Last year we were in Turkey and with the SIM from digitec iot with roaming I had absolutely no problem in the Izmir and Kusadasi area. It worked immediately.

I have never been to Turkey, but since I know a lot about IT and network components, I can tell you that the small router works with any network, as long as the size of the SIM card is right. I can tell you that it works in the Balkans, as I have used the router in Croatia and Bosnia.
Greetings