JamboSim eSIM Data Plans for Singapore

JamboSim does not provide a plan that offers truly unlimited high‑speed data for Singapore. The plans marketed with the name “Unlimited” give 3 GB of high‑speed data per day; after that limit is reached the speed is reduced to 1000 kbps.

Travelers who need more data without throttling can instead choose a fixed‑amount plan. For example, the eSIM Singapore 20 GB / 30 days plan provides 20 GB of high‑speed data at a lower cost, making it a more cost‑effective option for heavy data users.

Yes. JamboSim sells Singapore‑covered eSIM plans that include a phone number and outbound SMS capability. The plans range from 1GB for 7 days priced at $11.99 USD to 20GB for 365 days at $105.99 USD. Each plan offers an international dialing code of +1, allowing users to make outbound calls; outbound SMS is also supported. Calls and SMS can be sent but not received, and callers can confirm any further details directly with JamboSim.

JamboSim offers 12 single‑country plans that are specifically available in Singapore and 33 multi‑country plans that include Singapore as part of their coverage.
Among the single‑country options, 12 plans have daily data caps, allowing users to control how much data they use each day. The multi‑country bundle plans consist of 33 fixed‑data‑cap packages that provide a set amount of data for the entire validity period.
Across both types of plans the prices range from about $1.99 to $94.99, while the data caps vary from 200 MB up to 100 GB, giving travelers flexibility to choose a plan that matches their usage needs.