Yesim eSIM Data Plans for Japan

Yesim provides unlimited data eSIM plans that cover Japan, with validity options ranging from 1 day to 30 days. The 5G plans start at $4.30 USD for a 1‑day pass and go up to $52.24 USD for a 30‑day pass. All unlimited packages allow tethering, but the description notes that speeds may be throttled and a Fair Usage Policy may be applied after heavy usage. If a traveler wishes to confirm the extent of the fair‑usage limits or the typical amount of data that remains at normal speed, it is advisable to 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 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.