eSIM4Travel eSIM Data Plans for Japan

No, eSIM4Travel does not provide a truly unlimited data eSIM for Japan. The plans that carry the word “Unlimited” in their name actually give 3GB of high‑speed data each day and reduce the speed to 1000kbps once that daily limit is reached; they are fixed data plans with a set validity period.

Travelers who need a large amount of data can choose from eSIM4Travel’s fixed data plans, such as the 50GB/30 days plan on Softbank and KDDI or the 48.83GB/30 days plan on DOCOMO. These plans offer unthrottled high‑speed data for 30 days and may be more cost‑effective for users who consume a lot of data.

eSIM4Travel does not offer a Japan eSIM that includes a phone number or SMS capability. The provider sells only data‑only eSIM plans for Japan. Travelers who need voice or messaging can use VoIP applications such as WhatsApp, Telegram, or iMessage over the data connection, but the availability of these apps can be subject to local restrictions, so it is advisable to confirm that the apps you rely on work in Japan before purchasing.

eSIM4Travel lists 22 single‑country data plans that cover Japan and 12 multi‑country plans that include Japan. The available plans span a price range from $0.69 to $72.18 and a data cap range from 1 GB to 50 GB. Among the plans, 26 are fixed‑data‑cap offerings, while 8 provide a daily data cap, allowing users to choose between a set amount of data for the entire validity period or a daily allowance that resets each day.