Avelis eSIM does not offer an unlimited data eSIM for Brunei. The available plans for the country are fixed data bundles with specific data caps and validity periods. For example, the Standard 20GB / 30 Days plan provides 20GB of high‑speed data for 30 days, and the Standard 10GB / 30 Days plan offers 10GB for the same duration. These fixed data plans can be more cost‑effective for most travelers, unless a user requires continuous data usage beyond the bundle limits, in which case they could add additional plans or consider a Pay‑as‑you‑go option.