LG CordZero All-in-One A931KWM vs LG CordZero Q3
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Quick take: The LG CordZero Q3 costs $120 less.
| Spec | LG CordZero All-in-One A931KWM | LG CordZero Q3 |
|---|---|---|
| Price | ~$419 | ~$299 |
| Type | Cordless Stick | Cordless Stick |
| Suction | 210 AW | 150 AW |
| Battery | 60 min | 60 min |
| Navigation | — | — |
| Filtration | 5-Step Filtration System | 5-Step Filtration System |
| Cordless | Yes | Yes |
| Bagged | No | No |
| Noise | 84 dB | 82 dB |
| Dustbin | 33.8 oz | 33.8 oz |
| Water tank | — | — |
| Self-empty dock | No | No |
| Auto mop washing | No | No |
| Hot water washing | No | No |
| Obstacle avoidance | No | No |
| Carpet detection | No | No |
| Auto mop lifting | No | No |
| Multi-floor mapping | No | No |
| App control | Yes | No |
| Dimensions | 10.1 x 11.7 x 39.7 in | 10.4 x 12.0 x 44.1 in |
| Weight | 5.95 lbs | 6.28 lbs |
| Warranty | 1 year (10-year motor warranty, parts only) | 1 year |
Pros & cons
LG CordZero All-in-One A931KWM
- ✓Auto-empty, auto-charge tower for meaningfully less than LG's flagship A949KTMS
- ✓Kompressor tech compacts debris so the small bin needs emptying less often
- ✓Dual Floor Max nozzle handles carpet and hard floors without swapping heads
- ✓ThinQ app tracks battery health, filter status, and runs diagnostics
- ✓Washable, removable filters keep ongoing filter costs low
- ✓LED headlight and telescoping wand for reach and visibility
- ✓Real street price (~$400) undercuts the $599.99 list price substantially
- ✗Single battery caps runtime at about an hour, less in Power/Turbo mode
- ✗Long-term owners report mixed cleaning performance, including units that cut out after seconds of runtime
- ✗Multiple owners report the vacuum breaking within roughly three months of normal use
- ✗Auto-empty tower reliability is inconsistent — works well for some, stops working reliably for others
- ✗Tower disposal uses proprietary bags, not a simple bagless bin — a recurring cost
- ✗No mop attachment or second battery — those are reserved for the pricier A949KTMS
LG CordZero Q3
- ✓Auto Multi-Surface Detect adjusts suction between carpet and hard floor automatically
- ✓Kompressor compaction technology at a price point that usually skips it
- ✓5-step filtration with removable, washable cyclone and filters
- ✓Detachable handheld mode for stairs, upholstery, and car interiors
- ✓LED-lit crevice tool included in the box
- ✓Meaningfully cheaper than LG's Kompressor and All-in-One CordZero tiers
- ✗No ThinQ app or WiFi diagnostics, unlike LG's step-up models
- ✗Single battery caps runtime at 60 minutes in normal mode, less in Turbo
- ✗150 air-watt suction rating is lower than LG's Kompressor+ThinQ and All-in-One models
- ✗Plain 1-year parts-and-labor warranty, no extended motor coverage
- ✗Too new and low-profile a listing to have an established long-term reliability record