FlyEsim.me does not provide any truly unlimited data eSIM plans for Vietnam. All of the “Unlimited” name plans listed in the provider’s catalog actually offer a hard cap of 1GB or 2GB per day, after which the connection speed is reduced to 512kbps or 2000kbps respectively. Because of this capped data limit, those plans should be considered fixed‑data plans rather than unlimited.
If you need a large amount of high‑speed data, FlyEsim.me offers several fixed‑data options that are more cost–effective for typical travelers. For example, the Asia 20GB 15Days plan provides 20GB of data valid for 15 days at a price of $33.61 USD, while the Asia 10GB 7Days plan gives 10GB for seven days for $20.16 USD. These plans supply a substantial data allowance without the speed throttling that occurs in the “Unlimited” name plans.