Roamingo does not provide a truly unlimited data eSIM for Portugal. The only plan that carries “Unlimited” in its name – Europe Unlimited for 1 day – actually includes 2GB of high‑speed data; once this allowance is reached the data speed is throttled.
Travelers can instead choose fixed‑data plans. For example, a 20GB option for 30 days costs $29.10 USD (Portugal and 50 other countries) and a 10GB 30‑day plan is $16.40 USD (Portugal and 50 other countries). Similar Portugal‑only plans are available at $29.50 USD for 20GB and $17.00 USD for 10GB. Fixed data plans can be more cost‑effective unless a user is an extremely heavy data consumer.