Cellesim eSIM Data Plans for Japan

Cellesim does not provide an unlimited data eSIM plan for Japan. The provider’s options for the country are fixed data plans, such as 50 GB for 30 days, 50 GB for 180 days, 20 GB for 30 days, 10 GB for 30 days, and 5 GB for 30 days. While these plans are not unlimited, they can be suitable depending on a traveler’s data needs; choosing a fixed data plan may be more cost effective unless one is an extremely heavy data consumer.

Cellesim does not offer any Japan eSIM plan that includes a phone number or SMS capability. All available plans are data only. Travelers who want voice or messaging in Japan can use VoIP applications such as WhatsApp, Telegram, or iMessage over the data connection, but they should verify that these services are accessible in Japan before purchasing the plan.

Cellesim offers 18 single‑country data plans for Japan. These plans are broken into two types: 10 daily‑data‑cap plans and 8 fixed‑data‑cap plans. The daily‑cap options allow a set amount of data per day, while the fixed‑cap options provide a total data allowance for the entire validity period. Prices for the plans range from about $1.40 to $165.00, and data caps span from 1 GB up to 50 GB. There are no multi‑country plans available for Japan.