Alternatives to Sichler PR-040

10 window-cleaning robots at a similar price that compete with the PR-040 — what each does better, what it gives up and how the price compares.

Sichler · 2025

PR-040

approx. price≈ US$230

Cheaper

Ecovacs Winbot Mini 22% cheaper Newest

Ecovacs Winbot Mini 2 2026

Alternatives to the PR-040

Kärcher · 2026RCW 4

8.0

Same price ≈ US$230

Noise level 62 dB vs 65 dB

Compare with PR-040

Sichler · 2025PR-330

4.2

Same price ≈ US$230

Noise level 63 dB vs 65 dB

Compare with PR-040

Ecovacs · 2026Winbot Mini 2

6.3

9% pricier ≈ US$250

Compare with PR-040

Kärcher · 2026RCW 4 Extra+

8.0

4% cheaper ≈ US$220

Noise level 62 dB vs 65 dB

Compare with PR-040

Lazurec · 2025A9 Pro

3.7

17% pricier ≈ US$270

Noise level 70 dB vs 65 dB

Compare with PR-040

Ecovacs · 2025Winbot Mini

6.2

22% cheaper ≈ US$180

Noise level 63 dB vs 65 dB

Compare with PR-040

Ecovacs · 2025Winbot W2 Pro

6.1

31% pricier ≈ US$300

Noise level 63 dB vs 65 dB

Compare with PR-040

Mova · 2026N1

7.8

9% cheaper ≈ US$210

Noise level 72 dB vs 65 dB

Compare with PR-040

Kärcher · 2026RCW 4 Extra

7.5

4% pricier ≈ US$240

Noise level 77 dB vs 65 dB

Compare with PR-040

Kärcher · 2026RCW 2 Extra+

7.0

13% cheaper ≈ US$200

Noise level 62 dB vs 65 dB

Compare with PR-040