Numero eSIM does not provide an unlimited data eSIM for Sri Lanka. The available Sri Lanka plans are fixed data bundles: 5 GB for 30 days, 10 GB for 30 days, and 20 GB for 30 days. Each plan must be used within its validity period (30 days for the local bundles).
If a larger data allowance is required, travelers can opt for a fixed data plan such as the 20 GB for 30 days bundle, which offers a higher volume of data at a fixed price. For users with very high data needs, purchasing a higher‑capacity bundle may be more cost‑effective than paying for many smaller bundles, but the choice depends on the amount of data the traveler expects to use.