FMART T9Pro
Budget window robot from 25+ year manufacturer with 3,800Pa suction and ultrasonic spray.
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HOBOT-388
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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