MobiMatter eSIM Data Plans for Japan

MobiMatter does not offer an unlimited data eSIM plan for Japan. All plans listed by the provider have a defined data cap and a fixed validity period. Travelers who need a larger amount of data can choose from fixed data plans such as the Japan 60 GB 90 days plan priced at $49.99 USD or the Japan 50 GB 30 days plan priced at $29.99 USD. These options provide a substantial data allowance and may be more cost‑effective for most users, though they are not unlimited and will expire after their stated validity.

MobiMatter does not provide a Japan eSIM that includes a phone number or SMS capability. The provider offers only data‑only plans for travelers in Japan. Users who need voice or messaging can rely on VoIP applications such as WhatsApp, Telegram, or iMessage over the data connection, but they should verify that these apps function in Japan before purchasing, as some destinations may block or restrict certain services.

MobiMatter provides 23 single‑country data plans that are limited to Japan and 42 multi‑country plans that can be used in Japan as well as other destinations. The single‑country plans normally feature fixed data amounts that cover the entire validity period, while the multi‑country plans also come with daily data caps to aid in multi‑day travel. Across all Japan offerings the prices range from roughly $3.99 to $74.99, and the data caps span from 1 GB up to 60 GB.