MobiMatter eSIM Data Plans for Japan

MobiMatter does not provide an unlimited‑data eSIM plan for Japan. Instead, the company offers fixed data options, such as a 60‑GB plan valid for 90 days at $45.99 USD and a 50‑GB plan valid for 30 days at $29.99 USD. Choosing a fixed‑data plan can be more cost‑effective unless a traveler requires an exceptionally high data volume.

MobiMatter does not offer a Japan eSIM that includes a local phone number or SMS capability. The provider’s Japan plans are data‑only, so travelers who require a physical phone number must use other services. Calls and messaging can instead be carried out through VoIP applications such as WhatsApp, Telegram, or iMessage over the data connection.

MobiMatter provides 19 single‑country plans and 27 multi‑country plans that include Japan. The available plans run from $4.49 to $74.99 and offer data caps between 1 GB and 60 GB, with validity periods ranging from 5 to 365 days. Most plans feature a fixed data amount, giving travelers a set amount of data to use over the validity period, while a few options allow a daily data limit, offering a more flexible allocation. Eligible plans permit tethering, enabling shared device connectivity.