Ovosim eSIM Data Plans for Japan

Ovosim does not provide a truly unlimited high‑speed data plan for Japan. The plans that contain “Unlimited” in their name actually grant a fixed amount of high‑speed data—such as 2GB, 3GB, or 5GB per day for a set validity—and the speed is throttled once that daily allocation is reached. Travelers who need a larger, predictable data allowance may choose one of Ovosim’s fixed‑data eSIMs, for example the Japan 50GB 30Days plan costing $46.13 USD or the Japan 20GB 30Days plan priced at $25.37 USD. These fixed plans offer a larger total data pool and can be more cost‑effective, especially for travelers who expect higher data usage during their stay.

Ovosim does not offer a Japan eSIM that includes a local phone number or the ability to send or receive SMS. The provider sells only data‑only plans for Japan. Travelers can still use messaging and calling services such as WhatsApp, Telegram, or iMessage over the data connection.

Ovosim provides 92 distinct data plans that cover Japan. These comprise 40 single‑country plans and 52 multi‑country plans that include Japan as part of a broader coverage bundle. Plan prices range from $3.45 to $115.34 and data caps span from 1 GB to 51 GB over validity periods of 5 to 180 days. Some packages use a fixed data amount, while others apply a daily data cap, giving customers flexibility depending on their usage preferences.