there’s a slight variance with capacity (0.35 vs. 0.399 liters), so this isn’t a difference maker.
One feature giving the V12 the edge is the hygienic system, helping push dirt downward when emptying.
3. Stand [LG A9 CordZero only]
One feature LG has over Dyson is the storage stand for storing the vacuum, extra battery, and tools.
Another helpful feature is it can charge two batteries simultaneously, so you’ll have something to use when the primary battery runs out.
Consumers will get different toolsets out of the box for these products.
- LG CordZero A9
- Soft roller
- Standard brush roll
- Crevice tool
- Combination tool
- Power punch nozzle
- Two batteries
- Stand dock
- Dyson V12 unit
- Motorbar cleaner head
- Laser slim fluffy
- Hair screw tool
- Light pipe crevice tool
- Mini soft dusting brush
- Stiff bristled brush
- Combination tool
- Under bed attachment
- Extra battery
- Extension wand
- Two battery chargers
Dyson wins this category since it’s got more specialty tools like the toque screw tool that excels in cleaning long hair strands on fabric upholstery.
Always check with the merchant about what tools come before purchasing – just a reminder.
With its lighter and more compact handheld frame, LG wins this category.
While it’s heavier with the nozzle and extension tube, the added weight isn’t a factor since it’s not on the handle.
The V12 is much improved over the V15 Detect with handheld ergonomics.
Another potential deciding factor is the tools, so carefully consider these things if these are enough to compensate for the A9 CordZero’s ergonomic advantages.
Dyson wins this category with its interactive LCD screen that provides real-time data with run time, Piezo readout, and potential error codes.
LG has no screen but only a three-bar LED for the battery status and the three-button power interface.
There isn’t much variance in the battery capacity between the V12 Detect and A9 CordZero (2500 vs. 2300 mAh).
Both use a lithium-ion battery, so neither will fade during the battery’s charge cycle, but the V12 runs longer.
|LG A9 CordZero|
|Cleaning Nozzle||43 mins.||N/A||15 mins.|
|Dyson V12 Detect|
|Hard Floor||63:00 mins||37:50 mins||N/A|
|Carpet||42:00 mins||27:31 mins||6:25 mins|
The V12 runs up to 63 minutes per battery, 20 more than the LG’s 43-minute figure, equating to over 120 minutes for variants with two batteries – compared to LG’s max of 86 minutes.
One advantage of LG is its run time in the max setting at 15 minutes compared to Dyson’s five.
Next, we’ll look at the airflow variance, where the results are mixed.
|LG A9 CordZero|
|Wand||31 CFM||N/A||52 CFM|
|Cleaning Head||24.53 CFM||N/A||36.32 CFM|
|Dyson V12 Detect|
|Wand||27.43 CFM||32.23 CFM||58.74 CFM|
|Cleaning Head||24 CFM||28.52 CFM||48.38 CFM|
The A9 CordZero has more airflow in the lower settings, albeit negligible, but the V12 trumps it in the max setting (up to 28% more).
However, this variance isn’t a factor in the cleaning experiments as both picked up a high percentage.
|Model||Dyson V12 Detect||LG A9 CordZero|
|Hard Floors (Surface Test)||99.8%||99.7%|
|Sand on Hard Floor||99.9%||100%|
|Carpet (Surface Test)||99.45%||99.95%|
Despite the airflow variance in the max setting, the cleaning test results are close – less than one percentage point gap.
So it shouldn’t be a deciding factor since both will pick up debris well.
These results show that the Dyson V12 and LG CordZero are excellent at vacuuming surface debris and embedded stuff (up to mid-pile carpet).
Which option is better on hard floors?
Again, it’s (really) close, even with the sand experiment – both picked up most of it (100% vs. 99.9%).
Here’s a before and after shot for the Dyson V12 Detect.
And LG CordZero.
Even with the eye test, there’s little variance, with both picking up everything in their path.
One aspect consumers should look at is whether they need the laser green sensor or the slim profile of the V12’s fluffy nozzle.
It’s lighter and fits under low overhangs better than LG’s chunkier roller.
Hair Wrap Comparison [on Hard Floors]
Another thing to consider is how well the soft rollers resist tangles.
Please note that both don’t have an anti-tangle system, so these vacuums will rely on airflow to pick up hair.
The Dyson V12 Detect was slightly better, picking up in the high 90s (and some 100s) in most of the experiments.
- 5-inch strands: 96%
- 7-inch strands: 100%
- 9-inch strands: 92.5%
- 11-inch strands: 98%
- 13-inch strands: 100%
However, it’s not perfect, as hair will wrap on the axles since it has a sizable gap.
The LG CordZero didn’t do as well, picking up only in the 90s with five-inch hair but only in the 80s with longer strands.
- 5-inch: 98%
- 7-inch: 81%
- 9-inch: 86%
- 11-inch: 86%
You’ll notice more hair wrapping on the roller, which is easier to clean than trying to dislodge hair on the axle.
Edge Cleaning Comparison
Both cordless vacuums did well, picking up efficiently and leaving almost nothing behind.
First, we’ll look at the before and after shots for the V12 Detect.
And LG A9 CordZero
These are excellent results from the highly efficient soft roller nozzles.
Which is better on carpets?
Like the results on hard floors, this surface has a slight variance. The LG A9 CordZero and Dyson V12 Detect picked up a high percentage – 99s on surface debris and mid-90s with embedded sand (94.75% vs. 94.1%).
It’s that close!
Surprisingly, LG got better scores in the deep cleaning experiment – this shows its standard nozzle has better agitation than the V12 despite having less airflow.
Hair Wrap Comparison [on Carpets]
The V12 Detect did better on hard floors, whereas LG is better on carpets.
The chunkier brush roll is why the V12 has the advantage in other categories like airflow.
- 5-inch: 99%
- 7-inch: 100%
- 9-inch: 100%
- 11-inch: 99%
It picked up in the 99s and 100s across the board, while the Dyson V12 struggled with eleven-inch hair, only picking up 46%.
- 5-inch strands: 100%
- 7-inch strands: 95%
- 9-inch strands: 91%
- 11-inch strands: 46%
However, one plus for the V12 Detect is the torque screw tool, which is excellent at cleaning long hair strands (even high quantities) on fabric upholstery.
Nothing wraps on the brush, even with this much hair.
|Model||LG A9 CordZero||Dyson V12|
|Low||72.0 dB||70.1 dB|
|Max||79.4 dB||80.7 dB|
I used a sound meter beside the vacuum to check for the noise experiment. It’s the most accurate method since you’ll be handling it similarly.
The LG CordZero is the noisier option in the lower setting (over 72 decibels), while the V12 Detect was louder in the boost (or max) setting at over 80 decibels.
But it’s only a slight variance, so I don’t think this is a deciding factor.
- Dyson V6 vs. V8
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- Dyson V8 vs. V15
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- Dyson V10 vs. V15
- Dyson V11 vs. V12
- Dyson V12 vs. Micro 1.5KG
- Dyson V12 vs. Omni Glide
- Dyson V12 vs. V15
- Dyson V12 vs. Outsize
- Dyson V15 vs. Outsize vs. V11 vs. V10
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- Dyson Micro vs. V15 Detect
- Best Dyson Vacuum [Detailed Guide]
- Tineco A11 vs. Dyson V15 Detect
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- LG CordZero A9 vs. Dyson V12
- LG CordZero A9 vs. Dyson V8
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- LG CordZero A9 vs. Dyson V15
- Miele Triflex HX1 vs. Dyson V15
- Miele Triflex HX1 vs. Dyson V12
- Shark vs. Dyson
- Shark ION P50 vs. Dyson V10 vs. V11
Like all cordless stick vacuums, the Dyson V12 Detect and LG A9 CordZero have needed maintenance to last for years.
You’ll be spending a few hundred dollars on these products, so ensuring they last as long as possible makes sense.
- Primary nozzle: Clean the soft roller and standard nozzles weekly to reduce unnecessary wear and friction.
- Dustbin: Empty it after every run so the motor runs efficiently and prevents dust mites from breeding.
- Filter: Wash the filter monthly to prevent too much dust accumulation and degraded performance. I’d advise against washing the pleated portions since these use paper and will degrade with repeated washing.
- Battery: Avoid using the max setting for extended periods to prevent it from overheating and shortening its life.
These cordless stick vacuums are available in online stores like Amazon. Check the links below for the latest pricing information.
Disclaimer: I’ll earn a commission if you purchase through any of the links above, but at no extra cost, so it’s a win for us!
There isn’t much price variance between the LG A9 CordZero and Dyson V12 Detect.
The latter is slightly costlier but has more premium features, a more extended range, and better parts availability, thanks to Dyson’s popularity.
Cleaning performance is nearly identical based on experiments, so consumers must check their feature needs to decide which is better.
4 Reasons to Choose the LG CordZero
- (Slightly) Better Ergonomics: LG’s lighter frame offers better maneuverability in its handheld and stick vacuum configurations.
- Less expensive: Based on what I’ve seen on Amazon, the LG CordZero is cheaper and has less expensive alternatives than the V12 Detect.
- Excellent cleaning performance: Despite the lower airflow, the A9 CordZero picked up (slightly) more than the V12 Detect – a testament to its high-end agitation.
- Better hair pick-up: The CordZero’s standard nozzle did better than the V12 with eleven-inch strands, picking up 99% (vs. the V12’s 46%)
5 Reasons to Choose the Dyson V12 Detect
- More extended range: The V12’s two batteries will run longer than the LG CordZero (63 vs. 43 mins per battery)
- Easier to empty: Its hygienic system has a mechanism for pushing dirt downward.
- Tracks dust: This variant has the laser slim roller, helping it track almost-invisible dust, regardless of the lighting conditions.
- More technology: The V12 Detect is a smaller version of the V15, so it adapts its features without the premium cost.
- Better filtration:
Choosing between the Dyson V12 Detect and LG A9 CordZero will depend on your desired features.
LG’s lighter frame makes it better ergonomically, but not by much since the weight difference is tiny.
The Dyson V12 offers more technology without breaking the bank. If having the latest technology is paramount or needed (like the laser slim roller), the V12 is the better option.
Otherwise, the LG CordZero is a good, less expensive alternative that will vacuum well.