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Alternatives to Sichler PR-330

10 window-cleaning robots at a similar price that compete with the PR-330 — what each does better, what it gives up and how the price compares.

Alternatives to the PR-330

Kärcher RCW 4
2
Kärcher · 2026RCW 4
8.1
Same price ≈ US$230
  • Suction power 5,000 Pa vs 2,800 Pa
  • Water tank (robot) 150 ml vs 50 ml
Lazurec A9 Pro
3
Lazurec · 2025A9 Pro
3.7
17% pricier ≈ US$270
  • Water tank (robot) 60 ml vs 50 ml
  • Suction power 2,500 Pa vs 2,800 Pa
  • Noise level 70 dB vs 63 dB
Kärcher RCW 4 Extra
5
Kärcher · 2026RCW 4 Extra
7.5
4% pricier ≈ US$240
  • Suction power 5,000 Pa vs 2,800 Pa
  • Water tank (robot) 150 ml vs 50 ml
  • Noise level 77 dB vs 63 dB
Kärcher RCW 2 Extra+
6
Kärcher · 2026RCW 2 Extra+
6.8
13% cheaper ≈ US$200
  • Suction power 5,000 Pa vs 2,800 Pa
  • Water tank (robot) 70 ml vs 50 ml
Hutt DDC56
7
Hutt · 2025DDC56
4.3
31% cheaper ≈ US$160
  • Suction power 3,000 Pa vs 2,800 Pa
  • Water tank (robot) 60 ml vs 50 ml
Welltec Probot RX10 Pro
8
Welltec · 2025Probot RX10 Pro
7.1
13% cheaper ≈ US$200
  • Suction power 4,000 Pa vs 2,800 Pa
  • Water tank (robot) 120 ml vs 50 ml
  • Window area per session 60 m² vs 50 m²
Ecovacs Winbot W2 Pro
9
Ecovacs · 2025Winbot W2 Pro
6.2
31% pricier ≈ US$300
  • Suction power 5,500 Pa vs 2,800 Pa
  • Water tank (robot) 60 ml vs 50 ml
  • Window area per session 40 m² vs 50 m²
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