GARDENA 15201-20 SILENO Minimo - Automat vs WORX WA0860 Anti Collision System (ACS)
Quick Verdict
The WORX WA0860 ACS accessory is a component, not a standalone mower. It adds anti-collision sensors to WORX Landroid robots. The GARDENA 15201-20 SILENO Minimo is a complete robotic mower. If you need a full mowing solution, the GARDENA wins. If you already own a WORX Landroid and want to improve obstacle avoidance, the WORX accessory is the better choice.
Side-by-Side
| Feature | GARDENA 15201-20 SILENO Minimo | WORX WA0860 ACS Accessory |
|---|---|---|
| Price | $607.04 | $299.22 |
| Power | 18V lithium-ion (built-in battery) | No power – accessory for WORX Landroid |
| Cut Width | 8 inches (20 cm) | Not applicable |
| Best Yard Size | Up to 0.25 acre (1,000 m²) | Depends on your WORX mower model |
| Type | Complete robotic mower | Anti-collision sensor accessory |
Where GARDENA Wins
- Complete system: The SILENO Minimo is a ready-to-mow robot with a built-in battery, perimeter wire, and charging station. No additional purchases needed.
- Low noise: “Sileno” is accurate – it operates at just 57 dB, quiet enough for early morning or late evening mowing without disturbing neighbors.
- Compact design: Its 8-inch cutting width and small footprint make it ideal for narrow passages, small lawns, and intricate gardens with many obstacles.
- Smart features: Bluetooth connectivity via the GARDENA app allows scheduling, zone control, and theft protection. It also handles slopes up to 25%.
- Cut quality: Adjustable cutting height from 0.8 to 2.2 inches, with a mulching system that returns fine clippings to the lawn.
Where WORX Wins
- Cost: At $299.22, the ACS accessory is less than half the price of the GARDENA mower. However, it is not a mower – you must already own a WORX Landroid robot.
- Obstacle avoidance: The ACS system uses ultrasonic sensors to detect objects like toys, trees, or garden furniture before contact. This reduces collisions and potential damage to both the mower and yard items.
- Retrofit compatibility: Designed to fit most WORX Landroid models (including older ones), it upgrades an existing mower without buying a new robot.
- User reviews: 4.2/5 stars from 1,368 reviews suggests high satisfaction among WORX owners using this accessory.
- No installation complexity: Plugs directly into the mower’s accessory port – no wiring or programming required.
Which Should You Buy
Buy the GARDENA 15201-20 SILENO Minimo if: You are buying your first robotic mower and have a small to medium lawn (up to 0.25 acre). You value quiet operation, app control, and a complete out-of-the-box solution. The $607 price includes everything needed for automated mowing.
Buy the WORX WA0860 ACS accessory if: You already own a WORX Landroid robotic mower and want to improve its obstacle detection. This is a cost-effective upgrade ($299) that reduces bump-and-turn collisions and protects your yard items. It is not a mower – it is a smart add-on for an existing robot.
Do not buy the WORX accessory if you do not own a WORX mower. It will not work with any other brand. In that case, the GARDENA is the only viable option here for a complete mowing system.