WonderConnect does not provide a true unlimited data eSIM for Brunei. The plans it offers for the country are fixed data bundles, with data caps of 10 GB, 5 GB, 3 GB, or 1 GB, each valid for a set period (30 days for the larger bundles and 7 days for the 1 GB bundle). Travelers who want a large data allowance can choose the 10 GB plan, which gives 10 GB of high‑speed 5G data for 30 days. As fixed data plans are typically more cost‑effective for most users, WonderConnect’s portfolio may be the best option for those who do not need a truly unlimited data plan for Brunei.