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  3. Probot RX3 Pro vs Probot RX4 Pro

Welltec Probot RX3 Pro vs Welltec Probot RX4 Pro

What Probot RX3 Pro does better (0) and where Probot RX4 Pro wins (1) — every spec side by side.

Welltec Probot RX3 Pro
Welltec · 2025Probot RX3 Pro
4.7Score
0 advantages≈ US$320
vs
Welltec Probot RX4 Pro
Welltec · 2025Probot RX4 Pro
5.0Score
1 advantage≈ US$440
Higher score
5.0Cleaning power5.0
6.4Mopping6.4
2.2Battery2.5

Why is Probot RX3 Pro better than Probot RX4 Pro?

Probot RX3 Pro has no measurable advantages in this pair.

Why is Probot RX4 Pro better than Probot RX3 Pro?

  1. Window area per session24 m² vs 28 m²+17%
Specifications

Side by side

Suction & cleaning
Suction power4,000 Pa4,000 Pa
Navigation & obstacles
Navigation sensorsGyroscopeGyroscope
Size & weight
Width / diameter245 mm245 mm
Length245 mm245 mm
Weight1.2 kg1.2 kg
ColoursWhiteWhite
App & smart home
App controlYesYes
Remote controlYesYes
Window cleaning
Water sprayYesYes
Backup battery (power cut)YesYes
Safety ropeYesYes
Window area per session24 m²28 m²
To compare: 0up to 4 models
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