ZenSim eSIM Data Plans for Singapore

No, ZenSim does not provide a truly unlimited data eSIM for Singapore. All plans called “Unlimited” actually allocate a fixed amount of high‑speed data, in this case 3 GB per day, after which the speed would be reduced (though the reduced speed is not specified in the available data).

Travelers who need larger data amounts can choose fixed‑data plans instead. For example, ZenSim offers a Singapore 20 GB plan for 10 days at $18.00 USD and a 10 GB plan for 10 days at $13.00 USD. These options give a larger overall allowance and may be more cost‑effective for most users.

ZenSim does not offer eSIM plans that include a local Singapore phone number or SMS capability. The provider offers only data‑only eSIMs for the region, and travelers can use VoIP applications such as WhatsApp, Telegram, and iMessage over the data connection to make calls and send messages without needing a local phone number.

ZenSim supplies 9 single‑country plans that cover only Singapore and another 9 multi‑country plans that list Singapore among the destinations. The plans are priced from roughly 13 USD to 70 USD, with data limits ranging between 3 GB and 40 GB. The catalogue includes both daily‑data‑cap plans, which deliver a set amount of data each day (four such options), and fixed‑data‑cap plans that offer a total data allotment for the validity period (fourteen options).