eSIM Balkans: Reliable 5G/4G for Athens, Belgrade & Zagreb

Prepare for your adventure across Southeast Europe with the Cellesim Balkans eSIM. Whether you are island hopping in Greece, exploring history in Serbia, or relaxing on the coast of Croatia, our digital SIM ensures you stay connected instantly. Plans start at just $4.39, offering flexible Data & Day options ranging from 1 GB for short trips to 20 GB for heavy usage.

Escape Extreme International Roaming Charges

Traveling through the Balkans is tricky because it mixes EU countries with non-EU zones (like Serbia, Montenegro, Albania, and North Macedonia). Using your home carrier here can be disastrous, often leading to bill shock with fees exceeding $10/day. A Cellesim eSIM guarantees a fixed, one-time price with zero hidden roaming fees.

Why a Cellesim eSIM is Essential for Your Balkans Trip

• Instant Airport Connection: Get online the moment you land at Athens International Airport (ATH) or Belgrade Nikola Tesla Airport (BEG). Bypass the queues for physical SIM kiosks.
• Control Your Budget: Choose exactly the data you need (1 GB to 20 GB). No surprise bills.
• Keep Your Home Number: Your original SIM stays active for calls and texts (2FA), while Cellesim handles the data. WhatsApp works uninterrupted.
• Reliable Coverage: Enjoy high-speed access on top local networks across 7+ Balkan countries.

Connect Across The Balkans' Key Cities

• Athens: Upload 4K video of the Parthenon instantly without waiting for hotel Wi-Fi.
• Belgrade: Navigate the vibrant nightlife of Skadarlija using reliable 4G/5G maps.
• Zagreb: Stream music and check train schedules while exploring the historic Upper Town.

Stay Connected at Top Balkan Attractions

• Acropolis (Greece): Use mobile data to access your digital tickets and skip the long entry lines at the Parthenon.
• Dubrovnik Old Town (Croatia): Share live video calls from the famous City Walls with crystal-clear connectivity.
• Belgrade Fortress (Serbia): Use Google Maps to navigate the sprawling Kalemegdan Park and find the best sunset viewpoints over the Danube.

Flexible Data Plans: From 1 GB to 20 GB

We offer a variety of plans to suit every type of traveler. Choose the package that fits your schedule:

• Light Travelers (1 GB - 3 GB): Perfect for Google Maps, WhatsApp messages, and checking emails.
• Social Media Fans (5 GB - 10 GB): Ideal for sharing Instagram Stories, Facebook updates, and browsing.
• Heavy Users (20 GB): The best value for streaming music, video calls, and extensive web usage across your entire trip.

3 Easy Steps: Get Connected Before You Land

1. Select your Balkans data plan (choose your GB and Days above).
2. Scan the QR Code sent to your email (best done via Wi-Fi before your flight).
3. Activate on Arrival in the Balkans to start surfing instantly!