Ovosim eSIM Data Plans for Vietnam

Ovosim does not provide a truly unlimited high‑speed data eSIM for Vietnam. All of the plans labelled with “Unlimited” in their names have fixed data caps, such as the Vietnam Unlimited MAX – 30 Days plan, which offers 150GB of high‑speed data for 31 days, and the Vietnam Unlimited STANDARD – 30 Days plan, which provides 90GB for the same validity period. After the allocated data is used, the speed would be reduced, although the specific throttled speed is not listed. For travelers who need large amounts of data without a continuous unlimited supply, these fixed‑data options are available and can be more cost‑effective than attempting to use a plan that is nominally “unlimited” but in practice capped.

Ovosim does not provide a Vietnam eSIM that includes a local phone number or SMS capability. The service from this provider is limited to data‑only plans, so travelers will not receive an inbound or outbound voice or text service through the eSIM.
To communicate while abroad, users can rely on VoIP applications such as WhatsApp, Telegram or iMessage, which use the available data connection for calls and messaging without needing a separate phone number or SMS feature.

Ovosim provides a mix of single‑country and multi‑country data plans that include coverage in Vietnam. Across its catalogue there are 32 single‑country plans and 52 multi‑country plans that can be activated for use in Vietnam. The available plans span a price range from roughly $5.18 to $115.19, with data caps varying between 1 GB and 150 GB and validity periods from 6 to 31 days. Some plans deliver a fixed amount of data for the entire validity period, while others allow a daily data cap that resets each day, giving travelers flexibility depending on their usage patterns.