Quick Comparison: LG Cordzero A9 vs Dyson V15 Detect
Key differences based on real-world performance testing.
LG CordZero A9
Best For: homeowners that need versatile cleaning with more accessories and longer runtime—without the premium Dyson price.
- Dual battery system doubles the rated runtime
- Comes with a soft roller + standard brush
- Excellent cleaning performance on hard floors and carpets
- Flexible toolset help users adapt to different cleaning needs
- Lower peak suction compared to flagship models like the V15
- Deep carpet cleaning is good but not class-leading
- Slightly leaked during the fog test
- Chunky soft roller nozzle
- Airflow [Max at Nozzle]: 52 CFM
- Cleaning [Overall]: 98.6%
- Deep Cleaning: 94.75%
- Run Time: 43:00 mins
- Noise: 79.4 dB
- Weight: 5.6 lbs (w/ tube & nozzle)
Dyson V15 Detect
Best For: homes with carpets, pets, and fine dust where maximum cleaning performance matters most.
- Outstanding deep carpet cleaning performance
- Laser slim nozzle reveals hidden dust on hard floors
- Run time exceeds 80 minutes
- Top-tier airflow
- Slimmer nozzle profile will fit in low clearance areas
- Heavier than mid-range models
- Overkill for users with mostly light-duty cleaning needs
- Expensive compared to most competitors
- Airflow [Max at Nozzle]: 73 CFM
- Cleaning [Overall]: 99.91%
- Deep Cleaning: 100%
- Run Time: 84:19 mins
- Noise: 80.8 dB
- Weight: 6.8 lbs
⚡ Quick Verdict
👉 Choose the LG CordZero A9 if: you want a more flexible, value-focused cordless system with dual batteries for longer total runtime, solid all-around cleaning performance, and a more versatile package out of the box.
👉 Choose the Dyson V15 Detect if: you want top-tier suction, smarter cleaning technology, and the strongest overall performance—especially for deep cleaning carpets and detecting fine dust.
Bottom line: The Dyson V15 Detect delivers better raw performance and advanced features, making it the stronger cleaner overall—while the LG CordZero A9 offers better value, dual batteries, and more versatility for everyday use.
Watch Video Comparison
Introduction to the LG CordZero A9 and Dyson V15 Detect
Continuing my series on LG and Dyson, we’ll look at how the CordZero A9 compares to the premium V15 Detect.
Since Dyson introduced the V10 Absolute, they’ve focused their R&D solely on cordless vacuums, and the V15 possesses all the latest features.
This model isn’t the latest with the pending release of the Gen5 Detect, Dyson’s most powerful cordless vacuum to date, but there’s not much variance from what I’ve seen in the advertorials.
Of course, that can change once I get the product and test it, but I’m still waiting for it to be available here before purchasing, so stand by for that review.
Premium, High-Tech: Dyson V15 Detect
Dyson launched the V15 with several groundbreaking features, like the laser slim roller and torque screw tool.
The laser slim roller uses an industry-first green laser to illuminate dust and accentuate it better than any LED-equipped stick vacuum I’ve tested.
Dust is visible without additional lighting thanks to the sharp contrast of green light.
This feature helps make vacuuming efficient – here’s the after photo.
Another innovation is the Piezo sensor showing debris size and quantity.
Precisely, it measures four debris sizes and displays the quantity in real time on the LCD screen behind the motor.
The round silver button toggles between the three power settings (eco, auto, boost).
Below is the Piezo readout, which shows the battery status—how much run time is left.
The next upgrade is the High Torque attachment with the same adjustable gates, which now has combs above the brush roll to help untangle hair.
I’ve tested it on hair strands between five and thirteen, and it excelled, achieving a high percentage (see below).
Another attachment that helps it clean hair is the torque screw tool with the tapered brush.
It picked up everything, even large quantities of long hair strands.
The tapered brush funnels hair into a holding area, then into the dustbin—a clever design I haven’t seen before.
More Basic: LG CordZero A9
A more basic option is the LG CordZero A9. While it doesn’t have the V15’s bells and whistles, this model is less expensive than its premium counterpart.
You can see traces of the Dyson V8 in its design, like the vertically aligned dustbin, soft roller, and standard brush roll design.
But LG didn’t blatantly copy Dyson, and it added its (own) touches.
An obvious one is not using a trigger but a three-button interface behind the handle.
This provides consumers easy access to the power switch, and it’s less tiring to use since there’s no trigger to squeeze.
In front of the switches is a 3-LED battery indicator. Not high-tech, but at least you can see the battery status.
It has two separate nozzles for vacuuming hard floors and carpets.
LG designed its version of the soft roller and standard nozzle. The design looks similar to the Dyson V8, but the CordZero’s version is better at cleaning hair on carpets!
These tools compensated for the A9’s low airflow with their high-end agitation and picked up a higher overall percentage than the V12 Detect.
It won’t match the V15 Detect with either surface or embedded debris, but it’s not far off.
And with its lower price point, this variant is worth considering for budget-conscious shoppers.
Similarities between the LG CordZero A9 and Dyson V15 Detect
Next, we’ll look at the similarities between these products.
1. Versatility
Though these products don’t look alike, both are versatile enough for cleaning upholstery and floors, thanks to the interchangeable tools.
The CordZero’s lighter frame gives it the advantage over the bulky V15 Detect, making it more ergonomic for upholstery or any areas above floors.
However, Dyson comes with more tools out of the box, and this variant includes the latest attachments, such as the torque screw tool.
2. Purpose-Built Nozzles
Both feature purpose-built nozzles: a soft roller and a standard brush roll for cleaning hard floors and carpets.
One variance is peripheral features like Dyson’s laser slim roller.
LG’s soft roller is chunkier with the same profile as the Dyson V8. It doesn’t have any additional illumination to help track dirt.
Dyson’s High Torque nozzle has adjustable gates, while the LG’s doesn’t.
3. Sharp Steering
LG is one of a few brands that match Dyson cordless stick vacuum steering—specifically, how sharp it turns.
The photo above shows a side-by-side photo of the LG CordZero A9 (right) and the Simplicity S65 (left).
LG doesn’t turn as sharply, but it’s pretty close.
One disadvantage of the CordZero A9 is its bulky soft roller attachment that won’t fit under low clearance overhangs compared to the V15’s slim profile roller.
4. Battery Detachability
Both have detachable batteries, enabling consumers to double the run time by purchasing an extra.
Most CordZero options come with two batteries out of the box, but the V15 Detect runs much longer per battery.
Differences between the LG CordZero A9 and Dyson V15 Detect
While these vacuums share the same versatility, there’s a lot of variance with their designs, starting with the dustbin.
1. Dustbin
One of the most noticeable variances between the LG CordZero A9 and Dyson V15 Detect is the dustbin orientation and capacity.
LG utilizes an older-designed vertically aligned dustbin with only 0.399 liters, while Dyson almost doubles that at 0.77 liters.
Another plus for the V15 Detect is its hygienic system, which features a built-in mechanism that pushes dirt downwards.
The CordZero A9 doesn’t have this feature, but select variants (A927KVMS) do, increasing capacity up to 2.4 times.
2. Power Switch
Another variance is the power switch: Dyson’s trigger vs. LG’s three-button switch.
I like LG’s design better because there’s no need to continually squeeze a trigger, which can be tiring when vacuuming for long stretches.
3. Battery Status
Dyson was one of the first brands to introduce real-time runtime status on an LCD screen with the V11, and that trend continues in the V15 Detect, where a timer is shown beneath the Piezo readout.
Unfortunately, LG doesn’t have this feature but only has a 3-LED indicator showing the battery status, so there’s less precision.
4. Filter and Filtration
Dyson cordless stick vacuums from the V10 onwards use a single-piece filter where the pre and post-motor elements are fused.
All its products after the V10 utilize the same design, albeit in differing sizes.
Another aspect going for Dyson is the seals, which are (probably) the best in the industry, as they didn’t leak during the fog test.
LG’s filter isn’t as thick or the seals robust since there were visible leaks during the fog test.
The CordZero A9 utilizes a two-piece system, but the seals aren’t as good.
Here’s a close-up of the primary filter.
And the HEPA filter.
Only the primary filter is washable with its cloth material, but the HEPA filter is not, so please take note.
Ergonomics Comparison
LG’s lighter body gives it a considerable advantage in this category, despite having the same weight (around 6 lbs).
Most of the CordZero’s weight is at the bulkier nozzle attachment, so that doesn’t affect the handle weight.
The V15’s larger dustbin makes it more top-heavy, and consumers will feel the added bulk when cleaning for longer stretches, especially on carpets where the steering isn’t as light.
Interface Comparison
The photo above summarizes the technological differences between the CordZero A9 and V15 Detect.
LG uses simpler tech with a three-button interface for power and toggling between two suction settings, while the V15 has only a single button and an interactive LCD screen.
Dyson’s LCD screen displays the Piezo readout, runtime status, current power setting, and error codes (if triggered).
It’s more precise, especially in terms of how much runtime is left, giving consumers a heads-up when to recharge.
LG’s 3-LED battery indicator is decent but not as accurate.
Battery and Run Time Comparison
The V15 Detect wins this category thanks to its larger 3600 mAh lithium-ion battery.
Dyson has improved its battery tech with every subsequent release, introducing more energy-dense versions that run longer.
| Power Setting | LG CordZero A9 | Dyson V15 |
|---|---|---|
| Non-Powered Tool Only | ||
| Low (hh:mm:ss) | 43:00 | 1:24:19 |
| Mid/Auto (hh:mm:ss) | 0:00 | 41:30 |
| High (hh:mm:ss) | 15:00 | 13:44 |
| Nozzle Only | ||
| Low (hh:mm:ss) | 0:00 | 56:58 |
| Mid/Auto (hh:mm:ss) | 0:00 | 17:23 |
| High (hh:mm:ss) | 0:00 | 11:02 |
While LG runs longer, combining the two batteries (86 minutes), the V15 Detect is much better per battery (84++ mins).
Another advantage is the middle setting, where a sensor boosts suction when it detects more debris.
However, LG runs further in the max setting (15 vs. 11 mins), which is a big surprise for me during the experiments.
Airflow Comparison
Next, we’ll look at airflow, where I use an anemometer to check air turbulence flowing through the wand and nozzle.
It indicates how well a cordless vacuum will clean, especially on carpets.
Here are the results for the LG CordZero A9 and Dyson V15 Detect.
| Power Setting | LG CordZero A9 | Dyson V15 |
|---|---|---|
| Airflow at the Nozzle | ||
| Low (CFM) | 24.53 | 29.98 |
| Mid/Auto (CFM) | 36.32 | |
| High (CFM) | 36.32 | 69.19 |
| Airfow at the Wand | ||
| Low (CFM) | 31.00 | 34.55 |
| Mid/Auto (CFM) | 42.38 | |
| High (CFM) | 52.00 | 73.00 |
There’s a noticeable variance between these cordless vacuums. Dyson has (more than) 33% more at the extension tube and a whopping 62% more at the nozzle.
This variance is seen (mostly) in the carpet cleaning experiments where the V15 Detect excels.
Cleaning Comparison
| Surface Tested | LG CordZero A9 | Dyson V15 |
|---|---|---|
| Overall (%) | 98.60 | 99.91 |
| Hard Floor (%) | 99.70 | 99.85 |
| Sand on Hard Floor (%) | 100.00 | 99.80 |
| Carpet (%) | 99.95 | 100.00 |
| Deep Cleaning (%) | 94.75 | 100.00 |
| Hair Pickup (%) | 93.26 | 97.76 |
Despite the airflow variance, there isn’t much disparity between the CordZero and V15 Detect with vacuuming experiments.
The LG CordZero held its own, especially with surface debris tests, where it picked up in the high 90s.
Which is better on hard floors?
One metric I use is the sand-on-hard-floor test, where the CordZero scored higher—albeit only 0.2% better.
Here’s a before-and-after shot for the LG CordZero A9.
And the Dyson V15 Detect.
There’s not much variance in the eye test, as these products got nearly everything right.
In my opinion, the 0.2% difference is negligible, and both nozzles are highly efficient at debris pickup, even on difficult materials like sand.
Consumers should consider factors such as roller size and whether they need the green laser for tracking dust.
Hair Wrap Comparison [on Hard Floors]
Next, we’ll look at how these products fared for cleaning hair, starting with the V15 Detect, which was excellent, despite lacking an active anti-tangle system.
- 5-inch: 100%
- 7-inch: 100%
- 9-inch: 100%
- 11-inch: 100%
- 12-inch: 80.6%
The V15 slim roller was excellent at picking up hair, even long strands over 9 inches, except for 12-inch strands, where hair wrapped around the roller and axle.
- 5-inch strands: 98%
- 7-inch strands: 81%
- 9-inch strands: 86%
- 11-inch strands: 86%
LG didn’t do as well, only picking up in the 80s with hair strands above five inches. Low airflow is a factor in these tests, since neither product has an active anti-tangle system.
Edge Cleaning Comparison
There’s not much variance between the LG CordZero A9 and Dyson V15 Detect, as both picked up efficiently.
Here’s a before-and-after shot for the CordZero A9.
And Dyson V15 Detect.
The eye test confirms this, as both got everything from this area.
Which is better on carpets?
The Dyson V15’s higher airflow was a significant factor in its performance on this surface.
It got a perfect 100% on surface debris and embedded sand, even in the middle setting for the latter, while the CordZero A9 only got 94.75% – a decent score given its airflow limitations.
Hair Wrap Comparison [on Carpets]
Dyson’s upgraded brush roll, with its combs and chunkier brush roll, gives it a significant advantage over most cordless stick vacuums, along with its airflow variance.
It was (almost) perfect at picking up hair, even long strands.
- 5-inch strands: 100%
- 7-inch strands: 100%
- 9-inch strands: 100%
- 11-inch strands: 99%
- 12-inch strands: 98%
Even with long eleven- and twelve-inch strands, it reached nearly 100%, which bodes well for pet owners, given the torque screw tool’s efficiency.
Surprisingly, LG was excellent, also reaching the high 90s and 100s across all experiments.
- 5-inch strands: 99%
- 7-inch: 100%
- 9-inch: 100%
- 11-inch: 99%
There wasn’t much visible hair wrap on its chunky brush roll, so kudos to LG for this feat.
Noise Comparison
| Power Setting | LG CordZero A9 | Dyson V15 |
|---|---|---|
| Low (dB) | 72.00 | 70.30 |
| Mid/Auto (dB) | 72.30 | |
| High (dB) | 79.40 | 80.80 |
Even with the airflow disparity, there isn’t much noise variance. The V15 Detect is (obviously) the noisier option, but the LG CordZero A9 isn’t far off – only a few decibels difference.
So it’s a win for Dyson in this category, even if it’s (technically) louder.
More Dyson Comparison Articles
- Dyson V6 vs. V8
- Dyson V6 vs. V10
- Dyson V7 vs. V8
- Dyson V7 vs. V10
- Dyson V7 vs. V12
- Dyson V8 vs. V10
- Dyson V8 vs. V12
- Dyson V8 vs. V15
- Dyson V10 vs. V11
- Dyson V10 vs. V12
- 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
- Dyson Micro vs. Omni Glide
- Dyson Micro vs. V15 Detect
- Best Dyson Vacuum [Detailed Guide]
Dyson Versus Other Brands
- Tineco A11 vs. Dyson V15 Detect
- Tineco Pure One S12 vs. Dyson V15 Detect
- LG CordZero A9 vs. Dyson V12
- LG CordZero A9 vs. Dyson V8
- LG CordZero A9 vs. Dyson V10
- 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
Maintenance
All cordless stick vacuums need maintenance to function efficiently for years.
You’ll spend (easily) a few hundred dollars on these products, and caring for them makes sense to ensure they last as long as possible.
- Primary nozzles: This component is the most abused and requires the most frequent maintenance —at least weekly. Fortunately, these brushes are detachable and straightforward to clean. Remove dust and hair build-up, especially on the axles, to prevent premature wear.
- Dustbin: Empty the contents after every run to prevent debris from clogging the filter and dust mites from breeding.
- Filter: Clean the primary filter monthly to maintain performance.
- Battery: Avoid using the max setting for extended periods to lengthen the battery’s service life. Using it in this setting overheats the battery, shortening its lifespan.
Spec Comparison
| Model | LG CordZero A9 | Dyson V15 |
|---|---|---|
| LED Headlights | No | Yes |
| Adaptive Suction | No | Yes |
| Soft Roller | ||
| Soft Roller? | Yes | Yes |
| Battery | 2300 mAh | 3600 mAh |
| Recharge (hrs) | 4 hrs | 4.5 hrs |
| Dustbin Capacity | 0.39 liters | 0.77 liters |
| Weight | 5.6 lbs | 6.8 lbs |
| Warranty | 2 yrs | 2 yrs |
Where can I purchase the LG CordZero A9 and Dyson V15 Detect?
These products 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!
Which offers the better value?
The answer will depend on the price variance, which varies by season.
If it’s below $100, I’d bite the bullet and spend more on the Dyson V15 Detect because it offers more technology, lasts longer, and cleans carpets better.
Otherwise, LG’s cleaning performance is decent for consumers who want something cheaper and do not mind the simpler technology.
5 Reasons to choose the Dyson V15 Detect
- More technology: The V15 Detect is packed with features like the Pieze sensor, laser slim roller, and LCD screen.
- Runs longer: Its energy-dense lithium-ion battery will run longer (over 84 mins) per charge, nearly doubling LG’s output.
- Better carpet cleaning performance: The V15’s higher airflow enables it to clean carpets better, even embedded sand at the auto (or middle) setting.
- Tracks dust: The laser slim roller’s green light embellishes almost-invisible dust particles better than any LED-equipped stick vacuum.
- Torque screw tool: This attachment is highly efficient at removing long hair from fabric upholstery.
Reasons to choose the LG CordZero A9
- Cheaper option: The CordZero A9 is less expensive than the V15 Detect.
- Above-average cleaning: Despite the lower airflow, the CordZero A9 picks up debris well and is not far off the V15.
- Two batteries: Most sub-variants come with two batteries, mitigating the shorter run time per battery.
- Good at cleaning hair: LG’s standard brush roll is (surprisingly) excellent at picking up long hair strands, with only a few strands wrapping on the brush roll above nine inches.
- Storage stand: It comes with a stand for storing the vacuum vertically (plus tools) and a slot for charging an extra battery.
The Verdict: Dyson Offers More Value
Despite being the more expensive option, the Dyson V15 Detect offers more for your dollar.
It has Dyson’s latest technology: a piezo sensor, a laser slim roller, an interactive LCD screen, real-time runtime and debris counter data, and more.
If the price variance is around $100 or $150, I’d go with the Dyson because it performs better, especially for vacuuming carpets with its higher airflow.
LG’s option isn’t bad. It’s quite good for a first product.
Consumers will enjoy efficient cleaning performance on hard floors and carpets at a lower-than-premium cost.
The lighter frame makes it more ergonomic to hold, but it won’t clean carpet as well for longer stretches.
So you’ll have to weigh what to prioritize and budget.