Question about Netatmo Starter kit Smart Radiator Valves

In my case, the floor heating is controlled by a Danfoss control valve, so it is exactly the same as a radiator. So the Danfoss could be replaced by a Netatmo valve.

However, the way it works is not the same: the Netatmo only knows 2 positions, fully closed and fully open, while the Danfoss works continuously.
With the Netatmo, there are therefore much greater temperature fluctuations in the heating element. This seems to me to be very uncomfortable in the floor area. I would also be afraid that the floor mass could age quickly due to the constant temperature changes.
I would therefore not use it for floor heating.

No. This is a radiator thermostat.