Sim Local eSIM Data Plans for Japan

Sim Local does not provide a truly unlimited data eSIM for Japan. All of the plans that carry the “Unlimited” name, such as Japan Unlimited – 4 day, 7 day, 10 day, 15 day and 30 day, actually offer a data cap of 10 GB per day. Once this limit is reached, the speed is reduced, so the plan is not genuinely unlimited.

Instead, Sim Local offers a range of fixed‑data plans that can be more cost‑effective for typical travelers. For example, the Japan 20 GB plan is valid for 30 days and costs $24.50 USD, while the Japan 20 GB (Asia) option is valid for 31 days and costs $35.00 USD. These plans provide a set amount of high‑speed data without throttling, making them a practical alternative if you need a larger data allowance for your trip to Japan.

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 offers 10 single‑country plans and 10 multi‑country plans for Japan, providing a total of 20 data plans in the country. The available packages range in price from $4.00 to $93.50 and deliver data between 500 MB and 100 GB. Among these offerings, 5 plans are structured around a daily data cap, while the remaining 15 operate on a fixed data cap, giving customers the option to choose either a day‑by‑day data allocation or a total data allowance for the validity period.