Although both series of Somfy motors are structurally similar, they differ in the way they communicate between the motor and the controlling device. IO series motors offer two-way communication, which means that they can not only receive signals but also send back information.

This ensures that your commands have been executed correctly.

RTS motors, on the other hand, are designed to only receive signals, without the ability to send back confirmations. Therefore the choice between these two technologies depends on your individual needs and preferences. However, for Smart Home systems, the IO series is recommended.