Internet in Thessaloniki: eSIM & Connectivity Tips
eSIM from 1,00 USD · 100 MB. Networks: Vodafone (5G), Wind (5G).
Connectivity in Thessaloniki
What you need to know: Second city; solid 4G/5G downtown.
Known weak-signal spots in Greece
- Smaller Aegean and Ionian islands (Ikaria, Folegandros)
- Mountain hiking routes (Taygetos, Pindus)
- Sea crossings between islands by ferry
- Ancient site interiors with thick stone walls
Apps you'll need
- Ride-hailing: Uber (Athens only), Beat (Taxibeat), local taxis — you need live data to book and track rides.
- Maps: Google Maps, Maps.me. Download offline maps for the area before leaving your hotel.
- Messaging: WhatsApp, Viber uses only ~30 MB/hr of active chat.
Practical tip
Indoor coverage in Thessaloniki (shopping centres, old buildings, underground areas) is often weaker than outdoors. If you lose signal inside, step outside or connect to venue Wi-Fi. For day trips outside the city, download offline maps in advance and don't rely solely on mobile data.