Ovosim eSIM Data Plans for Japan

Ovosim does not provide truly unlimited high‑speed data eSIMs for Japan. All plans listed are capped, either with a daily data quota or a fixed total data allowance. For example, the Japan Unlimited MAX plan gives 5GB/day for 15 days, and the Japan 50GB 30Days plan offers a total of 51GB over a month. These fixed‑data options supply large amounts of data but are not unlimited; after the quota is reached, speed may be reduced or a new plan may be needed. Travelers who need very high data volumes can choose one of the larger fixed plans, which are often more cost‑effective than attempting to use separate “unlimited” offerings.

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.