abesteSIM eSIM Data Plans for Japan

Yes, abesteSIM sells unlimited data eSIM plans for Japan. Each plan has a data cap listed as Unlimited in the provider’s catalogue and is valid for a set number of days, ranging from 1 day to 30 days. Prices start at about $2.06 for a 1‑day plan and go up to roughly $58.85 for a 30‑day plan, with the same unlimited data provision and a maximum speed of 10000kbps.

Because these plans are labeled unlimited, the data volume itself is not restricted, but abesteSIM applies a Fair Usage Policy that may reduce speeds after heavy use. The plans advertise that speed may be throttled, and the listed maximum speed applies before any throttling occurs. Travelers who need to confirm the exact details of speed restrictions should contact abesteSIM directly.

abesteSIM does not provide a Japan eSIM that includes a phone number or SMS capability; it only offers data‑only plans for that country. Travelers who need to make voice calls or send text messages can generally use VoIP applications such as WhatsApp, Telegram, or iMessage over the data connection, but some destinations may block or restrict particular apps, so visitors should confirm that the services they rely on are accessible in Japan before purchasing.

abesteSIM provides 137 single‑country plans and 381 multi‑country plans that cover Japan.
The single‑country plans are limited to data use within Japan, whereas the multi‑country plans include Japan as part of a broader regional bundle that can be used across several Asian and Pacific destinations.

The available plans span a price range of roughly $0.41 to $124.86 USD and offer data caps from 500 MB up to unlimited, giving a wide variety of options for different usage needs.