Yesim eSIM Data Plans for Japan

Yesim sells unlimited data eSIM plans that cover Japan, all powered on 5G networks.
The plans range from a single day for $4.27 USD to an 80‑day pass for $229.55 USD, with intermediate options such as 7‑day, 15‑day, 30‑day, and 10‑day day passes that start at $24.22 USD or $51.91 USD.

All unlimited plans carry a fair‑usage policy: speeds are normally at 5G rates but may be throttled if heavy use exceeds the provider’s threshold. Travelers concerned about speed reductions should confirm the exact FUP limits with Yesim.

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 offers 9 single‑country data plans that cover Japan and an additional 25 multi‑country plans that include Japan. The plans vary in validity from 1 to 365 days and in data from 1 GB up to unlimited, with prices ranging roughly from $4.30 to $231.01. Some of the offerings are fixed data bundles, while others impose a daily data cap; the overall price and data ranges are similar across both types.