LG CordZero A937 Cordless Stick Vacuum

3.7

(11)

Bottom Line

Choose if you want a quiet cordless that auto-empties and excels on carpets. Skip if your cleaning is mostly hard floors with larger crumbs, or if paying a premium for bagged auto-empty convenience is not worth it to you.

Best for

Carpet- and rug-heavy homes (especially with pets) that want hygienic bagged auto-empty convenience, tool storage, and the flexibility of two swappable batteries for frequent quick cleanups.

Not for

Mostly hard-floor homes that regularly deal with chunky debris like cereal or kibble, or shoppers who want a simpler, lower-maintenance stick without bag costs and potential tower/service reliability headaches.

Verdict

The CordZero A937 stands out for day-to-day convenience: a freestanding all-in-one tower stores tools, charges a spare battery, and can auto-empty to a bag, which many reviewers find far cleaner than dumping a cup. The strongest results show up on carpets and rugs, and the mini and pet tools earn praise for upholstery and fur. The main tradeoff is smooth-floor pickup of larger debris, where multiple tests and owners report pushing, clogging, or needing tool swaps. Reliability is also inconsistent, with repeated reports of tower, latch, and motor issues. Review evidence sourced from provided review transcripts.

Pros

Noise level 4.6 ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ 6 reviews 4.6

Noise is a standout strength: measured levels are relatively low on standard modes and many users describe it as quieter than competing cordless sticks.
Aesthetic design & finish 4.6 ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ 4 reviews 4.6

Many reviewers like the sleek, premium look of the vacuum and tower and feel comfortable leaving it out rather than hiding it in a closet.
Cyclone performance 4.6 ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ 1 review 4.6

Testing notes the multi-cyclone design helps keep fine debris from loading up the prefilter quickly, supporting steadier suction on dust-heavy jobs.
Cordless convenience 4.6 ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ 11 reviews 4.6

Cordless convenience is consistently praised thanks to swappable batteries, a dock that charges the spare, and easy grab-and-go daily cleaning.
Ease of use 4.5 ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ 4 reviews 4.5

Day-to-day use is often described as easy thanks to button controls and docked charging/storage, but some friction points include tower doors, app extras, and hard-floor technique.
Convertible handheld design 4.5 ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ 6 reviews 4.5

The vacuum converts quickly to a handheld for cars, stairs, upholstery, and tight spots, and this flexibility is repeatedly called out as a key benefit.
Maneuverability & Handling 4.4 ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ 3 reviews 4.4

Handling is generally light and balanced with good swivel action, though the floorhead behavior on hard floors can reduce the feeling of effortless maneuvering for larger debris.
Accessories & Tools 4.4 ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ 8 reviews 4.4

Reviews highlight a generous accessory set (including mini motorized and mop options) with convenient storage, but some shoppers report confusion about what is included or wish for additional hard-floor heads.
Pet-Ready Features 4.3 ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ 5 reviews 4.3

Pet tools and carpet cleaning earn frequent praise for picking up fur, but heavy shedding can contribute to clogs and some owners report the base or chute struggling with pet hair.
Emptying & Mess Control 4.3 ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ 10 reviews 4.3

The auto-empty tower is a major convenience and helps avoid dust clouds, but reliability is inconsistent with reports of incomplete emptying, jams, or messy failures.
Hair Pickup — Carpets 4.3 ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ 4 reviews 4.3

Carpet hair pickup is frequently praised, especially with the mini/pet tools, though occasional tangling and maintenance is still reported with long hair.
Battery & Charging 4.3 ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ 10 reviews 4.3

Dual batteries and a tower that charges the spare are major positives, but real-world longevity varies and some owners report batteries that degrade, fail, or do not meet advertised claims.
Under-Furniture Pickup 4.3 ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ 3 reviews 4.3

Several reviews praise the low-profile reach for getting under furniture and the flexibility to clean along edges and into tighter spaces.
Upholstery / Above-Floor Pickup 4.3 ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ 3 reviews 4.3

Above-floor performance is a strong point: mini motorized tools and crevice attachments are praised for sofas, stairs, vehicles, and tight spots.
Crevice / Groove Pickup (Hard Floors) 4.2 ★ ★ ★ ★ ★ ★ ★ ★ ★ 3 reviews 4.2

Crevice tool results are generally strong, with tests showing good extraction of sand/flour from grooves and owners using it to compensate for chunky-debris issues.
Carpet — High-Pile Pickup 4.2 ★ ★ ★ ★ ★ ★ ★ ★ ★ 3 reviews 4.2

High-pile and rug cleaning is generally a strength, with good pickup scores and strong pet-fur results compared with its hard-floor chunky-debris performance.
Carpet — Medium-Pile Pickup 4.2 ★ ★ ★ ★ ★ ★ ★ ★ ★ 2 reviews 4.2

Deep-clean tests on carpet show above-average pickup for embedded debris, supporting strong performance on typical medium-pile household carpets.
Suction & Airflow 4.2 ★ ★ ★ ★ ★ ★ ★ ★ ★ 8 reviews 4.2

Across tests and owner reports, suction feels strong on carpet and rugs, but overall performance is inconsistent on hard floors and some users report suction drop-offs over time.
Tool-change simplicity 4.2 ★ ★ ★ ★ ★ ★ ★ ★ ★ 7 reviews 4.2

Attachments generally click on and off quickly, and the tower storage keeps tools handy, though some reviewers dislike having to swap tools to handle hard-floor debris well.
Maintenance requirements 4.2 ★ ★ ★ ★ ★ ★ ★ ★ ★ 5 reviews 4.2

Washable filters and accessible rollers help, but owners frequently mention hands-on maintenance such as unclogging, cleaning passages, and replacing bags.
Water tank 4.2 ★ ★ ★ ★ ★ ★ ★ ★ ★ 2 reviews 4.2

The mop attachment tank is easy to fill and includes adjustable flow settings, though capacity is limited as expected for an add-on tool.
Carpet — Low-Pile Pickup 4.1 ★ ★ ★ ★ ★ ★ ★ ★ ★ 1 review 4.1

Low-pile carpet pickup scores well in testing and is commonly described as reliably strong for everyday carpet cleaning.
Weight 4.1 ★ ★ ★ ★ ★ ★ ★ ★ ★ 3 reviews 4.1

Weight is around the mid-5 lb range; many find it manageable, but whole-home sessions can still feel tiring compared with lighter sticks.
Controls & UI 4.1 ★ ★ ★ ★ ★ ★ ★ ★ ★ 8 reviews 4.1

Button-based controls (no trigger) are often described as ergonomic, but some dislike long-press behavior for max power and the overall number of modes and indicators.
Hair Pickup — Hard Floors 4.0 ★ ★ ★ ★ ★ ★ ★ ★ ★ 2 reviews 4.0

Hair pickup on hard floors is usually effective, though long strands and fuzz can still contribute to tangles or clogs that require cleanup.
Packaging quality 4.0 ★ ★ ★ ★ ★ ★ ★ ★ ★ 2 reviews 4.0

Packaging is usually adequate, but there are reports of cracked or damaged tower components arriving out of the box.
Debris illumination 4.0 ★ ★ ★ ★ ★ ★ ★ ★ ★ 1 review 4.0

Debris illumination is inconsistently reported: one roundup notes LEDs on the mop attachment, while many owners still wish the primary floorhead included lighting.
Storage footprint & upright-stand stability 3.9 ★ ★ ★ ★ ★ ★ ★ ★ ★ 8 reviews 3.9

The freestanding all-in-one tower is praised for storing tools and charging a spare battery, but multiple reviewers call it bulky and note the doors and clearances can be awkward in tight spaces.
Filtration / Dust Containment 3.9 ★ ★ ★ ★ ★ ★ ★ ★ ★ 8 reviews 3.9

The multi-stage system and HEPA bag can contain dust well, yet one lab-style test reports leakage and some owners describe dust plumes or smell during auto-emptying.
Runtime (Measured, Default) 3.8 ★ ★ ★ ★ ★ ★ ★ ★ ★ 4 reviews 3.8

Measured runtimes vary widely by mode and head, but many users see roughly half an hour to an hour per battery in standard use, with the second battery extending total time.
Hair‑Wrap / Tangle Resistance 3.7 ★ ★ ★ ★ ★ ★ ★ ★ ★ 5 reviews 3.7

Tangle resistance is mixed: short hair often causes little wrap, but long hair can wrap heavily and may require regular brush-roll cleaning.
Assembly and Setup 3.7 ★ ★ ★ ★ ★ ★ ★ ★ ★ 2 reviews 3.7

Setup is usually straightforward, though some owners say the instructions are unclear and the tower doors or alignment can be finicky.
Bin & Bag 3.7 ★ ★ ★ ★ ★ ★ ★ ★ ★ 8 reviews 3.7

The onboard bin is small and the Kompressor can compact fluffy debris, while the self-empty tower relies on proprietary bags that add convenience but also cost and occasional mechanical complaints.
Mopping performance 3.6 ★ ★ ★ ★ ★ ★ ★ ★ ★ 5 reviews 3.6

The mop attachment can help with light spot cleaning and shine, but it is not a full mop replacement and some owners report poor results or mechanical issues.
Solution / Liquid system 3.5 ★ ★ ★ ★ ★ ★ ★ ★ ★ 4 reviews 3.5

The spinning mop system is water-focused with adjustable output and typically discourages detergent use; it is best for light, fresh messes rather than deep cleaning.

Cons

AI, Smart & App / Automation 3.4 ★ ★ ★ ★ ★ ★ ★ ★ ★ 4 reviews 3.4

The LG ThinQ/Wi-Fi features provide status and usage history, but many reviewers consider the app optional and a few report pairing or usefulness frustrations.
Hard Floor — Fine Dust Pickup 3.4 ★ ★ ★ ★ ★ ★ ★ ★ ★ 4 reviews 3.4

Fine dust on hard floors is mixed: some tests show excellent pickup on sugar/flour, while other owners report pushing debris around depending on head design and technique.
Build quality & durability 3.3 ★ ★ ★ ★ ★ ★ ★ ★ ★ 2 reviews 3.3

Build impressions vary: some praise a premium feel, but customer reviews include repeated reports of breakage, tower failures, overheating, or motor problems over months of use.
Comparative performance 3.0 ★ ★ ★ ★ ★ ★ ★ ★ 4 reviews 3.0

Compared with Dyson and Samsung rivals, it competes well on carpet and convenience and can be quieter, but falls behind on hard-floor chunky debris and long-term consistency.
Clogging & debris prevention 3.0 ★ ★ ★ ★ ★ ★ ★ ★ 4 reviews 3.0

Clogging feedback is split: the cyclone design can resist fine-dust prefilter clogging, but many users and tests report jams or blockages with larger debris like cereal or kibble.
Runtime (Measured, Boost/Turbo) 2.8 ★ ★ ★ ★ ★ ★ ★ ★ 4 reviews 2.8

Turbo runtime is short and best treated as a burst mode; several reviews cite single-digit minutes of high power before needing a recharge or battery swap.
Ongoing ownership costs (bags, filters, batteries) 2.6 ★ ★ ★ ★ ★ ★ ★ ★ 2 reviews 2.6

Ongoing costs can be higher than bagless rivals due to proprietary dust bags and replacement parts, and some mention paying extra for certain accessories.
Floorhead design 2.5 ★ ★ ★ ★ ★ ★ ★ ★ 4 reviews 2.5

The universal power nozzle works across surfaces but is frequently criticized for pushing chunky debris on hard floors, and several reviewers wish it had a soft roller and/or headlight.
Odor control 2.5 ★ ★ ★ ★ ★ ★ ★ ★ 1 review 2.5

A few users mention noticeable odors, particularly during auto-empty cycles, while others do not report smell issues.
Scratch resistance 2.4 ★ ★ ★ ★ ★ ★ ★ ★ 1 review 2.4

Some owners warn that dragging hard grit or pebbles can scratch wood floors if not picked up cleanly, so careful technique matters on delicate surfaces.
Price & Value 2.3 ★ ★ ★ ★ ★ ★ ★ ★ 2 reviews 2.3

Value is polarizing: some feel the auto-empty convenience justifies the premium, while many owners call it overpriced given hard-floor shortcomings and reliability complaints.
Hard Floor — Large Debris Intake 2.2 ★ ★ ★ ★ ★ ★ ★ 6 reviews 2.2

Large debris on hard floors is the most consistent weakness; multiple reviews note cereal, Cheerios, and kibble being pushed, left behind, or causing jams.
Airflow blowback 1.8 ★ ★ ★ ★ ★ ★ ★ 1 review 1.8

At least one reviewer reports debris scatter or blowback on hard floors (especially with light, bulky bits), contributing to frustration with messy pickups.
Support & Reliability 1.8 ★ ★ ★ ★ ★ ★ ★ 1 review 1.8

Support experiences are mixed; several owners report frustrating warranty processes, slow turnaround, or being required to ship the full unit for service.
Headlight & LED lights 1.7 ★ ★ ★ ★ ★ ★ ★ 2 reviews 1.7

Multiple reviewers note the main floorhead lacks a headlight, and some mention LEDs only on certain attachments, creating expectation mismatches.

FAQ

Does it really self-empty, and how messy is it?

The dock can automatically empty the onboard bin into a bag, which many reviewers find cleaner than dumping a cup. However, several owners report occasional jams, incomplete emptying, or dust during the cycle, so results can vary.

How does it handle hard floors and larger crumbs?

Multiple tests and owners report it can push or jam on cereal, Cheerios, and kibble on smooth floors. Going slower, using a different power level, or switching to the crevice/handheld tool can help, but it is not its strongest use case.

What runtime should I expect from the batteries?

Measured runtimes vary by mode and floorhead, but are often roughly 30 to 60 minutes per battery in standard use. Turbo is typically brief (single-digit to around 10 minutes), and the included second battery plus tower charging extend total runtime.

Is it good for pet hair and upholstery?

On carpets and furniture, the mini motorized tool and pet-focused attachments are frequently praised for pulling up fur. With heavy shedding, expect occasional brush-roll and airway cleaning to prevent clogs.

Is the mop attachment a replacement for regular mopping?

Most reviews treat it as a light spot-cleaning or maintenance tool rather than a deep-clean mop. It is generally water-only with adjustable flow, and some owners report disappointing results or reliability issues.

Does the main floorhead have a headlight or LED lighting?

Several reviews say the primary floorhead does not include a headlight, and some mention LEDs only on certain attachments. If lighting matters, confirm the exact bundle and floorhead version before buying.