ViaConecta eSIM Data Plans for Japan

ViaConecta does not provide a truly unlimited data eSIM for Japan. The plans titled “Japan Unlimited” are limited to 1 GB/day for 7, 15, or 30 days, so the high‑speed data allowance is capped even though the name suggests otherwise.

Customers who need a larger amount of high‑speed data can choose fixed‑data plans instead. For example, the Japan 30 GB plan is valid for 30 days and the Japan 20 GB plan also spans 30 days. These plans offer more data without the daily limitation of the “Unlimited” name. Choosing a fixed‑data option can be more cost effective for travelers who anticipate heavy data use.

ViaConecta does not provide a Japan eSIM that includes a phone number or SMS capability.
Instead, the provider offers only data‑only eSIMs for travel in Japan. Travelers can use those data connections to access VoIP services such as WhatsApp, Telegram, or iMessage for voice calls and messaging.

ViaConecta offers 10 single‑country plans for Japan and 10 multi‑country plans that include Japanese coverage. The single‑country options range from $4.48 to $172.37 and provide data caps between 1 GB and 80 GB, while the multi‑country packages cover a similar price and data spectrum, allowing travelers to use the same plan across several countries, including Japan. Among the available plans, some feature a daily data cap structure (3 plans) and others provide a fixed data amount (17 plans). Many of the plans also permit tethering, giving users flexibility to share the connection with other devices.