TailSim eSIM Data Plans for Vietnam

TailSim does not provide a truly unlimited data eSIM for Vietnam. All of its plans are fixed‑data bundles. The bundles that contain “Unlimited” in the name give a daily allowance of 3 GB for the selected number of days and then reduce speed to 1000 kbps after the limit is reached. If a traveler needs more data, TailSim offers higher‑capacity fixed plans such as 50 GB, 20 GB, or 10 GB for 30 days, all with 5 G coverage in Vietnam.

TailSim does not provide a Vietnam eSIM plan that includes a local phone number or the ability to send or receive SMS messages. The provider offers only data‑only eSIMs for travelers in Vietnam. Travelers who need voice or text capabilities can rely on popular VoIP applications such as WhatsApp, Telegram, or iMessage, but they should verify that these services are accessible in Vietnam before purchasing a plan.

TailSim provides 14 single‑country data plans for Vietnam, with no multi‑country options available. The assortment includes eight daily data cap plans and six fixed data cap plans. Prices span from $3.99 to $82.50, while data limits range from 1 GB to 50 GB. Validity periods for these plans run from 3 to 30 days.