Roamic eSIM Data Plans for Japan

Roamic does not offer a true unlimited data eSIM for Japan. All of its so‑called “Unlimited” plans provide a fixed high‑speed allowance of 3 GB per day; after that limit is reached the speed is throttled, so the data are not unlimited.

Instead, Roamic sells fixed‑data options that may suit different usage levels. For example, travelers can choose a 50 GB plan valid for 180 days at $39.89 USD, a 20 GB plan for 30 days at $17.09 USD, or a 10 GB plan for 30 days at $10.25 USD. These plans offer predictable data limits and can be more cost‑effective if heavy data consumption is not required.

Roamic does not provide any eSIM plan for Japan that includes a phone number or SMS capability. Its Japan offerings are data‑only. Travelers can still use apps such as WhatsApp, Telegram, or iMessage over the data connection for calls and messaging.

Roamic offers 14 single‑country data plans that can be purchased for Japan, as well as 13 multi‑country plans that include Japan among their covered destinations. The plans span a price range from approximately $2.31 to $174.12 and a data cap range from 1 GB to 50 GB. In addition to fixed‑data‑cap options, Roamic provides daily‑data‑cap plans whose data allowance replenishes each day.