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 offers 19 single‑country plans that are dedicated to Japan and 35 multi‑country plans that include Japan in their coverage area. The plans range in price from $3.99 to $74.99, with data limits spanning 1 GB to 60 GB and validity periods from 5 to 365 days. Single‑country plans provide a fixed amount of data for the device, while the multi‑country options allow the same data to be used across several destinations, sometimes with daily data caps. Many of the plans permit tethering, giving users the flexibility to share the connection with other devices.