Roamless does not offer a truly unlimited data eSIM for Vietnam. Its offerings are fixed‑data plans with caps ranging from 45GB to 200GB, all of which are valid for an unlimited period. The plans support 3G and 4G connectivity, allow tethering, and include a pay‑as‑you‑go feature once the data allowance is used.
Travelers who need large amounts of data can consider the 200GB plan priced at $490.00 USD, the 150GB plan at $367.50 USD, or the 100GB plan at $245.00 USD. These options provide substantial data for extended stays and may prove more cost‑effective for moderate to heavy data users compared to purchasing multiple smaller plans. If a user consumes data at a very high volume, a fixed data plan might be the better choice, while an extremely heavy user may need to combine several plans.