Japan Travel eSIM – Fast 5G Data Plans

Absolutely! Our eSIM works perfectly on all Shinkansen lines including Tokaido, Sanyo, and Hokuriku. Many users report seamless connectivity even in tunnels.

Our eSIM connects to Japan's three major carriers, giving you coverage in 99%+ of the country including rural areas, mountains, and remote islands. Some very remote mountain areas may have reduced speeds.

We recommend installing (not activating) your eSIM before departure while you have WiFi. It will automatically activate when you land in Japan and turn on data roaming. You have 180 days from purchase to activate.

Yes! All apps work normally including Google Maps, Google Translate, Uber, Grab, Japanese apps like LINE, Tabelog, and all social media platforms.

This is a data-only eSIM, so you won't receive a Japanese phone number. However, you can make "calls" through WhatsApp, LINE, Skype, FaceTime, and other internet-based services.

Simply log into your Roamzi account and purchase a top-up. It's added to your existing eSIM instantly - no reinstallation required. You'll also receive a notification when you reach 80% usage.

The plan validity period starts when you first activate in Japan and runs for the duration shown (7, 15, or 30 days). After it expires, you'll need to purchase a new plan. However, you can install the eSIM up to 180 days before your trip.