eSimfly eSIM Data Plans for Japan

eSimfly does not provide a truly unlimited data eSIM for Japan; all of its available plans have a fixed data allowance. Some plans use the word “Unlimited” in their name, such as the Asia Unlimited series, but they actually give 3 GB per day and include a reduced‑speed tier that applies once that daily limit is reached. In addition to these daily‑cap plans, eSimfly offers fixed‑amount packages for Japan, for example Asia 100 GB for 180 days, Japan 50 GB for 30 days, Japan 30 GB for 10 days, and Japan 21 GB for 7 days. Choosing a fixed data plan can be more cost‑effective for travelers unless they expect to consume data well beyond the set limit.

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 15 single‑country data plans for Japan and 29 multi‑country plans that include Japan in their coverage. The plans span a price range from about $1.20 to $90.60 and offer data limits from 1 GB up to 100 GB, with validity periods between 1 and 365 days. Of the available packages, 6 are structured with a daily data cap while 38 offer a fixed data amount; some of these plans also allow tethering.