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  3. Hutt W9
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Alternatives to Hutt W9

10 window-cleaning robots at a similar price that compete with the W9 — what each does better, what it gives up and how the price compares.

Alternatives to the W9

Kärcher RCW 4 Extra+
2
Kärcher · 2026RCW 4 Extra+
8.0
5% pricier ≈ US$220
  • Suction power 5,000 Pa vs 3,800 Pa
  • Noise level 62 dB vs 70 dB
Kärcher RCW 4
3
Kärcher · 2026RCW 4
8.0
10% pricier ≈ US$230
  • Suction power 5,000 Pa vs 3,800 Pa
  • Noise level 62 dB vs 70 dB
Hobot 2S
4
Hobot · 20232S
5% pricier ≈ US$220
  • Noise level 65 dB vs 70 dB
  • Window area per session 50 m² vs 90 m²
Mova N1
5
Mova · 2026N1
7.8
Same price ≈ US$210
  • Suction power 8,000 Pa vs 3,800 Pa
  • Window area per session 32 m² vs 90 m²
  • Water tank (robot) 120 ml vs 150 ml
Kärcher RCW 4 Extra
6
Kärcher · 2026RCW 4 Extra
7.5
14% pricier ≈ US$240
  • Suction power 5,000 Pa vs 3,800 Pa
  • Noise level 77 dB vs 70 dB
Kärcher RCW 2 Extra+
7
Kärcher · 2026RCW 2 Extra+
7.0
5% cheaper ≈ US$200
  • Suction power 5,000 Pa vs 3,800 Pa
  • Noise level 62 dB vs 70 dB
  • Water tank (robot) 70 ml vs 150 ml
Kärcher RCW 2 Extra
10
Kärcher · 2026RCW 2 Extra
7.0
14% cheaper ≈ US$180
  • Suction power 5,000 Pa vs 3,800 Pa
  • Noise level 62 dB vs 70 dB
  • Water tank (robot) 70 ml vs 150 ml
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