Where connectivity is solid, where it drops, and how to plan around it
Wi-Fi is standard and reliable in Baku hotels, cafés, and restaurants, and mobile data coverage across the city is genuinely good — fast enough for video calls in most central neighbourhoods. The picture changes outside the capital: Sheki and Gabala town centres have decent 4G, but coverage thins quickly once you're driving through mountain passes or visiting more remote attractions like Khinalug.
Download offline maps (Google Maps or Maps.me both work well for Azerbaijan) before heading into the mountains, and save any documents — visa PDF, hotel confirmations — locally on your phone rather than relying on email access mid-drive. A local SIM with a generous data allowance, covered in our SIM card guide, solves most connectivity issues within towns; the mountain gaps are a matter of terrain, not provider.