NovuSIM eSIM Data Plans for Japan

NovuSIM does not provide a truly unlimited data eSIM for Japan. All of the plans that carry “Unlimited” in their name are in fact fixed data plans with a specified high‑speed data allowance that ends once the cap is reached, after which the speed may be reduced.

Travelers who want a large amount of data can choose one of NovuSIM’s fixed‑data plans for Japan, such as the 70GB plan that is valid for 20 days or the 90GB plan that is valid for 30 days. These plans offer substantial high‑speed data before the cap is hit, and can be a more cost‑effective option unless the user is an extremely heavy data consumer.

NovuSIM does not provide eSIM plans for Japan that include a phone number or SMS capability; only data‑only plans are available. Travelers who need voice or text can use VoIP applications such as WhatsApp, Telegram, and iMessage over the data connection, but they should verify that these services are accessible in Japan before purchasing a plan.

NovuSIM offers 12 single‑country data plans that cover Japan, and 2 multi‑country plans that include Japan as part of a broader regional package. The available plans range in price from about $6 to $164 and in data allowance from 1 GB up to 90 GB, with validity periods between 3 and 30 days. Most of the plans are fixed‑data packages, meaning the data cap is set for the entire validity period rather than being limited on a daily basis.