MobiMatter eSIM Data Plans for Japan

MobiMatter does not provide unlimited‑data eSIM plans for Japan. Instead, the provider offers fixed data plans such as the Japan 60 GB plan valid for 90 days at a cost of $49.99 USD and a Japan 50 GB plan valid for 30 days at $29.99 USD. Choosing a fixed data plan can be more cost‑effective for most travelers, although users who require extremely high data usage may prefer larger or multi‑country bundles.

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.