In the specific tested matchup, the Dyson V15 Detect has a slight overall edge over the LG CordZero A9 (A916/A916BM), particularly for floor pickup and bin capacity. The LG can be the better fit if the exact package includes a second battery and longer total cleaning time matters more. These findings compare named models—not every Dyson and LG stick vacuum.
What the head-to-head comparison says
RTINGS’ comparison of the Dyson V15 Detect and LG CordZero A9 A916/A916BM favors Dyson overall. In its test system, Dyson scores higher for bare-floor pickup, low- and high-pile carpet pickup, and pet-hair pickup. The displayed pet-hair furniture result is tied. These are publisher test results, not guarantees for every flooring type, home, or cleaning routine.
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The practical case for Dyson is strongest if you have a mix of hard floors and carpet, deal with pet hair, or prefer a larger dust bin. RTINGS lists the Dyson bin at 0.45 L, compared with 0.35 L for the LG. A larger bin can mean fewer interruptions to empty it, though actual frequency depends on what you clean.
Where LG may be the better fit
Some higher-end LG CordZero A9 configurations include a second battery. That can extend total cleaning time, but it is a bundle benefit rather than a feature to assume across the A9 range. Check the exact model number and box contents, and distinguish runtime on one battery from combined runtime using included batteries.
#1 Best Overall
- Powerful and intelligent for whole-home deep cleaning. Reveals invisible dust.
- 100% more power.¹ 60 minutes of run time.²
- Power trigger helps maximize energy efficiency, only using power where you need it.
- Intelligently adapts power based on debris detected and floor type. LCD screen shows total picked-up particles on-screen as you clean.³ Also displays power mode, maintenance alerts, and remaining run time to the second.
- 2 Advanced cleaner heads. The Fluffy Optic cleaner head reveals invisible dust. Gentle on hard floors but tough on dirt. The Digital Motorbar cleaner head deep cleans all floor types and de-tangles long hair and pet hair as you clean.
There is also a broader brand-level result that points in LG’s direction. CHOICE named LG its best stick-vacuum brand for 2025, with Dyson second, based on a combination of lab results, reliability, and customer-satisfaction surveys. That Australia-based brand ranking covers a broader portfolio and a different question than RTINGS’ specific V15-versus-A9 comparison, so the two results do not conflict.
Dyson V15 Detect and LG CordZero A9 compared
| Comparison | Dyson V15 Detect | LG CordZero A9 |
|---|---|---|
| Exact model in RTINGS matchup | V15 Detect | A916/A916BM |
| Bare-floor and carpet pickup | Higher results in RTINGS’ comparison for bare floors and low- and high-pile carpet | Lower results in those displayed RTINGS categories |
| Pet hair | Higher pickup result in RTINGS’ comparison; tied on furniture | Lower pickup result in RTINGS’ comparison; tied on furniture |
| Bin capacity | 0.45 L, as listed by RTINGS | 0.35 L, as listed by RTINGS |
| Total weight | 2.93 kg in RTINGS’ comparison | 2.71 kg in RTINGS’ comparison |
| Second battery | Not stated for the compared configuration by RTINGS | Included with some higher-end variants; check the exact bundle |
| Included heads and tools | Bundle-dependent; exact contents not stated for the compared configuration | Bundle-dependent; exact contents not stated for the compared configuration |
| Current local price | Not verified; check the exact regional listing | Not verified; check the exact regional listing |
The weight figures above are the totals listed in RTINGS’ matchup; use care when comparing them with a retailer’s figure, which may describe a different configuration or use a different definition of assembled weight. Prices, accessories, and batteries depend on market and bundle.
Rank #2
- Powerful and intelligent for whole-home deep cleaning. Reveals invisible dust.
- 100% more power.¹ 60 minutes of run time.²
- Power trigger helps maximize energy efficiency, only using power where you need it.
- Intelligently adapts power based on debris detected and floor type. LCD screen shows total picked-up particles on-screen as you clean.³ Also displays power mode, maintenance alerts, and remaining run time to the second.
- 2 Advanced cleaner heads. The Fluffy Optic cleaner head reveals invisible dust. Gentle on hard floors but tough on dirt. The Digital Motorbar cleaner head deep cleans all floor types and de-tangles long hair and pet hair as you clean.
How to interpret the advertised Dyson specifications
Dyson’s product listing for a V15 Detect Absolute bundle states up to 60 minutes of runtime, 240 AW of suction in MAX mode, and 99.99% filtration to 0.3 microns. Those are manufacturer specifications for that listed variant, not like-for-like cleaning results against the LG. In particular, the maximum runtime should not be read as expected runtime in MAX mode; mode and use affect runtime. The listed bundle and specifications may also differ by market.
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Why other rankings name different winners
Results depend on what is being compared. Consumer Reports’ 2026 buying guide lists the LG CordZero All-in-One A949KTMS at 80 and the Dyson V15 Detect+ Cordless at 68. Those are scores for separate guide entries, not the LG A916/A916BM and Dyson V15 Detect matchup discussed above. The same guide listed prices of $880 and $750 respectively; they are guide-listed figures, not verified live prices, and should not be treated as current offers or a direct price comparison of the RTINGS models.
Rank #3
- Pioneering Dyson technology, refurbished by our dedicated team of experts. Inspected, tested, and renewed. Guaranteed to our uncompromising standards.
- Powerful and intelligent for whole-home deep cleaning. Reveals invisible dust.
- 100% more power.¹ 60 minutes of run time.²
- Power trigger helps maximize energy efficiency, only using power where you need it.
- Intelligently adapts power based on debris detected and floor type. LCD screen shows total picked-up particles on-screen as you clean.³ Also displays power mode, maintenance alerts, and remaining run time to the second.
Likewise, CHOICE’s 2025 result is a brand ranking, while RTINGS’ result is a model comparison. To make a buying decision, match the evidence to the exact product number and package available where you live.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Which one should you choose?
- Choose the Dyson V15 Detect if the compared cleaning performance on hard floors, carpets, and pet hair is your priority, or you want the larger listed bin.
- Consider the LG CordZero A9 if your local A916/A916BM package—or another clearly identified A9 variant—includes a second battery and total cleaning time is more important to you than the specific RTINGS pickup advantage.
- Compare the exact boxes before buying: confirm model number, included floor heads and tools, battery count, dock or storage setup, and local price. Don’t assume another A9 variant or a different V15 bundle matches the configurations in a test.
Before deciding, consider whether your home is mostly hard floor, carpet, or mixed; whether upholstery and pet hair are regular jobs; and whether you care about runtime per battery or total runtime with a spare. Check local return and warranty terms alongside the sale price.
Quick Recap
Best Value
- Powerful and intelligent for whole-home deep cleaning. Reveals invisible dust.
- 100% more power.¹ Up to 60 minutes of run time.²
- Power trigger helps maximize energy efficiency, only using power where you need it.
- Intelligently adapts power based on debris detected and floor type. LCD screen shows total picked-up particles on-screen as you clean.³ Also displays power mode, maintenance alerts, and remaining run time to the second.
- 2 Advanced cleaner heads. The Fluffy Optic cleaner head reveals invisible dust. Gentle on hard floors but tough on dirt. The Digital Motorbar cleaner head deep cleans all floor types and de-tangles long hair and pet hair as you clean.
Rank #4
- 2 Advanced cleaner heads and 4 attachments to clean up high, down low, and everywhere in between. Plus wall dock and charger.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
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