eSIM Cards eSIM Data Plans for Japan

No eSIM Cards offers an unlimited data eSIM plan for Japan. The provider’s catalog for Japan contains only fixed‑data plans, such as the Japan 300GB Travel Plan for 15 days and the Japan 50GB Travel Plan for 30 days, along with smaller bundles like the Japan 20GB Travel Plan for 30 days. Each plan specifies a hard data cap and a validity period, so the data must be used within the stated number of days.

For travelers who need more data than a standard bundle but do not require unlimited usage, these fixed‑data plans can be more cost‑effective. They allow tethering and operate on 5G (and 4G LTE where available) on the KDDI network in Japan. If a user anticipates extremely heavy data consumption, a pay‑as‑you‑go plan could be considered, but no unlimited option is listed.

eSIM Cards does not provide a Japan eSIM that includes a phone number or SMS capability. The provider’s offerings for Japan are limited to data‑only plans.

Travelers can still use popular VoIP services such as WhatsApp, Telegram, and iMessage over the data connection, but those apps must be verified for availability in Japan before purchasing.

eSIM Cards offers 8 single‑country plans and 2 multi‑country plans for Japan, a total of 10 data packages. Prices run from about $3.93 to $69.09 USD, while data caps vary between 3 GB and 300 GB. Validity periods range from five to thirty days, and several plans include tethering permission.