Navigator I don't know what exacly have TIM ( maybe it is obligate to use it to have a connection for that oberator). But for any other operator you can use whatever you want. If you in such case find Nordic , buy it , since it is more complex ( bands selection from web , Nightmode , upload aggregation on/off).
There is difference also in option Mesh , since in TIM exists , in Nordic in Elisa not. ( but no idea ,if this Mesh is just second SSID's on WIFI for comunication with ZTE mesh satelites).
