JamboSim eSIM Data Plans for Sri Lanka

JamboSim does not offer a truly unlimited data eSIM for Sri Lanka. The plans that carry the “Unlimited” label provide a high‑speed data allowance of 3 GB per day; once that daily cap is reached the speed is reduced to 1000 kbps.

If a traveler needs a larger data allocation with no speed throttling, JamboSim provides fixed‑data options such as the 100 GB plan for 180 days, the 50 GB plan for 90 days, and the 20 GB plan for 30 days, all of which have unrestricted high‑speed data throughout their validity.

Yes, JamboSim sells Sri Lanka data plans that include a phone number and SMS functionality. The available plans range from 1GB for 7 days to 20GB for 365 days and are priced between $11.99 USD and $105.99 USD. Each plan supplies a phone number with the dialing code +1, allowing outbound calls and outbound SMS messages; inbound voice and SMS are not supported. The numbering is a US-based phone number rather than a local Sri Lankan number. Travelers who need specific call or messaging features should verify the details directly with JamboSim before purchasing.

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.