abesteSIM eSIM Data Plans for Japan

abesteSIM does offer unlimited data eSIM plans for Japan. The company provides a range of unlimited options with validity periods from 1 day up to 30 days, priced roughly between $2.06 USD for a single‑day plan and about $54.70 USD for a 30‑day plan. Each plan allows tethering and is delivered over 5G, with a maximum advertised speed of 10 000 kbps; speeds may be reduced after heavy usage in accordance with Fair Usage Policy.

If you are planning to keep the data at normal speed for an extended period or want to confirm the details of the throttling thresholds and any additional fine‑print that applies, it is advisable to contact abesteSIM directly before purchase.

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 lists 148 single‑country data plans and 365 multi‑country data plans that include Japan. The available plans range in price from $0.41 to $109.96 and in data cap from 500 MB up to unlimited. Single‑country options are typically fixed‑data amounts, while multi‑country plans frequently use daily data caps, letting users select the model that better fits their usage. This wide range of prices and data capacities provides travelers with multiple options to stay connected while visiting Japan.