Strong eSIM eSIM Data Plans for Japan

Strong eSIM does not offer an unlimited data eSIM for Japan. All available plans list a specific data cap, with the largest offering 50 GB over 30 days or 180 days. Travelers can choose a fixed data plan such as the Japan 50GB 30Days or the Japan 50GB 180Days plans, which come with tethering allowance and 4 G or 5 G connectivity. Selecting a fixed data plan can be more cost‑effective unless a user requires very high data consumption beyond the provided caps.

Strong eSIM does not offer any Japan eSIM plans that include a local phone number or SMS capability. The provider currently sells only data‑only eSIMs for Japan. Travelers can still use popular VoIP applications such as WhatsApp, Telegram, and iMessage over the data connection for voice and messaging without needing a traditional phone number.

Strong eSIM provides 25 single‑country data plans that cover Japan, and it also offers 50 multi‑country plans that include Japan among their destinations. The single‑country plans typically give a fixed data amount that ranges from 100 MB up to 10 GB, with prices between approximately $1.90 and $99.90 USD. The multi‑country plans are broader, offering data caps from 500 MB to 50 GB, with prices spanning roughly $9.90 to $224.90 USD. Some of both types of plans allow tethering, giving travelers flexibility to share data across devices.