Somfy Zigbee vs RTS
Technology Comparison Brief by Blind Concepts
Blind Concepts brief outlines the key differences between Somfy’s Zigbee and RTS (Radio Technology Somfy) wireless communication protocols, to assist in selecting the right solution for motorised curtains and roller blinds.
1. Overview
2. Zigbee Key Benefits
• Two-way communication with real-time feedback
• Mesh network increases range and reliability with each additional device
• Excellent smart home integration (via TaHoma, Alexa, Google, etc.)
• Ideal for larger homes or commercial installs
• Secure and scalable
Hop Distance:
- Up to 100m outdoors (line of sight)
- 10–20m indoors per hop (reduced by walls/interference)
- Up to 30 hops technically supported (practical designs use 5–15)
Best For:
- New builds
- Large homes
- Smart home users
- Future scalability
3. RTS Key Benefits
• Simple setup with handheld remotes and wall switches
• Reliable one-way control over 433 MHz radio
• Retrofits easily into existing homes
• Can be made smart via TaHoma hub
Limitations:
• No feedback from motors
• One-way only: cannot confirm if commands are received or executed
• Limited smart home integration unless TaHoma is added
Best For:
• Smaller, existing homes
• Retrofits
• Users who want simple remote control
4. Using RTS with TaHoma
RTS devices can be controlled via the TaHoma hub to add app, voice, and automation capabilities. However, they remain one-way (no feedback). This is a good compromise for retrofitting smart features without replacing RTS motors.
| RTS Feature | With TaHoma Hub |
| App control | Yes |
| Voice control | Yes (Alexa, Google) |
| Automation/scheduling | Yes |
| Feedback/status updates | No |
Conclusion
Zigbee is the better choice for smart, scalable, and future-ready installations.
RTS remains ideal for quick retrofits and simpler setups, and can be enhanced via TaHoma.
For any project involving more than a few blinds, or where integration and automation are important, Zigbee offers a more robust and flexible solution.
Blind Concepts is a certified Somfy Expert and is a member of the Somfy Expert program.
