eSIMX eSIM Data Plans for Japan

eSIMX does not provide an unlimited data eSIM for Japan; all Japan‑specific plans have a fixed data cap, the largest being 100 GB for 30 days. Travelers who need more data can opt for one of eSIMX’s fixed data plans, such as the Japan 30 GB 7‑day or Japan 30 GB 30‑day bundles, which offer high‑speed 5G service within Japan for a set period. Choosing a fixed data plan can be more cost effective for most users, unless the traveler expects to consume a very large amount of data beyond the available bundles.

eSIMX provides Japan eSIM plans that include a phone number and SMS capabilities. The available options are 20GB, 50GB, and 100GB data plans, each valid for 30 days and priced at $33.80, $64.80, and $85.80 USD respectively. These plans use a phone number with the dialing code +376, allowing both inbound and outbound voice calls and inbound and outbound SMS messages. Because the number is not a local Japanese number, users should check with eSIMX to confirm call and messaging functionality for their specific needs.

eSIMX provides 16 single‑country data plans that cover Japan only, and 27 multi‑country plans in which Japan is one of the included destinations. The available packages span a price range from roughly $2.80 to $85.80 USD and include data allowances between 1 GB and 100 GB over validity periods of 1 to 30 days. Among the catalog, 12 plans are structured with a daily data cap—offering a set amount of data per day—while 31 plans provide a fixed data amount that remains available for the full validity period.