ESIM.DOG 🐶 eSIM Data Plans for Japan

ESIM.DOG does not provide a true unlimited data eSIM for Japan; none of its plans list the data cap as “unlimited.” The only plan with an “Unlimited” label in its title is a 5G SoftBank Japan package that gives 500 MB of high‑speed data, after which the speed drops to 384 kbps. If you need more data, ESIM.DOG offers fixed data plans, such as the 50 GB/30 day or 50 GB/3–4 day packages for Japan, and a larger 100 GB plan that covers Japan and 17 other Asian countries for 180 days. While a fixed‑data plan may be more economical for typical travelers, it can be less convenient for very heavy users.

ESIM.DOG 🐶 does not provide a Japan eSIM plan that includes a phone number or SMS functionality. The provider offers only data‑only eSIMs for travelers visiting Japan.

Travelers who need to make voice calls or send text messages can use popular VoIP applications such as WhatsApp, Telegram, or iMessage over the data connection that ESIM.DOG supplies. These apps allow voice and messaging without requiring a local phone number or SMS support.

ESIM.DOG offers 105 single‑country plans and 353 multi‑country plans that include Japan. Across the catalogue the prices range from about $1.69 to $226.49, while the data caps vary from 500 MB up to 100 GB and validity periods span from one day to a full year. The single‑country options provide a fixed data allocation for use only in Japan, whereas the multi‑country plans let users roam between Japan and other destinations within the same data package.