mobineX eSIM Data Plans for Japan

MobineX does not provide a truly unlimited data eSIM for Japan; all of its plans have a specific data cap. The plans that carry the “Unlimited” label are actually fixed‑data packages that reduce speed after reaching the set limit (for example, 1 GB or 5 GB before throttling to 128 kbps or 1024 kbps). For travelers who need more data, MobineX offers high‑capacity options such as a 65 GB plan valid for 10 days or a 100 GB plan valid for up to 90 days, which can be more cost‑effective unless an exceptionally heavy data user is required.

MobineX does not provide a Japan eSIM that includes a phone number or SMS capability. The only plans the provider offers for Japan are data‑only eSIMs. Travelers looking for voice and text can use VoIP applications such as WhatsApp, Telegram or iMessage over the data connection instead.

MobineX has 44 single‑country plans and 108 multi‑country plans that cover Japan. Prices vary from $1.20 to $480.00, while data caps range from 1 GB up to 169 GB and validity periods span 1 to 365 days. Some of the plans provide a fixed data amount for the entire validity, whereas others impose a daily data cap, allowing travelers to control daily usage while still benefiting from the overall data allowance.