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 provide any eSIM plans for Japan that include a phone number or SMS capability. Their Japan offerings are limited to data‑only plans, meaning you will not receive a local phone number and cannot send or receive standard SMS messages. Travelers who need messaging or calling can use Internet‑based VoIP applications such as WhatsApp, Telegram, or iMessage, which work over the data connection provided by the eSIM.

Strong eSIM offers 24 single‑country data plans covering Japan and 50 multi‑country plans that include Japan in their roster. The plans range from a modest 100 MB data allotment to 50 GB, with prices from $1.90 to $224.90 depending on the data volume and validity period. Some plans feature a fixed data amount while others provide a daily data cap, and a number of plans allow tethering.