Best eSIM for Serbia

Serbia gets two very different kinds of visitor and both need data from the first hour. There is the long-weekend crowd flying into Nikola Tesla (BEG) for Belgrade, which runs on ride-hailing apps, restaurant bookings and finding the entrance to a bar hidden in a courtyard in Savamala. Then there are the road trippers heading for Novi Sad, Zlatibor or the Đerdap gorge, where the phone is a map for hours at a time. Serbia is outside the European Union, so an EU tariff does not roam freely here and travellers from further afield face standard international rates. Loading a travel eSIM before departure settles that, and you leave the airport connected rather than looking for a kiosk.

Match the plan to the itinerary. A three-day city break in Belgrade is light on data but constant, mostly maps, messaging and transport apps. A driving loop through Šumadija and the west uses far more, because navigation stays open between towns and the signposting outside the main corridors assumes you know where you are going. Confirm hotspot on the plan card if you work from cafés, which is common in Belgrade. A Serbian number is not needed for anything a visitor does, and your home SIM stays in the phone to catch one-time passwords from your bank. Travellers doing a Balkan circuit through Bosnia, North Macedonia or Montenegro should compare this with a Europe regional plan that covers several countries at once. Additional plans queue behind the active one, and the device page confirms whether your handset takes an eSIM.

The networks operating in Serbia are Telekom Srbija, which sells under the mts brand, A1 Srbija and Yettel Serbia. Your eSIM connects to a partner among them and moves between masts on its own. 4G is the workhorse and it is dependable across Belgrade, Novi Sad, Niš and the motorway corridor that links them, as well as the main road south towards the North Macedonian border. It thins in the mountains around Tara and Kopaonik, in the Đerdap gorge where the Danube cuts between cliffs, and on the smaller roads through the west of the country.

• Belgrade — strong across Stari Grad, Novi Beograd and Zemun.
• Novi Sad — reliable in the centre and at Petrovaradin.
• Niš — good in town and along the motorway.
• Zlatibor and Kopaonik — fine in the resorts, patchy on the surrounding roads.
• Đerdap — expect gaps where the gorge walls block the signal.

For a weekend in Belgrade or a week on the road, the eSIM is the least trouble and the price is known before you leave. A local SIM makes sense only if you are here long enough to want a Serbian number for calls to landlords, clinics or offices.

1. Buy a plan from the grid above; the QR code and install link arrive by email in minutes.
2. iPhone on iOS 17.4 or later: tap the link. Otherwise Settings, Mobile Data, Add eSIM; on Android, Settings, Connections or Network, SIM manager, Add eSIM and scan.
3. Install at home on Wi-Fi and name the line Serbia.
4. Enable Data Roaming for the eSIM line and switch mobile data off on your home SIM.
5. After landing at Nikola Tesla, choose the eSIM as your data line before you book a ride into town.
6. Validity starts from that first connection, not from purchase.

Install a few days early, on home Wi-Fi, and leave it dormant. Nothing counts down until the eSIM first registers on a Serbian network. Keep it off during a change of planes in Vienna, Istanbul or Frankfurt. If you are arriving overland by bus from Sarajevo or Budapest, switch it on shortly after the border so your home SIM does not pick up the Serbian network first.