Yesim eSIM Data Plans for Japan

Yesim offers several unlimited data eSIM plans specifically for Japan. The plans range in validity from 1 day to 30 days, with prices from $8.17 USD for a 1‑day plan up to $64.20 USD for a 30‑day plan. All of these plans allow tethering and are listed as unlimited data plans by Yesim.

Because the data cap is unlimited, Yesim applies a Fair Usage Policy that may throttle speeds after heavy usage. Normal speeds may be capped at the provider’s maximum speed, and speeds can be reduced if the policy thresholds are reached. Travelers who need to confirm the specific speed limits or potential throttling thresholds 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.

Yesim offers 8 single‑country data plans for Japan and 21 multi‑country plans that include Japan. The available plans span a price range from about $8.17 to $127.23 and a data cap range from 5GB up to Unlimited, with validity periods from 1 to 365 days. The single‑country options typically focus on a fixed data amount, while the multi‑country packages may feature a daily data cap and often allow tethering, though speed can be throttled.