Ohayu eSIM Data Plans for South Korea

No, Ohayu does not offer an unlimited‑data eSIM plan for South Korea. Travelers can instead choose from fixed data plans, such as the South Korea 50GB 30 days plan for $66.79 USD, which provides a large data allowance, or the 25GB Monthly plan at $49.49 USD that also includes 5G coverage. Choosing a fixed data plan can be more cost‑effective for most users, unless a traveler requires continuous data usage beyond the available fixed limits.

Ohayu does not offer a South Korea eSIM that includes a phone number or SMS capability. The provider only sells data‑only eSIM plans for travel in South Korea and currently does not provide telephony services in that destination.

Because a phone number and SMS are not available, travelers who need to communicate while abroad can rely on popular VoIP applications such as WhatsApp, Telegram, and iMessage, which operate over a data connection and allow voice calls and messaging without a traditional phone number.

Ohayu supplies a total of ten data packages for South Korea, comprising six single‑country options and four multi‑country bundles that include South Korea.
The single‑country plans provide data allocations between 1 GB and 50 GB with validity durations spanning one to thirty days, and prices range from roughly $0.49 to $76.79.
The multi‑country bundles offer the same overall data and validity ranges, allowing tethering and are typically aimed at users who will visit several countries during a short trip.