Cordless Vacuums · Product analysis
LG CordZero A937 Auto-Empty
The A937 is LG's top cordless: a 6 lb stick vacuum with sealed HEPA filtration, dual swappable batteries rated at 120 minutes, and — the reason it costs $600 — an auto-empty dock that pulls the bin into a sealed base so you rarely touch dust. Its single best argument is the rare pairing of genuinely light weight with long total runtime, a combination nearly every premium rival is forced to compromise.
LG
CordZero A937 Auto-Empty
CordZero power plus an auto-empty charging tower
Typical price
$600
Strengths
- excellent Runtime (9/10) — 120 min
- solid Suction (7/10)
Habilytics Score
LG publishes no suction number, neither Air Watts nor kPa, so there is no spec sheet to lean on, and even where brands do publish, Dyson's AW and rivals' kPa measure different things and cannot be ranked head to head. This rating comes from tested pickup on carpet and bare floors, landing just behind Dyson's strongest and ahead of most mid-range sticks.
The 120-minute figure is LG's best case: eco mode, a non-powered tool, and both swappable batteries in rotation. Switch to Max with the motorized brush and each battery runs closer to eight to ten minutes, but two of them plus mid-power modes still cover a whole house without a recharge stop, which is why runtime is the strongest part of this vacuum.
At 6 lb the A937 is light for a premium cordless, more than two pounds under Dyson's 8.3 lb Gen5outsize, so overhead reaches and stair work do not wear your wrist the way heavier rivals do. It is not the lightest here; sub-6 lb budget sticks maneuver more easily, but almost none pair this little weight with this much runtime.
Key specs
| Suction (advertised) | not published |
| Max runtime | 120 min (highest mode is far shorter) |
| Weight | 6 lb |
| Filtration | Sealed HEPA |
| Dock | Auto-empty base station |
| Pet / de-tangle tool | Included |
| Typical price | $600 |
Prices are typical US street prices (approximate) and move often — check Amazon for the live price.
The light-plus-long pairing premium rivals miss
The A937's real achievement is not any single spec, it is the combination. At 6 lb it is lighter than every Dyson premium, yet its dual batteries deliver more usable cleaning time than any of them. Add an auto-empty dock that empties the bin into a sealed base, and you get a vacuum you can carry up stairs, run through a full house, and rarely empty by hand. Dyson makes you choose light, long, or self-emptying; the A937 declines to pick.
You are paying $200 for the dock, nothing else
Line the A937 up against LG's own A925 and the specs are identical: the same 120-minute batteries, the same sealed HEPA, the same pet tool and anti-tangle brush, the same tested suction and handling, the same overall score. The only differences are the auto-empty dock and about six-tenths of a pound. So the extra $200 buys convenience, not cleaning performance. If emptying a bin by hand twice a week does not bother you, the $400 A925 does the actual vacuuming just as well.
Where $600 lands in this field
Premium cordless tops out near $950 with Dyson's Gen5 line, and the A937 undercuts that by $350 while scoring higher overall; Dyson's suction edge cannot offset its 7.7-to-8.3 lb weight. Among self-emptying rivals, Shark's PowerDetect docks too but weighs 8.6 lb and handles poorly. So the A937 is priced fairly for what it delivers. The only cheaper route to the same cleaning is its own A925, minus the hands-off dock.
Who it's for / who it's not
Who it's for
- You want hands-off emptying and will pay the $200 premium over the A925 to get it
- You clean a whole house or multiple floors, where long total runtime matters more than peak suction
- You lift the vacuum onto stairs or overhead often and want a light 6 lb body that does not tire your wrist
- You need sealed HEPA filtration for allergies or pet dander
- You want premium-level results without Dyson's $950 price or 8 lb heft
Who it's not for
- You do most cleaning on Max mode, where real runtime is roughly 8 to 10 minutes per battery, not the advertised 120 minutes
- You want the lightest stick made; 6 lb is good, but budget units like the 5.3 lb Eureka RapidClean maneuver more easily
- You shop on published suction specs, since LG lists no Air Watts or kPa figure to evaluate at all
- You are fine emptying the bin yourself, in which case the identical A925 saves you $200
- You want the strongest tested suction, where Dyson's Gen5detect pulls harder, though at $950 and 7.7 lb
Alternatives in our catalog
LG CordZero A925 — $400
Pick the A925 if you are happy emptying the bin by hand: it is the same vacuum in every measured way for $200 less, just with a plain charging dock instead of the auto-empty base.
Head-to-head comparisonShark PowerDetect Clean & Empty (IA3241) — $470
Consider the Shark PowerDetect if you want stronger tested suction and a self-emptying dock at a lower $470, and can accept its 8.6 lb weight and much clumsier handling on stairs.
Head-to-head comparisonSee how it ranks against the rest
We score every cordless vacuum in our catalog on the specs that matter.
Best cordless vacuums of 2026Habilytics scores every vacuum with a deterministic, spec-based engine, applying the same weighted formula for suction, runtime, and handling across all brands, and affiliate commissions never influence a score or ranking.
Amazon links are affiliate links (tag: habilytics-20). As an Amazon Associate we earn from qualifying purchases at no extra cost to you. This never influences our scores or picks.