Giga.Tel eSIM Data Plans for Japan

Giga.Tel does not provide a genuinely unlimited high‑speed data plan for Japan. The plans that carry the word “Unlimited” in their name actually limit high‑speed data to 2 GB in a 1‑day validity or 1 GB per day for 15 days, after which the speed is reduced to 512 kbps.

For travelers who want larger amounts of unthrottled data, Giga.Tel offers fixed‑data options such as the 50 GB plan valid for 30 days or the 60 GB plan valid for 90 days. These fixed plans can be more cost‑effective for heavy users unless a user only needs a very short burst of data.

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 19 single‑country plans and 25 multi‑country plans that include Japan. The available options run from $4.99 to $181.99 and cover data caps ranging from 500 MB up to 90 GB. Within these packages, 8 plans feature daily data caps while 36 provide fixed data amounts, giving travelers the choice between day‑by‑day limits and a single total data allotment for the validity period.