Cordless Vacuums · Head-to-head
LG CordZero A925 vs A937 Auto-Empty: Is the Dock Worth $200?
Both are LG's CordZero flagship stick vacuums, and on paper they're nearly the same machine: same sealed HEPA filtration, the same anti-tangle brush, the same pet tool, the same 120-minute rated runtime, and the same tested suction and handling scores. Shoppers reach this pair after they've already settled on LG's top tier, stuck on one question: pay $400 for the A925, or $600 for the A937 and its auto-empty dock?
| LG CordZero A925 | LG CordZero A937 Auto-Empty | |
|---|---|---|
| Overall score | 7.7/10 | 7.7/10 |
| Suction | 7/10 | 7/10 |
| Runtime | 9/10 | 9/10 |
| Handling | 7/10 | 7/10 |
| Suction (advertised) | not published | not published |
| Max runtime | 120 min | 120 min |
| Weight | 5.9 lb | 6 lb |
| Filtration | Sealed HEPA | Sealed HEPA |
| Dock | Charging dock | Auto-empty base station |
| Typical price | $400 | $600 |
Suction and runtime: identical, and both need a caveat
LG publishes no suction figure, no Air Watts, no kPa, for either model, so you can't line them up against a Dyson's AW rating or a rival's kPa number (and those two units measure different things anyway, so they never compare cleanly). In our testing both land at the same 7/10. Runtime is the same story: the 120-minute rating is eco mode with a non-powered tool. Switch to Max with the motorized brush on carpet and real runtime drops to a fraction, but it drops equally for both, since they share the battery.
The dock is the only thing you're actually choosing between
Strip away the identical specs and one difference remains: the A925 charges and stores the vacuum; the A937's dock also empties the wand bin for you when you seat it. That's genuinely useful if you dread the chore or react to the dust cloud a manual empty kicks up. Be realistic about the trade-offs, though: auto-empty docks are loud for a few seconds each cycle, take up more floor space, and still need periodic emptying themselves. The vacuum in your hand cleans exactly the same either way.
What the extra $200 actually buys
The overall scores tie at 7.7/10 because the engine sees two versions of one vacuum: same filtration, same tools, same 6-pound handling (the 0.1-pound spread is noise). So the $200 premium isn't buying more cleaning power, longer runtime, or a lighter wand. It buys one convenience: never touching the bin. Whether that's worth a third again on the price is entirely about how much the emptying chore bothers you, a real question for some households and a non-issue for others.
Verdict
Buy the A925 and pocket the $200 if emptying a bin a few times a week doesn't bother you; you're getting the exact same vacuum. Step up to the A937 Auto-Empty if you have allergies or asthma (hands-off emptying keeps the dust contained), deal with heavy pet-hair volume, or simply know you'll put off the chore. Neither is "better," they're the same machine priced for two different tolerances for a small weekly task.
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