Ohayu eSIM Data Plans for Mongolia

Ohayu does not provide an unlimited data eSIM plan for Mongolia. Travelers who need larger data allowances can choose from fixed data plans instead. For example, Ohayu offers a 50GB 90‑day plan for $173.79 USD and a 20GB 90‑day plan for $72.49 USD, both of which include tethering. Other plans include 15GB for 60 days, 10GB for 30 days, and 5GB for 30 days, all priced proportionally. Selecting a fixed data plan may be more cost‑effective for most users unless very heavy data usage is expected, in which case an unlimited plan would be preferable if it were available.

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 provides six single‑country data plans for Mongolia, and there are no multi‑country coverage plans listed for that country. The offerings cover data caps between 3 GB and 50 GB and are priced in the range of approximately $18 to $174 USD. Some of the plans include a tethering allowance, enabling the data to be shared across multiple devices.