thirr.com eSIM Data Plans for Japan

thirr.com does not provide an unlimited data eSIM plan for Japan. Its plans for Japan all have fixed data caps. For example, the JP 100GB 31D plan offers 100GB of high‑speed data for 31 days and costs $70.54 USD, while the JP 50GB 30D plan gives 50GB for 30 days at $17.63 USD. thirr.com also sells a 100GB 31‑day plan at $73.95 USD that covers Japan and 121 additional countries.

Choosing a fixed data plan can be more cost‑effective than an unlimited plan unless the user is an extremely heavy data consumer. The large data allowances available from thirr.com allow travelers to stay connected throughout their stay in Japan without the need for an unlimited option.

Thirr.com does not provide an eSIM that includes a phone number or SMS capability for Japan. All plans for Japan from thirr.com are data‑only; travelers who need voice or text can rely on internet‑based services such as WhatsApp, Telegram, or iMessage over the data connection.

thirr.com offers six single‑country plans and eighteen multi‑country plans for Japan. The plans span a price range from $2.10 to $346.04, with data caps between 1 GB and 100 GB, and validity periods from 3 to 365 days. Some plans also allow tethering.