Ovosim eSIM Data Plans for Vietnam

Ovosim does not provide a truly unlimited data eSIM for Vietnam. All plans listed under the “Unlimited” name contain a fixed data cap; for example, the Vietnam Unlimited STANDARD 5 Days plan provides 15 GB of high‑speed data for 6 days, and the Vietnam Unlimited MAX 30 Days plan offers 150 GB for 31 days. After the allocated allowance is reached, the speed would be throttled, which is not reflected in the plan description.

For travelers who need a large amount of data, Ovosim offers fixed‑data plans as an alternative. A good example is the Vietnam Unlimited MAX 30 Days plan, which supplies 150 GB of high‑speed data for 31 days at $90.99 USD, or the Vietnam Unlimited LITE 30 Days plan, which offers 60 GB for the same period at $67.96 USD. These fixed‑data options can be more cost effective for users who are not extremely heavy data consumers.

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.