Testing team: CLIIA floor-care division. Units: 2 corded retail units from two big brands (purchased, not sponsored) + our EM-522 cordless prototype. 30 days, 90 sessions.
You've seen the YouTube head-to-heads. You've seen "one CLEAR winner" thumbnails. Here's the boring truth from a factory floor that makes both kinds: neither wins everywhere — and the deciding factor isn't what reviewers say it is.
| Metric | Corded (1120–1550W class) | Cordless (our EM-522 class) |
|---|---|---|
| Heat-up | 25s–8min depending on boiler | 30s (instant-heat series: 15s) |
| Steam pressure | 3.5–4bar (canister class) | 1.5bar — fine for sealed floors, weaker on grout |
| Runtime | Unlimited (cord dragging) | 10–20min per 500ml refill |
| Floor dry time | Slightly wetter pass | Drier pass — less water, hotter contact |
Daily quick cleans. A corded unit's setup cost (outlet hunt, cord drag, cord unwind) kills the "quick 5-minute kitchen pass". Over 30 days our cordless unit was used 3.2× more often — same reason cordless stick vacuums ate corded ones. Frequency beats power for maintenance cleaning.
Grout lines and heavy grease. A 3.5–4bar canister unit (our EM-202/203 class) strips oven grease in a way no 1.5bar cordless unit matches. If your buyer is a deep-clean once a week household: corded canister. Daily maintenance + small apartment + bathroom tiles: cordless.
Our instant-heat series (EM-318/319) hits working pressure in 15 seconds. Is that a gimmick? No — it changes behavior the same way cordless changed vacuums: waiting is the real competitor. But we'll say what others won't: 1.5bar is 1.5bar. Instant + weaker. Choose by job.
Stock both, position by use-case, price the cordless at the impulse tier (FOB $27–43 for mop+polisher 2-in-1 class) and the canister as the "serious cleaner" tier. Mixed containers OK — same factory, same CE file.
Questions on the test protocol or a spec sheet per model? info@cliia.com — we answer with numbers.
| Their famous tier | Our matching build |
|---|---|
| US brand cordless steam + vac combo, ~$180 (1120W, corded) | EM-522 cordless mop+polisher 2-in-1, 28-35g/min — FOB $27-43 |
| Korean flagship cordless steam, $479 (180°C, 80min) | Instant-heat EM-318/319 class — FOB tier $30s |
| Canister 3.5-4bar deep-clean class | EM-202/203 2L / 3.5-4bar / 30min — FOB on request |
We take this order. Same factory certifications (CE/RoHS/ISO9001:2015/BSCI), OEM from 500 pcs, 30-day samples. The brands above are our benchmark specs, not our ceiling — info@cliia.com for the counter-spec sheet.