Choose for your trip
eSIM or physical SIM
Check exact-model compatibility, carrier lock, installation instructions and when validity starts. Read data allowance, hotspot and voice/SMS conditions.
Shared pocket Wi-Fi
Check pickup and return hours, charging and data rules. A shared device needs a plan for travelers who split up.
Home-carrier roaming
Ask your carrier about Japan coverage, activation and charges before travel. Avoid changing settings without understanding the charges.
Before you travel
Before landing
Keep your hotel address, arrival route and provider instructions offline. Check where help is available if activation fails.
Choose for your itinerary
Check provider coverage for islands or mountain areas rather than assuming the same service everywhere. Use our connectivity tool to shortlist a connection type.
Official sources and current conditions
Reviewed 21 October 2026. Comparisons are JapaLens editorial guidance. Confirm current availability, fees and conditions with each provider.