JamboSim eSIM Data Plans for Portugal

JamboSim does not offer a truly unlimited data eSIM for Portugal. Every plan in the catalogue has a hard data cap; the plans that carry “Unlimited” in their name provide only up to 3 GB of high‑speed data per day, after which the speed is throttled to approximately 1 Mbps as noted in the provider’s own description. No plan shows an unlimited data cap in the dataset.

For travelers who need large amounts of high‑speed data, fixed data plans are available instead. The 100 GB plan valid for 180 days and the 50 GB plan valid for 7 days offer substantial data allowances and may be a more cost‑effective choice for most users.

JamboSim provides several eSIM plans that include a phone number and the ability to send SMS while in Portugal. The plans range from 1 GB of data for 7 days at $11.99 USD to 20 GB of data for 365 days at $105.99 USD. Each plan grants a phone number with the dialing code +1, which is a North American number, not a local Portuguese number. Calls can be made from this number and SMS messages can be sent, but neither inbound calls nor inbound SMS are supported. Users wishing to confirm specific usage details or any changes to call and SMS capabilities should contact JamboSim directly.

JamboSim offers 12 single‑country plans for Portugal and 46 multi‑country plans that include Portugal. The single‑country plans start at $1.99 and go up to $195.99, with data caps ranging from 200 MB to 100 GB. The multi‑country plans cover the same price and data ranges. Some plans are fixed‑data capped, giving a set amount of data for a set period, while others apply a daily data cap, after which the speed is reduced to 1 GB.