ZenSim does not provide a truly unlimited data eSIM for Singapore. The plans that carry the word “Unlimited” actually offer 3GB of high‑speed data per day and then throttle the speed to 1000kbps once that daily limit is reached, so the data is not unlimited.
Travelers who need a larger, fixed amount of high‑speed data can choose ZenSim’s fixed data plans, such as the 40GB plan valid for 30 days or the 20GB plan valid for 15 days. These plans give a set amount of data that can be used at full speed during the validity period and can be more cost‑effective for most users unless very heavy data consumption is required.