Giga.Tel eSIM Data Plans for Japan

Giga.Tel does not offer a true unlimited high‑speed data eSIM for Japan. The provider’s Japanese plans are fixed‑data bundles, such as the 50GB plan for 30 days priced at $30.99 USD and the 30GB plan for 30 days priced at $20.99 USD. Plans that carry “Unlimited” in their names—including Asia 8 countries 1 days and Global 1 days—are capped at 2 GB and, after the limit is reached, the speed is throttled to 512 kbps. For travelers who require large amounts of data, a fixed‑data plan is generally more cost‑effective than a plan that is limited and then slowed.

Giga.Tel does not provide eSIM plans for Japan that include a phone number or SMS capabilities. The available plans are strictly data‑only, meaning users can access the internet but cannot receive inbound calls or SMS messages on a local Japanese number. Travelers can still use data‑based VoIP applications such as WhatsApp, Telegram, and iMessage for voice calls and messaging without relying on a local phone number or SMS service, but no native telephony or SMS feature is offered by Giga.Tel for Japan.

Giga.Tel offers 15 single‑country plans that cover Japan only and an additional 13 multi‑country plans that include Japan in their coverage. The available plans range in price from about $4.99 to $195.99, with data caps that span from roughly 1 GB to 50 GB. Within the catalog Giga.Tel offers both fixed‑data packages and daily data‑cap options—the fixed‑data model provides a set amount of data for the entire validity period, while the daily cap limits the amount of data you can use each day, allowing more flexible short‑term usage.