eSimfly eSIM Data Plans for Serbia

eSimfly does not provide a truly unlimited high‑speed data eSIM for Serbia. Plans that use the term “Unlimited” in the name—such as Europe Unlimited 1 Day (1GB) and Serbia Unlimited 3 Days (3GB/day)—still include fixed data caps and do not offer unrestricted data traffic. The speed is maintained up to the specified data amount and any traffic beyond that would be throttled, not truly unlimited.

Instead, eSimfly offers fixed‑data eSIM plans that give a larger amount of data for a set validity. For example, the “Europe 50 GB 30 Days” plan provides 50 GB for 30 days, and the “Serbia Unlimited 30 Days” plan gives 3 GB per day for 30 days. These fixed‑data options are the only alternatives for travelers wanting extensive data use while visiting Serbia.

eSimfly does not provide a Serbia eSIM plan that includes a phone number or SMS capability. The only eSIM options from this provider for Serbia are data‑only plans, which allow internet access via 5G, 4G, or 3G, but do not support traditional voice calls or SMS. Travelers who need messaging or calling can instead use popular VoIP applications such as WhatsApp, Telegram, or iMessage over the data connection.

eSimfly lists 12 single‑country data plans that specifically cover travel to Serbia. These plans vary in price from about $2.20 to $211.15 and in data capacity from 1 GB up to 50 GB, with validity periods ranging from a single day to a full year.