Ubigi eSIM Data Plans for Japan

No, Ubigi does not offer an unlimited data eSIM plan for Japan. All of Ubigi’s Japan plans have a defined data cap, with the largest available caps currently at 60GB or 50GB for a 30‑day validity period.

Fixed‑data options are available and may be more cost‑effective for most travelers. For example, Ubigi provides a 60GB plan for $45.00 USD and a 60GB plan for $65.00 USD, each lasting 30 days, as well as a 50GB plan for $55.00 USD with the same 30‑day validity. These examples illustrate the types of fixed data allowances offered, though the full catalogue includes additional plans with different sizes and price points.

Ubigi does not provide a Japan eSIM that includes a phone number or SMS capability. The plans they offer for Japan are data‑only, allowing high‑speed internet access but not traditional voice or text services. Travelers can use popular VoIP applications such as WhatsApp, Telegram, and iMessage over the data connection for calls and messaging.

Ubigi provides 15 single‑country plans and 30 multi‑country plans that include Japan. The available plans cover a price range of roughly $2 to $210, a data cap range from 500 MB up to 60 GB, and validity periods from one day to one year. Most of its offerings are fixed‑data plans, but a small subset (two plans) feature a daily data cap that resets every 24 hours. This variety supplies travelers with both short‑term and long‑term options, as well as choices between a one‑time data allotment and daily‑renewing data allowance.