Yesim eSIM Data Plans for Japan

Yesim offers unlimited‑data eSIM plans for Japan. The plans range in price from $8.21 for a 1‑day pass to $233.28 for an 80‑day pass, and validity periods span from 1 day up to 80 days. All unlimited plans use Yesim’s 5G network in Japan, and while the data allowance is unlimited, speeds may be throttled after heavy usage, as is common in most unlimited packages.

If a customer wants to avoid unexpected speed reductions, it is advisable to contact Yesim directly to confirm whether a Fair Usage Policy applies and to clarify the typical amount of data that can be used at normal speed before any throttling begins.

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 publishes seven single‑country data plans that cover Japan, and 24 multi‑country plans that include Japan as part of their coverage. The price spectrum for these plans ranges from about $8.21 to $233.28, while the data allowances vary from 5 GB to unlimited. Validity periods span from one day up to a full year. Some plans permit tethering, and speed throttling may apply after the allocated data cap or during peak usage periods.