mobineX eSIM Data Plans for Japan

mobineX does not provide a truly unlimited data eSIM for Japan. All plans that carry the name “Unlimited” actually have a fixed data allowance, from 1 GB up to 169 GB, depending on the validity period. Once the allotted data is used, the connection is throttled to a reduced speed—128 kbps for the standard tiers and 1 024 kbps for the gold tier.

Travelers who need more data without speed reduction can choose fixed‑data plans from mobineX. For example, the 100 GB package valid for 90 days is priced at $112.00, while the 169 GB plan for 30 days costs $75.50. These fixed‑data options provide larger data volumes at the original speed and may be more cost‑effective for heavy data users.

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.