eSimpli eSIM Data Plans for Japan

eSimpli does not provide a truly unlimited data eSIM for Japan. The plans that carry the “Unlimited” name actually offer 1 GB per day of high‑speed data and, once that limit is reached, the speed throttles to 1250 kbps.

For travelers who require more data, eSimpli offers fixed‑data plans such as 20 GB for 30 days or 10 GB for 30 days. These high‑data‑allowance plans run at full 5G speed throughout the validity period and may be more cost‑effective for heavy data usage.

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.