ETravelSim eSIM Data Plans for Japan

ETravelSim does not provide a plan that offers unlimited high‑speed data for Japan. All of its Japan‑specific eSIM offers are actually “unlimited” in name only; each plan allows 4GB of high‑speed data per day and, once that daily limit is reached, the connection is throttled to 128 kbps.

If you need more data, ETravelSim provides fixed‑amount plans that may be more suitable. For example, a 50 GB plan for 30 days costs $35.99 USD, and a 25 GB plan for 30 days costs $45.99 USD. Choosing a fixed data plan can offer better value unless you are a very heavy data user.

ETravelSim does not provide a Japan eSIM that includes a phone number or SMS capability. The Japan plans available from ETravelSim are data‑only, so no voice or text messaging is included in the package.

Travelers who need to make calls or send messages can use VoIP applications such as WhatsApp, Telegram, or iMessage over the data connection provided by the eSIM. These apps work without a local phone number or SMS support.

ETravelSim offers 15 single‑country data plans that cover Japan, along with 8 multi‑country plans that include Japan as part of a broader network. The catalogue contains both fixed data cap plans and daily data cap plans. Fixed data cap plans provide a set amount of data that remains usable for the entire validity period, while daily data cap plans limit the amount of data that can be used each day but keep the same overall validity window. Prices for all Japan‑related plans range from roughly $4.50 to $109.99, and data amounts span from 1 GB up to 50 GB.