eSimfly eSIM Data Plans for Japan

eSimfly does not provide a truly unlimited data eSIM for Japan. The plans listed as “Japan Unlimited” actually allow 1 GB per day; after that amount the speed is reduced (the specific throttled speed is not stated). If users need continuous high‑speed data without such restrictions, they can choose one of eSimfly’s fixed‑data plans. For example, a 50 GB plan valid for 30 days costs $19.89, and a 20 GB plan valid for 30 days costs $15.99. These fixed plans may offer a better value for travelers who require large amounts of data over their stay.

eSimfly does not provide a Japan eSIM plan that includes a phone number or SMS capability. The provider only offers data‑only eSIMs for Japan, so travelers cannot receive inbound SMS or make outbound voice calls through a local phone number. For messaging and voice communication, users can rely on internet‑based apps such as WhatsApp, Telegram, or iMessage, which operate over the data connection.

eSimfly provides 16 single‑country data plans that cover Japan only, and an additional 27 multi‑country plans that include Japan as one of the covered destinations. Across all of these options the price range is roughly $1.56 to $90.60, and the data caps span from 1 GB up to 100 GB. Some of the plans feature a daily data cap while others offer a fixed data amount for the entire validity period.