JamboSim eSIM Data Plans for Sri Lanka

JamboSim does not provide a truly unlimited high‑speed data eSIM for Sri Lanka.
All of its plans that use the word “Unlimited” have a 3 GB/day cap; once that limit is reached the connection speed drops to 1000 kbps.

If a user needs more data, JamboSim offers several fixed‑data plans that are cost‑effective. For example, a 100 GB plan valid for 180 days costs $67.99 USD, and a 50 GB plan for 90 days is $37.99 USD. These plans supply a larger data allowance without the post‑limit speed reduction.

JamboSim does not provide Sri Lanka eSIM plans that include a local phone number or SMS capability. All of their Sri Lanka offerings are data‑only, so there is no built‑in voice or text service. Travelers who need voice or messaging can use internet‑based services such as WhatsApp, Telegram or iMessage over the data connection.

JamboSim provides 6 single‑country data plans and 33 multi‑country data plans that include coverage for Sri Lanka. The available plans span a price range from roughly $1.99 to $99.99 and data caps from 200 MB to 100 GB. Within the single‑country options users can choose between fixed‑data plans, where the allotted data remains constant for the entire validity period, and daily‑cap plans, where the data allowance resets each day. The multi‑country catalogue likewise offers a combination of fixed‑data packages that maintain a consistent data amount across their validity and daily‑cap packages that refresh daily.