The function Sedentariness reminds you that you haven't moved for a while. 

To access the menu Sedentariness, open your Abyx Fit application and select "Sedentariness" in the Tab "Device". 

There are 3 parameters you can adjust here:

1) The period of time during which the ABYX FIT will monitor your sedentariness and warn you in case of inactivity. 

2) The days of the week for which the function is activated.

3) The length of the interval after which the tracker will remind you to move.