ESIMFUN eSIM Data Plans for Japan

ESIMFUN does not offer an unlimited data eSIM plan for Japan. The plans available all have fixed data allowances. For example, there is a 30GB data plan valid for 30 days priced at $31.93 USD, and a 20GB plan valid for 30 days priced at $210.94 USD. Other options include a 30GB plan for 30 days at $44.72 USD and a 15GB plan for 30 days at $21.38 USD. Choosing a fixed data plan can be more cost‑effective for most travelers, unless the user is an extremely heavy data consumer.

ESIMFUN does not offer a Japan eSIM that includes a local phone number or SMS capability. The provider only sells data‑only plans for Japan, so travelers do not receive a traditional mobile number to make regular calls or receive text messages.

Travelers can still communicate by using VoIP applications such as WhatsApp, Telegram, or iMessage, which work over the data connection and provide voice and messaging functions without requiring a phone number or SMS service.

ESIMFUN lists 16 single‑country data plans and 10 multi‑country plans that include Japan. The available plans cover a price range from about $6.36 to $210.94 and offer data caps between 1 GB and 30 GB over validity periods of 3 to 30 days. Among these, four plans are structured with a daily data cap, limiting the amount of data you can use each day, while the remaining 22 plans use a fixed data cap, granting a set quantity of data for the entire validity period.