BWT COSMY Star Robotic Pool Cleaner

The BWT Cosmy Star Robotic Pool Cleaner delivers fast, energy-efficient cleaning for pools up to 12 metres. Powered by two-stage planetary gear technology and dual drive motors, it provides unmatched reliability, precise navigation, and thorough coverage of the floor, walls, and waterline. Control it via Bluetooth using the free BWT Best Water Home app.

Cosmy Star Key Features

• Planetary Gear Technology — two-stage dual-motor drive for superior efficiency and precision
• Full Pool Coverage — cleans floor, walls, and waterline
• Bluetooth App Control — via the free BWT Best Water Home app (iOS & Android)
• Spot Cleaning — manually direct the cleaner to specific areas via the app
• Energy Efficient — short cleaning cycles with powerful suction and logical travel mode
• 18m Floating Cable — tangle-resistant for pools up to 12m
• Lightweight Design — easy to lift and handle
• Cleaning Cycles: 1.5 / 2 / 2.5 hours
• Suits pools up to 12m

Warranty

• 2-year full warranty
• 3-year warranty on electrical components (power supply, motor, and cable)

Downloads

• BWT Cosmy Star — Brochure (PDF)
• BWT Best Water Home App — Google Play

Frequently Asked Questions

What pool size does the BWT Cosmy Star suit?

The BWT Cosmy Star is designed for pools up to 12 metres in length. It comes with an 18-metre tangle-resistant floating cable to provide full coverage across the pool floor, walls, and waterline.

Does the BWT Cosmy Star clean pool walls and the waterline?

Yes — the Cosmy Star provides full pool coverage, cleaning the floor, walls, and waterline in a single cycle. This makes it one of the most thorough robotic cleaners in its class.

How does the Bluetooth app control work?

The Cosmy Star connects to the free BWT Best Water Home app (available on iOS and Android) via Bluetooth. From the app you can start and stop cleaning cycles, select cycle duration (1.5, 2, or 2.5 hours), and use the spot cleaning feature to manually direct the cleaner to a specific area of the pool.

What is planetary gear technology and why does it matter?

Planetary gear technology uses a two-stage gear system driven by dual motors to deliver more torque and efficiency than standard single-motor drives. In a robotic pool cleaner, this means better traction on walls, more reliable navigation across different pool surfaces, and a longer motor lifespan compared to conventional drive systems.

What warranty does the BWT Cosmy Star come with?

The Cosmy Star includes a 2-year full warranty plus an extended 3-year warranty on electrical components including the power supply, motor, and cable — giving you up to 3 years of coverage on the most critical parts.

Is the BWT Cosmy Star available in Australia?

Yes — the BWT Cosmy Star is available in Australia through Pool Shop Australia with fast local shipping. We stock it in our Australian warehouse and can assist with any warranty or support queries.