Cordless Vacuums · Head-to-head
LG CordZero A925 vs Dyson V15 Detect Plus: Where the Extra $350 Goes
Both are do-it-all cordless sticks with a motorized pet tool, an anti-tangle brush, and fully sealed HEPA filtration — so shoppers usually land here torn between Dyson's name and headline suction figure and the LG's lower price. On paper the Dyson looks like the flagship. The scores tell a more complicated story, and most of it comes down to runtime, weight, and what you actually get for $750.
The short answer
Pick the LG CordZero A925 if runtime is what you are buying for — 9/10 against 4/10, and it is the cheaper of the two by $350.
Pick the Dyson V15 Detect Plus if you find it cheaper on the day: the engine scores them level on every dimension.
LG
Our pickCordZero A925
Two swappable batteries: 120 minutes of real runtime
Typical price
$400
7.7
/10 overall
Dyson
V15 Detect Plus
Laser illumination and 240 AW in the classic V-series body
Typical price
$750
5.7
/10 overall
Scores side by side
| Dimension | LG CordZero A925 | Dyson V15 Detect Plus |
|---|---|---|
| Suction | ||
| Runtime | ||
| Handling | ||
| Overall |
Key specs
| Spec | LG CordZero A925 | Dyson V15 Detect Plus |
|---|---|---|
| Suction (advertised) | not published | 240 AW |
| Max runtime | 120 min | 60 min |
| Weight | 5.9 lb | 6.8 lb |
| Filtration | Sealed HEPA | Sealed HEPA |
| Dock | Charging dock | Freestanding / wall mount (no dock) |
| Typical street price | $400 | $750 |
Suction: one number published, one not — same score
Dyson publishes 240 air watts; LG publishes no suction figure at all. That gap looks decisive until you notice the engine scores both at 7/10. Air watts (Dyson) and kPa (most rivals) measure different things, so an AW number never proves more real-world pickup than a brand that reports differently — or, here, reports nothing. On carpet and hard floor the two clean comparably. Dyson's spec buys brand confidence and its dust-detection readout, not measurably stronger suction than the cheaper LG.
Runtime and weight: where the scores split
Here the engine diverges hard: LG runtime 9/10, Dyson 4/10. Both quoted figures — LG's 120 minutes, Dyson's 60 — are eco-mode, non-motorized-tool numbers; switch to Boost with the powered brush and each drops to single-digit minutes. The difference is that the LG carries swappable batteries to extend a session, while the Dyson runs down and needs a recharge. Weight compounds it: 5.9 lb versus 6.8 lb (handling 7 vs 6). That 0.9 lb is felt on stairs and overhead.
Filtration ties; dock and price don't
Filtration is a genuine wash — both seal HEPA, so allergy buyers can stop comparing there. The split returns on storage and money. The LG parks in a freestanding charging dock; the Dyson ships without one, so it lives on a wall mount you drill in or leans in a corner. Then the price: $400 versus $750. The cheaper vacuum posts the higher overall score (7.7 vs 5.7). You pay $350 more for the Dyson name and readout, and give up runtime, a dock, and a pound of reach.
Choose the LG CordZero A925 if…
- Higher overall score: 7.7/10 against 5.7/10
- Better runtime: 9/10 against 4/10
- Better handling: 7/10 against 6/10
- Costs $350 less: $400 against $750
Choose the Dyson V15 Detect Plus if…
- Nothing in the scored data favors it — the LG CordZero A925 matches or beats it on every dimension and does not cost more
Verdict
For almost everyone cross-shopping these, the LG CordZero A925 is the smarter buy: it matches the Dyson on the engine's suction score, runs far longer, weighs less, docks itself, and costs $350 less — hence the 7.7 vs 5.7 overall. Pick the Dyson V15 Detect Plus only if you specifically want its dust-detection readout and published suction spec, clean smaller spaces where short runtime is a non-issue, and don't mind wall-mounting. It's the pricier, heavier tool that the numbers here don't reward.
Still not sure?
Answer a few questions about your space and how you will use it, and the engine narrows the whole catalog down to the cordless vacuum that fits.
See also
Scores come from published manufacturer specs, normalized 1 to 10 across the whole catalog: suction (suctionAw, AW), runtime (runtimeMin, min), handling (weightLb, lb). The overall figure is the weighted mean of those dimensions, and the same weights apply to every model on the page.
Amazon links are affiliate links (tag: habilytics-20), at no extra cost to you. Scores and selection are computed from verified specs and never influenced by commissions.