eSimpli eSIM Data Plans for Japan

eSimpli does not offer a truly unlimited high‑speed data eSIM for Japan. The plans that list “Unlimited” in their names provide only a high‑speed allowance of 1GB per day; once that threshold is met the speed is throttled to 1250 kbps.

If a user needs more data, eSimpli offers fixed‑data plans such as the 20GB 30‑day plan and the 10GB 30‑day plan. These plans provide larger data caps at a consistent speed and may be more cost‑effective for travelers who use a lot of data.

eSimpli does not offer any Japan eSIM plans that include a phone number or SMS capability. Travelers who purchase an eSimpli eSIM for Japan will receive a data‑only plan only. Voice and text messages can still be sent through popular VoIP apps such as WhatsApp, Telegram, and iMessage over the data connection, but some destinations may restrict or block access to these services, so travelers should verify that the apps they rely on are available in Japan before buying a plan.

eSimpli offers 9 single‑country data plans for Japan and 5 multi‑country data plans that include the Japanese market. The plans are priced between roughly $8 and $110, with data caps ranging from 1 GB to 20 GB. Some plans provide a fixed amount of data that remains available for the entire validity period, while other plans offer a daily data cap that is refreshed every day.