Liectroux G9 Window Cleaning Robot Review: Smart & Powerful Suction for Sparkling Windows

July 14, 2026
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Tired of precarious ladder climbs and streaky windows? We understand the struggle for spotless glass. The Liectroux G9 window cleaning robot promises an automated solution. This device aims to tackle dirt and grime with advanced technology. We will explore its features to see if it lives up to the hype. This review contains affiliate links, which means we may earn a commission if you make a purchase.

Full Specifications at a Glance

Spec Value
Brand LIECTROUX
Model G9
Sensors Optical coupling, current & air pressure sensors, 4 edge sensors
Rated Power 72W
Water Spray 8 nozzle matrix, manual / automatic
Product Name Dual Engine Window Cleaning Robot
Product Size 265 × 265 × 75 mm
Input Voltage AC 100–240V, 50–60Hz
Smart Control Smartphone app control (Wi-Fi) + 2.4 GHz wireless remote control
Suction Power 10,000Pa
Voice Prompts Built in AI voice guidance
Cleaning Modes Auto, N, Z, Deep, Edge, Spot, Track; auto/manual spray; robotic arm vibration on/off
Operating Noise ≤ 65 dB
Anti Fall System Quadruple protection, UPS power off protection up to 30 min
Battery Capacity 500mAh, 14.8V
Applicable Surfaces Framed & frameless glass, mirrors, tile walls, marble walls, other smooth surfaces
Water Tank Capacity 120ml

The 10000Pa suction power is a standout specification. It significantly exceeds the typical suction found in many household cleaning robots. This ensures a strong grip on vertical surfaces.

Product image
The Liectroux G9 window cleaning robot on a clean white background.

Design & Build Quality

Holding the Liectroux G9, it feels robust. The unit measures 265 × 265 × 75 mm. Its weight is substantial enough for stability. The plastic construction seems durable. It features a clean, modern aesthetic. The circular design allows for maneuverability. It has prominent sensors on the front edge. The water tank is easily accessible. The cleaning arms are a key visual element.

Product image
Close-up of the Liectroux G9’s dual cleaning arms.

Detailed Feature Breakdown

Dual-Engine Cleaning Arms

The Liectroux G9 boasts dual-engine cleaning arms. This design mimics human hand wiping. Dynamic pressure control adjusts scrubbing force. It targets stubborn dirt and grime effectively. This feature aims for a deeper clean than simple buffing. The arms vibrate for enhanced stain removal.

Powerful 10000Pa Suction

Hurricane-force suction is a major draw. The 10000Pa rating provides strong adhesion. This prevents the robot from falling. It ensures stable operation on various window types. Variable-frequency brushless motors power this suction. This technology is vital for safety and performance.

8-Nozzle High-Pressure Spray

An industry-first 8-nozzle spray matrix is present. It works with pulse-pump technology. This ensures uniform water coverage. It softens tough stains before scrubbing. The 120ml water tank supports this function. Auto or manual spray options offer flexibility.

Smart Navigation and Edge Cleaning

The robot uses smart navigation. It plans optimal cleaning paths. It automatically returns to its start point. The exclusive Edge Cleaning Mode is notable. Four corner brushes ensure thorough cleaning. This mode tackles frames and narrow gaps effectively.

Product image
Liectroux G9 robot cleaning a large window pane.

App and Remote Control

Control options are plentiful. You can use the Tuya Smart App via Wi-Fi. A 2.4 GHz remote control is also included. AI voice guidance provides status updates. This smart control offers convenience. Users can select various cleaning modes.

Competitor Comparison

While specific competitor data is unavailable, the Liectroux G9 enters a market with several players. Products like the Ecovacs Winbot and Hobot series are well-known. These often focus on strong suction and safety features. The G9’s dual-engine arms and extensive spray system differentiate it. These features aim for a more thorough, human-like cleaning action. Many competitors offer app control. However, the G9’s specific spray matrix and arm mechanics appear unique.

Real User Reviews

Consumers often seek reliable adhesion and effective stain removal in window cleaning robots. A common concern is the robot’s ability to handle corners and edges without missing spots. Durability and long-term performance are also frequently discussed. Buyers often value ease of setup and maintenance. Some users report issues with water spray systems in competing models. Safety features like anti-fall systems are paramount for user confidence.

Pros & Cons

The Good

  • 10000Pa Suction: Provides exceptionally secure window adhesion.
  • Dual Cleaning Arms: Mimic human wiping for potentially better stain removal.
  • 8-Nozzle Spray: Offers uniform water coverage to soften grime.
  • Edge Cleaning Mode: Addresses corners and frames effectively.
  • Dual Control: App and remote control offer user convenience.
  • AI Voice Guidance: Provides real-time operating status.

The Bad

  • Noise Level: While rated at ≤ 65 dB, some users may find robot noise disruptive.
  • Water Tank Size: The 120ml tank might require refills for very large or multiple windows.
  • Durability Unknown: Long-term performance and component lifespan require more data.

Who Should Buy This?

  • Homeowners with Large Windows: Those with many large panes will benefit from automation. It saves significant time and effort.
  • People with Mobility Issues: Individuals who cannot safely use ladders can maintain clean windows. The robot handles the work remotely.
  • Tech Enthusiasts: Users who appreciate smart home gadgets and app-controlled devices will find value. The advanced features appeal to early adopters.
  • Those Seeking Deep Cleaning: The dual arms and spray system target tougher grime. It aims for a cleaner finish than basic robotic washers.

Who should look elsewhere? Budget-conscious buyers or those with only a few small, easily accessible windows might find this robot overkill.

FAQ

  • How does the Liectroux G9 prevent falling? It employs quadruple protection and an UPS power-off system. This provides up to 30 minutes of backup power in case of an outage. It also has edge sensors to detect drops.
  • Can the Liectroux G9 clean frameless windows? Yes, the product specifications state it is applicable to framed and frameless glass. Its sensors and suction power help it adhere and navigate.
  • How often do I need to refill the water tank? The 120ml water tank capacity is suitable for moderate cleaning tasks. For very large or multiple windows, you may need to refill it. Actual usage depends on spray settings and window size.
  • What maintenance does the Liectroux G9 require? Regular cleaning of the microfiber cloths is necessary. Ensure sensors and the water nozzle area are free of debris. Refer to the user manual for detailed instructions.
  • Is the app compatible with all smartphones? The Tuya Smart App generally supports most modern iOS and Android devices. Check the app store for specific version compatibility.
  • Can this robot clean mirrors or tiled walls? Yes, the applicable surfaces include mirrors and tile walls, along with other smooth surfaces.

Final Verdict

8.2/10 Recommended

The Liectroux G9 window cleaning robot offers impressive suction power and innovative cleaning features. Its dual-engine arms and high-pressure spray system aim for superior results. App control adds significant convenience for smart home users. This robot is an excellent choice for those with large or hard-to-reach windows.

Where to buy?

We are currently tracking the price of Liectroux G9. You can click through our product database to find the best place to buy.
Affiliate Disclosure: This article contains affiliate links. If you make a purchase through these links, we may earn a commission at no extra cost to you.
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