Bordersim does not provide an unlimited data eSIM plan for Japan. All of its Japanese offerings have a hard data cap, with the largest available bundle being 50GB. These bundles are fixed‑data plans that expire after a set validity period.
Travelers can choose from several fixed‑data options, such as the Japan 50GB 30‑day plan priced at $22.99 USD or the Japan 50GB 180‑day plan for $36.49 USD. These plans may be more cost‑effective for most users, while heavy data consumers might find a higher‑cap plan or the option to purchase additional Pay‑as‑you‑go credit if needed.