Will my Serbian SIM card work in Kosovo?

It is complicated and unreliable. Due to political tensions, Serbian SIM cards often lose signal once you move south of Mitrovica or into central Kosovo. Conversely, Kosovo networks do not work in Serbia. If you are traveling between Belgrade and Pristina, relying on a Serbian SIM is risky. It is safer and more reliable to purchase a dedicated Kosovo eSIM to ensure you have navigation and communication throughout the entire territory.