nextSIM does not provide a truly unlimited high‑speed data eSIM for Brunei. The plans that carry “Unlimited” in their names actually grant 1 GB or 2 GB of high‑speed data and then throttle the connection to 512 kbps or 2000 kbps once the stated amount is used, so they are not unlimited in the strict sense.
If a traveler needs more data, nextSIM offers fixed data plans such as the 20 GB 30 days Standard for Brunei, which delivers full‑speed data for the full 30‑day period, or the 30 GB 30 days Premium global plan that includes 5G coverage in Brunei as part of a worldwide bundle. These fixed plans can be more cost‑effective for users who require a larger, unrestricted data allowance.