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HOBOT

HOBOT-388

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Our Verdict: The only window robot designed for narrow panes — if your windows are slim, this is your only real option.

The HOBOT-388 stands out with its remarkably slim and lightweight design. At just 915 grams, it’s the lightest window cleaning robot on the market, and its elongated 295 × 148 × 95mm profile lets it navigate narrow window panes that square robots can’t fit.

Slim Profile, Real Power

Don’t let the compact size fool you, the 90W motor provides strong vacuum adhesion, and the ultrasonic spray system delivers a fine 15μm mist for effective dirt removal. Rotating cloth pads clean at approximately 4 min/m², which is reasonable for its class.

Ideal for Narrow Windows

The elongated shape is specifically designed for narrow window panes, making it unique among window cleaning robots that typically require wider minimum dimensions.

Budget window cleaning Standard home windows First-time buyers

Specifications

Weight 0.915 kg (lightest available)
Dimensions 295 × 148 × 95 mm (elongated)
Cleaning Method Rotating cloth pads
Spray System Ultrasonic (15μm mist)
Cleaning Speed ~4 min/m²
Power Corded 90W with UPS (20 min)
Voltage 100–240V universal

Pros & Cons

A quick summary of where this model performs well and where it falls short.

Pros

  • Affordable entry to HOBOT range
  • Ultrasonic spray included
  • App and remote control
  • Reliable suction

Cons

  • Basic Z-pattern navigation
  • Slower cleaning speed
  • Smaller water tank
  • No edge detection

Interested in this product?

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