Simfinity does not provide an unlimited‑data eSIM plan for Sri Lanka; all of its local plans have a fixed data allowance. Travelers can choose from several high‑cap plans, such as the 20 GB plan for 30 days at about $43.40 USD, or the 10 GB plan for 30 days at about $23.80 USD. An alternative is the global or Asia Pacific Pass, which offers 25 GB of data with unlimited validity (but still capped at 25 GB) and covers Sri Lanka along with multiple other countries.
Because the plans are fixed‑data, they can be more cost‑effective for most users, especially if data usage is moderate. Only travelers who need more than the supplied caps may find value in paying for additional data increments, but for standard use a high‑cap fixed plan will typically be the best option.