Ecovacs
Ecovacs WINBOT W3 Omni
$699.99
Released 2026-01
Best Robot Window Cleaners · head-to-head
Ecovacs WINBOT W3 Omni vs Alfawise WIN660
A sourced, side-by-side comparison. Alfawise WIN660 is cheaper at $275.84. Every spec and price links to its source.
Alfawise
Alfawise WIN660
$275.84Cheaper
Released 2018
Which is better: the Ecovacs WINBOT W3 Omni or Alfawise WIN660?
On the specs we track, they're closely matched. The Alfawise WIN660 is the cheaper at $275.84.
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Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | Ecovacs WINBOT W3 Omni | Alfawise WIN660 |
|---|---|---|
| US price | $699.99 | $275.84 |
| Brand | Ecovacs | Alfawise |
| Released | 2026-01 | 2018 |
| Suction power (Pa) | 10000 | 2800 |
| Cleaning speed mode | 8 modes (Fast/Deep/Thorough/Edge/Spot/Zone/Heavy-duty/Remote); 16 cm/s top speed, ~1m35s per 1x1m panel in Fast mode | ~2.5 min/m^2 |
| Battery backup min | 130 | 25 |
| Spray system | 3-nozzle wide-angle spray, 80ml tank, >=70% spray coverage; Vortex Wash station auto-washes pads with 16 jets (~1 min cycle) | — |
| Path planning | WIN-SLAM 5.0 with 1mm dynamic obstacle avoidance | 4 edge-sensing sensors for frame/frameless windows; Z and N cleaning patterns |
| Noise level (dB) | 71.5 | 65 |
| Safety tether | 3-layer composite power/safety cable rated to 100kg, plus 1m backup rope | 150kgf-rated safety rope |
| Edge detection | Optocoupler edge sensor, 0.02s response; TruEdge retracting scrubber cleans to ~1.1cm of the frame | 4 edge-sensing sensors, works on frameless windows |
| Weight (lb) | 4.9 | — |
Sources — Ecovacs WINBOT W3 Omni: ecovacs.com (verified 2026-09-21). Alfawise WIN660: dresslily.com (verified 2026-09-21).
What's the difference between the Ecovacs WINBOT W3 Omni and Alfawise WIN660?
Where the two actually differ on the specs we track (7 of 9). Matching specs are omitted.
- Suction power (Pa): Ecovacs WINBOT W3 Omni 10000 vs Alfawise WIN660 2800
- Cleaning speed mode: Ecovacs WINBOT W3 Omni 8 modes (Fast/Deep/Thorough/Edge/Spot/Zone/Heavy-duty/Remote); 16 cm/s top speed, ~1m35s per 1x1m panel in Fast mode vs Alfawise WIN660 ~2.5 min/m^2
- Battery backup min: Ecovacs WINBOT W3 Omni 130 vs Alfawise WIN660 25
- Path planning: Ecovacs WINBOT W3 Omni WIN-SLAM 5.0 with 1mm dynamic obstacle avoidance vs Alfawise WIN660 4 edge-sensing sensors for frame/frameless windows; Z and N cleaning patterns
- Noise level (dB): Ecovacs WINBOT W3 Omni 71.5 vs Alfawise WIN660 65
- Safety tether: Ecovacs WINBOT W3 Omni 3-layer composite power/safety cable rated to 100kg, plus 1m backup rope vs Alfawise WIN660 150kgf-rated safety rope
- Edge detection: Ecovacs WINBOT W3 Omni Optocoupler edge sensor, 0.02s response; TruEdge retracting scrubber cleans to ~1.1cm of the frame vs Alfawise WIN660 4 edge-sensing sensors, works on frameless windows