Best eSIM for Serbia in 2026: Yettel, mts, or A1?
Yettel just took Opensignal's Best Network crown, mts still leads on rural reach and market share, and A1 quietly won every 5G speed category.
Serbia's biggest carrier by subscriber count isn't the one that just got crowned best network in the country - a gap between market share and performance that's worth understanding before you pick.
Key Takeaways
- Yettel was crowned "Best Network" in Serbia by Opensignal's Q1 2026 report, winning Consistent Quality, Time on Network, and Coverage Experience outright, plus sharing top spot for Download Speed and Reliability.
- Telekom Srbija (mts) holds the largest market share at roughly 42.7% of subscribers and offers the widest rural coverage, most entrenched outside major cities.
- A1 Serbia won the Best 5G Network award, taking 5G Download Speed and 5G Reliability Experience outright, despite holding the smallest market share of the three (about 24.3%).
Which network should you pick for a Belgrade-based trip?
Yettel is the strongest overall pick, having earned Opensignal's outright "Best Network" crown for Q1 2026 and winning categories spanning coverage, consistency, and speed. It has the widest 4G LTE footprint in the country, with particularly strong coverage across Belgrade, Novi Sad, and the main inter-city corridors.
Does market share tell a different story than performance?
Yes - Telekom Srbija (mts) remains the largest operator by subscriber count, and independent analysis still credits it with the strongest rural coverage and the most entrenched presence outside major cities. If your trip extends well beyond Belgrade and Novi Sad into smaller towns, mts's rural reach may matter more than Yettel's overall performance crown.
Is A1 worth considering for 5G specifically?
If 5G speed is your priority, yes - A1 won the Best 5G Network award for 2026, taking the 5G Download Speed and 5G Reliability Experience categories outright, an impressive result given it holds the smallest market share of the three. All three operators launched commercial 5G simultaneously in December 2025, with coverage concentrated in major cities and tourist areas for now.
Frequently asked questions
Which network is best overall in Serbia?
Yettel, crowned "Best Network" in Opensignal's Q1 2026 report after winning Coverage Experience, Consistent Quality, and Time on Network outright.
Which Serbian network has the widest rural coverage?
Telekom Srbija (mts), which independent analysis credits with the strongest local coverage and most entrenched presence outside major cities.
Which network is best for 5G in Serbia?
A1 Serbia, which won the Best 5G Network award for 2026, taking 5G Download Speed and 5G Reliability Experience outright.
When did 5G launch in Serbia?
All three major operators activated commercial 5G simultaneously in December 2025, with initial coverage focused on major cities and key tourist areas.
Sources
- Telecompaper, Yettel Crowned Best Network in Serbia, A1 Leads in 5G, retrieved 2026-07-13, https://www.telecompaper.com/news/yettel-crowned-best-network-in-serbia-a1-leads-in-5g--1572274
- Opensignal, Serbia Mobile Network Experience Report, May 2026, retrieved 2026-07-13, https://insights.opensignal.com/reports/2026/05/serbia/mobile-network-experience
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