Internet & SIM(8 guides)

Will My Charger Work in Japan? Outlets, Plugs, and Voltage

Whether you need a plug adapter or voltage converter for Japan: the Type A outlet, 100V power, and how to read your device's voltage rating.

Updated: 2026-06-13

eSIM for Japan: Setup Guide and Common Pitfalls

How to choose and set up an eSIM for Japan, compared with physical SIM and pocket Wi-Fi, plus common pitfalls.

Updated: 2026-06-13

eSIM Not Working in Japan: Diagnostic Checklist

A step-by-step checklist to fix a Japan eSIM that will not connect: roaming, data line, APN, and network selection.

Updated: 2026-06-13

Free WiFi in Japan: Where It Actually Works

Where to find free WiFi in Japan as a tourist: convenience stores, stations, cafes, and city networks, plus the limits and how to connect safely.

Updated: 2026-06-13

Google Maps in Japan: Transit Quirks to Know

Why Google Maps confuses tourists in Japan: reading transit routes, station exit numbers, transfer walks, and the gate traps that cost you time.

Updated: 2026-06-13

Translation Apps for Japan (Including Offline Use)

The best way to translate Japanese on your trip — camera, voice, and offline translation — and how to download languages before you go.

Updated: 2026-06-13

Pocket WiFi vs eSIM for Japan: Which Fits Your Trip?

Pocket WiFi or eSIM for your Japan trip? Compare cost, number of devices, battery, and setup so you can pick the right data option.

Updated: 2026-06-13

Roaming vs eSIM for Japan: Which Is Cheaper?

Whether to turn on international roaming or buy an eSIM for your Japan trip, compared by trip length and data use, with a decision flow.

Updated: 2026-06-13