Simbye does not offer a truly unlimited high‑speed eSIM plan for Singapore. The plans labelled “Singapore Unlimited 7 Days” and “Singapore Unlimited 15 Days” provide 2 GB of high‑speed data per day for the specified validity period; after those data are used the speed is reduced to 1000 kbps and then the remaining data is unlimited at 1 Mbps, which is not fully unlimited speed.
If an unlimited data experience is required, a fixed data plan can be chosen instead. For example, Simbye offers a 50 GB plan valid for 180 days or a 20 GB plan valid for 30 days, both of which provide a large amount of high‑speed data that must be used within their validity window. Choosing a fixed plan may be more cost‑effective unless a traveller expects to consume data far beyond the amount offered.