ByteSIM does not provide an unlimited data eSIM for El Salvador. All available plans feature a fixed data allowance of 20GB, with validity periods ranging from 3 to 15 days – for example, the “El Salvador 20GB for 3 days” plan costs $59.50 USD and the “El Salvador 20GB for 15 days” plan costs $74.90 USD.
If you need more data than the 20GB options, you may consider purchasing multiple plans or a higher‑capacity plan if available. Fixed data plans can be more cost effective for most travelers, while heavy data users may need to look for alternative carriers or plans that offer larger data caps.