Ohayu eSIM Data Plans for Mongolia

Ohayu does not offer an unlimited data eSIM plan for Mongolia.
Instead, Ohayu sells fixed‑data plans that allow a set amount of high‑speed data. For example, the Mongolia 50GB 90 days plan costs $172.49 USD and the Mongolia 20GB 90 days plan costs $72.49 USD, both of which include tethering and cover the entire country on LTE. Choosing a fixed‑data plan can be more cost‑effective unless you anticipate using data at a very high volume.

Ohayu does not offer an eSIM for Mongolia that includes a phone number or SMS capability.
The provider only offers data‑only eSIM plans for this destination; travelers can use VoIP applications such as WhatsApp, Telegram or iMessage over the data connection for voice and messaging.

Ohayu supplies six single‑country data plans for Mongolia, ranging in price from $17.79 to $172.49 and in data capacity from 3 GB to 50 GB. These plans come with validity periods between 14 and 90 days and, for the types available, allow tethering. No multi‑country plans are offered by Ohayu for Mongolia.