Ovosim eSIM Data Plans for Japan

Ovosim does not currently provide truly unlimited high‑speed data plans for Japan. All of its Japan‑only offerings have a specified data cap, such as the Japan Unlimited MAX - 30 Days plan, which offers 150GB of high‑speed data for 31 days, or the Japan Unlimited MAX - 10 Days plan, which supplies 50GB for 11 days.

These capped plans are generally more cost‑effective for most travelers, especially if they are not extremely heavy data users. If a user needs a larger data allowance, they can choose a plan with a higher cap; the dataset shows that 150GB is the maximum available for Japan.

Ovosim does not provide a Japan eSIM that includes a local phone number or SMS capability. All Japan plans sold by Ovosim are data‑only; travelers cannot make or receive traditional voice calls or text messages through the provider’s network. However, users can still communicate through internet‑based services such as WhatsApp, Telegram, or iMessage, which work over the data connection.

Ovosim is listed as offering 32 single‑country data plans and 52 multi‑country data plans in the dataset. The single‑country group includes plans that cover Japan exclusively, while the multi‑country group includes packages that provide coverage in Japan alongside other destinations. Prices for these plans range from about $5.18 to $115.19, with data allowances between 1 GB and 150 GB and validities from 6 to 31 days. The catalog includes both fixed‑data‑amount plans that give a set amount of data for the validity period and daily‑cap plans that limit data usage on a daily basis, allowing travelers to choose according to their usage patterns.