Yesim eSIM Data Plans for Japan

Yesim sells unlimited data eSIM plans for Japan, with validity periods ranging from 1 day up to 30 days. Prices start at $8.12 USD for a 1‑day plan and go up to $63.78 USD for a 30‑day plan. These unlimited plans include tethering, are marketed as unlimited, but note that the speed may be throttled after heavy usage; normal speed may be capped at the network’s maximum of 3G, 5G, or LTE. Because Yesim applies a Fair Usage Policy, speeds can be reduced once a data threshold is reached. Users who want to confirm the specific FUP limits and the typical amount of data available at normal speed should contact Yesim directly.

Yesim does not provide any eSIM plans that include a phone number or SMS for Japan. Only data‑only eSIM options are offered. Travelers can use internet‑based messaging and calling apps such as WhatsApp, Telegram, and iMessage over the data connection to communicate while in Japan.

The dataset does not give a country‑specific breakdown of Yesim’s plans, so it is not possible to state exactly how many Japanese‑coverage plans are available. For Yesim overall there are 8 single‑country plans and 20 multi‑country plans, with data amounts ranging from 5 GB to unlimited and prices between $8.12 and $126.39. The coverage of Japan would be a subset of these totals, but the specific count is not listed.