4S eSIM eSIM Data Plans for Vietnam

4S eSIM does not provide a truly unlimited data eSIM for Vietnam; every plan that carries “Unlimited” in its name has a finite data cap and slows to 1000kbps once that cap is reached. Instead, travelers can choose from large fixed data plans, such as the 50GB‑for‑90‑days option, which offers a generous amount of data at the original speed until the 50GB is exhausted. These fixed plans give high‑speed data without throttling until the data allowance is used up.

4S eSIM does not provide a local phone number or SMS service for Vietnam; it only offers data‑only eSIM plans. Travelers who need voice or text can use VoIP applications such as WhatsApp, Telegram or iMessage over the data connection, though some destinations, including Vietnam, may block or limit certain services, so users should confirm that their preferred apps work before purchasing.

In Vietnam, 4S eSIM offers 56 single‑country plans and 108 multi‑country plans. Prices across these options range from $1.67 to $195.83, while data caps vary from 714 MB up to 50 GB, allowing travelers to choose a package that fits their data needs and budget.