eSIM‑On Shop does not have an unlimited data eSIM for Brunei. All of its available plans for Brunei offer a fixed data allowance, the largest being 20 GB for 30 days.
Travelers who need more data can choose a larger fixed‑data plan such as the 20 GB 30 day option or the 3 GB 15 day plan; these plans can provide more cost‑effective coverage for moderate to heavy usage, though they still have a cap. If a user requires truly unlimited data, they would need to look beyond the current eSIM‑On Shop offerings.