mobineX eSIM Data Plans for Japan

MobineX does not offer a truly unlimited data eSIM for Japan. All plans listed under “Unlimited” in their name include a fixed data cap, such as 1 GB, 5 GB, 28 GB, 42 GB, 52 GB, 65 GB, 91 GB, or 169 GB, with the speed reduced once the limit is reached.

Fixed‑data plans are available as alternatives. For example, mobineX offers a 169 GB plan valid for 30 days at $75.50 USD and a 100 GB plan valid for 90 days at $112.00 USD, which provide large amounts of high‑speed data without the need for unlimited coverage. Choosing a fixed‑data plan can be more cost‑effective unless the user expects to exceed the available data.

MobineX does not offer Japan eSIM plans that provide a phone number or SMS capability. The only plans available from mobineX for Japan are data‑only eSIMs, without any voice or text messaging service.

Travelers wishing to communicate while in Japan can rely on VoIP applications such as WhatsApp, Telegram, and iMessage. These services use the data connection supplied by the eSIM, allowing calls and messaging without a traditional phone number or SMS ability.

mobineX offers 49 single‑country data plans and 116 multi‑country plans that include Japan. Prices vary from about $1.20 to $480.00, data caps range from 1 GB to 169 GB, and validity periods span from one day to one year. Single‑country plans provide a fixed amount of data for use only within Japan, whereas multi‑country plans typically give daily data limits to support usage across several countries during a trip.