GigSky eSIM Data Plans for Japan

GigSky does not provide an unlimited data eSIM plan for Japan. All available plans list a specific data cap, with the largest option offering 100GB of data for 180 days. Travelers who need a higher data allowance can choose one of GigSky’s fixed‑data plans, such as the 50GB or 20GB options that also cover Japan and a large number of other countries. While these plans are not unlimited, they can be more cost‑effective for most users unless the traveler is an extremely heavy data consumer.

GigSky does not provide a phone number or SMS capability for its Japan eSIM plans. The provider offers only data‑only options in this country, so travelers cannot receive or send SMS or make voice calls that use a local phone number. However, they can still use VoIP applications such as WhatsApp, Telegram, and iMessage over the data connection to communicate.

GigSky offers a total of 12 plans that cover only Japan and 38 plans that cover Japan plus other countries.
The single‑country plans are usually sold as flat‑rate data packages, while the multi‑country plans come in two styles: a daily data cap that resets each day and a fixed data cap that lasts the full validity period.

Across these plans the prices range from free to about $332.49, the data caps vary from 100 MB to 100 GB, and validity periods span from a single day to 180 days.