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  3. Technaxx Lifenaxx LX-047
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Alternatives to Technaxx Lifenaxx LX-047

10 window-cleaning robots at a similar price that compete with the Lifenaxx LX-047 — what each does better, what it gives up and how the price compares.

Alternatives to the Lifenaxx LX-047

Kärcher RCW 2
1
Kärcher · 2026RCW 2
7.0
6% pricier ≈ US$170
  • Suction power 5,000 Pa vs 4,500 Pa
  • Noise level 62 dB vs 65 dB
  • Water tank (robot) 70 ml vs 100 ml
Kärcher RCW 2 Extra
4
Kärcher · 2026RCW 2 Extra
7.0
13% pricier ≈ US$180
  • Suction power 5,000 Pa vs 4,500 Pa
  • Noise level 62 dB vs 65 dB
  • Water tank (robot) 70 ml vs 100 ml
Kärcher RCW 4
10
Kärcher · 2026RCW 4
8.0
44% pricier ≈ US$230
  • Suction power 5,000 Pa vs 4,500 Pa
  • Water tank (robot) 150 ml vs 100 ml
  • Noise level 62 dB vs 65 dB
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