Sim Local eSIM Data Plans for Japan

Sim Local does not provide a truly unlimited high‑speed data eSIM for Japan. Plans that carry the “Unlimited” name, such as Japan Unlimited – 7 Day or Japan Unlimited – 10 Day, actually offer a 10 GB/day cap; after that limit is reached the connection is throttled, although the exact reduced speed is not specified in the plan details.

If a user wants higher data limits, Sim Local offers fixed‑data alternatives. For example, the Japan Unlimited – 7 Day plan gives 10 GB each day for 7 days at $19.00 USD, and the Asia 20 GB plan supplies 20 GB for 31 days at $35.00 USD, covering Japan and surrounding countries. These fixed‑data plans are often more cost‑effective for travelers who need substantial data without the constraints of a per‑day cap.

Sim Local does not provide a phone number or SMS service for Japan. All of its Japan eSIM plans are data‑only, so there is no way to receive or send text messages or make calls directly through a local mobile number. Travelers can still use the data connection to access VoIP services such as WhatsApp, Telegram, and iMessage for calls and messaging.

Sim Local provides a total of five single‑country data plans exclusively for Japan, and four multi‑country plans that cover Japan along with other destinations. The price range across these options spans from roughly $4 to $77.50, while the data caps vary between 500 MB and 20 GB. Providers offer both daily data‑cap plans—where the data allowance resets each day—and fixed data‑cap plans, which give a one‑time total amount of data for the entire validity period.