mobineX eSIM Data Plans for Japan

MobineX does not provide a truly unlimited data eSIM for Japan. The plans that carry the “Unlimited” name all have fixed data caps that range from 1GB to 169GB, after which the speed is reduced. For instance, the Unlimited Standard plan offers 1GB of high‑speed 5G data and then drops to 128kbps, while the Unlimited – 30 Days plan supplies 169GB of high‑speed data before throttling to the available 4G or 5G bandwidth. Travelers seeking uninterrupted high‑speed data may find the fixed‑data options more suitable, such as the 100GB plans for 90 days, 180 days, or 365 days, which provide full‑speed data without a reduced‑speed tier.

MobineX does not offer Japan eSIM plans that provide a phone number or SMS capability. The only plans available from mobineX for Japan are data‑only eSIMs, without any voice or text messaging service.

Travelers wishing to communicate while in Japan can rely on VoIP applications such as WhatsApp, Telegram, and iMessage. These services use the data connection supplied by the eSIM, allowing calls and messaging without a traditional phone number or SMS ability.

mobineX offers 49 single‑country data plans and 116 multi‑country plans that include Japan. Prices vary from about $1.20 to $480.00, data caps range from 1 GB to 169 GB, and validity periods span from one day to one year. Single‑country plans provide a fixed amount of data for use only within Japan, whereas multi‑country plans typically give daily data limits to support usage across several countries during a trip.