Maya Mobile does not provide a truly unlimited data eSIM for Brunei. The plans that carry “Unlimited” in their name are fixed‑data bundles that allow 5GB per day; after the 5GB daily allowance is used, the speed is throttled to 3000kbps.
For example, the 3‑Day Unlimited Global Data plan gives 5GB per day for 3 days, while the 30‑Day Unlimited Global Data plan offers the same 5GB per day over 30 days. Travelers who need more data without throttling would need to purchase additional credit or look at other providers.