The new Liectroux S9 ranks among the most advanced window-cleaning robots the brand has introduced so far. It combines suction power up to 9000 Pa, intelligent navigation, and a new washing system with a pair of cylindrical brushes plus six-direction water spraying.
The biggest new feature is four rotating side brushes for cleaning window edges and corners, which are usually the most problematic spots for conventional robots. The manufacturer also claims up to 99.99% coverage of the cleaned surface, including the glass edges.
July Banggood sale cuts the price
You can get the Liectroux S9 window-cleaning robot from our Chinese partner Banggood. It’s stocked directly in an EU warehouse, meaning very fast delivery in just 3–12 business days after dispatch and with no extra fees! Don’t forget to use the coupon from the price box, too.
Liectroux S9
CZ warehouse
TIPExpress delivery from the Czech warehouse with no customs duties and VAT.
This product will be delivered to you express from a local Czech warehouse. Delivery from the Czech Republic usually takes 7–10 days and is handled by courier. When it arrives, you don’t pay any extra fees—no customs, no VAT.
Dual cylindrical brushes and edge cleaning to the millimeter
What sets the Liectroux S9 apart from most competitors is its patented dual cylindrical brushes. They combine washing, brushing, and wiping in one step. The rollers are paired with a delicate microfiber cloth that efficiently captures dust, grease, and dried stains without scratching the glass.
The manufacturer also added four rotating side brushlets placed in the corners of the device. They rotate 360 degrees and can clean even the tricky areas around window frames. According to available data, the robot reaches to about 1 mm from the edge of the glass, which is a major improvement over older models.
Six-nozzle water-spraying system
When cleaning windows, it’s not only important to wipe away dirt but also to dispense the water correctly. That’s why the Liectroux S9 uses a new high-pressure pump and six nozzles positioned on both sides of the device. The robot can spray water in four directions and automatically adjusts the dosage based on movement across the glass.
Compared with older spray systems, it delivers higher pressure, better area coverage, and a lower risk of nozzle clogs. The 110 ml water tank is enough even for cleaning larger glazed surfaces without frequent refilling.
Extreme suction power of 9000 Pa and smart safety
The up to 9000 Pa suction power is among the highest values in the window-cleaning robot category. The robot automatically adjusts downward force based on the surface type and continuously monitors air pressure. If the system detects an air leak or reduced adhesion, the device immediately changes its movement direction and moves to a safe position.
Safety is complemented by a UPS backup battery, which can keep the robot on the glass for about 30 minutes even after a power outage. There’s also a safety rope with a load capacity of 100 kg or more and a multi-layer fall-protection system. Thanks to this, it’s suitable for large French windows or cleaning on higher floors.
Advanced navigation and a smartphone app
A modern cleaning robot also needs to be smart. The Liectroux S9 uses gyroscopic navigation and a combination of optical sensors with mechanical edge detection. Eight micro-switches in the corners of the device ensure accurate recognition of frames and glass edges.
The robot supports Tuya Smart and Smart Life apps, where you can track the cleaning progress or change operating modes. There is also a 2.4 GHz remote control with a range of up to 20 meters. Navigation uses Z- and N-shaped movements, which helps cover the entire cleaning area more efficiently without missing spots.
Quieter operation and compact dimensions
Despite its high performance, the manufacturer has kept the noise level at a reasonable up to 65 dB. The brushless motor ensures a longer service life, lower vibrations, and at the same time lower energy consumption. The robot itself is only 7.5 cm thick, so it fits easily even on less accessible windows.
Cleaning speed of approximately 3 minutes per square meter means that large glass areas can be cleaned significantly faster than most standard models. If you’re looking for the most technologically advanced window-cleaning robot from Liectroux, the Liectroux S9 model is currently among the most interesting new releases on the market.
| - | Liectroux S9 |
|---|---|
| Type | Window cleaning robot |
| Suction power | 9000 Pa |
| Cleaning speed | approx. 3 min/㎡ |
| Battery capacity | 600 mAh |
| Backup runtime during a power outage | 30 minutes |
| Water tank capacity | 110 ml |
| Control | Tuya / Smart Life app + remote control |
| Remote control | 2.4 GHz / 20 m range |
| Noise level | ≤ 65 dB |
| Motor | Brushless |
| Cleaning modes | 4 |
| Water misting | Automatic and manual |
| Dimensions | 26.5 x 26.5 x 7.5 cm |
| Weight | 2.1 kg |
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