SimBalkan eSIM Data Plans for Japan

SimBalkan does not provide a truly unlimited data eSIM for Japan. All plans that include “Unlimited” in their name actually limit the high‑speed data to 1 GB, either as a daily allowance or total over the validity period. After that amount is reached, service speed is reduced.

Travelers who need more data can choose from fixed‑cap plans. For example, SimBalkan offers a 20 GB plan valid for 30 days at $11.42 USD and a 10 GB plan for 30 days at $6.81 USD. A 5 GB plan for 30 days is also available for $4.50 USD. These options give larger data allowances and may be more cost‑effective unless an extremely heavy data user requires unlimited high‑speed data.

SimBalkan does not offer an eSIM for Japan that includes a phone number or SMS capability. Travelers can purchase only data‑only plans from SimBalkan for use in Japan. For voice and messaging, users can rely on VoIP applications such as WhatsApp, Telegram, or iMessage over the data connection, although it is advisable to confirm that these services are accessible in Japan before buying a plan.

SimBalkan offers ten single‑country plans for Japan and five multi‑country plans that include Japan. The data caps span from 1 GB to 20 GB, with prices ranging from roughly $3.35 to $51.80. Some of the options feature a fixed data amount for the entire validity period, while other plans impose a daily data cap.