Yesim eSIM Data Plans for Japan

Yesim provides unlimited‑data eSIM plans for Japan with validity periods ranging from 1 day to 30 days. Prices start at $8.21 USD for a 1‑day plan and go up to $64.50 USD for a 30‑day plan, all delivered over 5G networks and allowing tethering.

Because these plans are marked “unlimited” with a Fair Usage Policy, speeds may be throttled after heavy use. Travelers who need confirmation of how long normal speeds are maintained, or the typical data amount before throttling, should contact Yesim directly.

Yesim does not offer a Japan eSIM plan that includes a phone number or SMS capability. Travelers can purchase data-only plans for use with VoIP applications such as WhatsApp, Telegram, or iMessage, which provide voice calling and messaging over the internet.

Yesim provides eight individual plans that cover only Japan and 24 broader itineraries that include Japan. The single‑country plans start at about $8.08 USD for a 5 GB or less allocation and can rise to roughly $229.66 USD for a 365‑day unlimited package. The multi‑country bundles offer similar price and data ranges, with travelers able to choose either a daily data cap or a fixed data amount depending on the itinerary selected.