ViaConecta eSIM Data Plans for Japan

ViaConecta does not provide a truly unlimited high‑speed data plan for Japan. The plans that carry the name “Japan Unlimited” actually allow only 1 GB of high‑speed data per day; once the daily quota is reached the speed is reduced. Therefore, no plan offers unrestricted data without limits.

For travelers who prefer a fixed data allowance, ViaConecta offers several options. For example, a 30 GB plan valid for 30 days costs $57.38 USD, while a 20 GB plan for the same period is $37.83 USD. These fixed data plans can be a more cost‑effective choice unless a traveler expects very 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.