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 a total of 12 single‑country plans and 58 multi‑country plans that cover Singapore. The single‑country packs are all fixed data amount plans, giving travellers a set data volume for a set period. The multi‑country offerings include both fixed data amount plans and daily data cap plans, the latter limiting the amount of data that can be used each day while still allowing data to roll over between days. Across all JamboSim plans the price ranges from about $1.99 to $125.99, while the data caps span from 200 MB up to 100 GB, with validity periods ranging from a single day to a full year.