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Your complete resource for staying connected in Japan. Guides, comparisons, and tips to help you choose the right eSIM and enjoy seamless connectivity throughout your trip.
Internet in Japan: The Complete Guide to Staying Connected (2026)
TL;DR To get internet in Japan in 2026, the simplest and most reliable solution for the vast majority of travelers is the eSIM: instant activation by QR code...
Dual SIM in Japan: Use Your eSIM and SIM at the Same Time
TL;DR With dual SIM, you keep your home SIM card for calls and texts while using a PlanJapan eSIM for data in Japan. Setup takes 2 minutes: just assign the d...
Data-Only eSIM: Do I Keep My Phone Number? (2026)
TL;DR Yes, you keep your phone number. The PlanJapan eSIM is data only: it provides internet connectivity in Japan only (NTT Docomo network). Your primary SI...
Free WiFi in Japan: Where to Find It & Why It's Not Enough
TL;DR Free WiFi exists in Japan â in train stations, konbini, hotels and some cafes â but it's slow, unstable, often limited to 15-30 minutes and rarely avai...
eSIM Japan: Common Problems and How to Fix Them
TL;DR Most eSIM problems in Japan can be fixed in under 2 minutes. The most common causes: data roaming isn't enabled, the eSIM isn't selected for cellular d...
Preparing Your Japan Connection: Complete Checklist Before Departure
TL;DR Preparing your internet connection before traveling to Japan takes 4 steps spread over one week: check your phone's compatibility and order an eSIM (D-...
Japan eSIM at Narita and Haneda: Get Connected the Moment You Land
If you've installed a PlanJapan eSIM before departure, you'll be connected to the Japanese network (NTT Docomo or SoftBank) the moment your plane lands at Na...
Japan eSIM: When to Activate? Before or After Landing?
You can install your PlanJapan eSIM from home before you leave, but don’t activate it until you land. Your data plan starts the moment your phone conne...
How to Activate a Japan eSIM on iPhone â Step-by-Step Guide 2026
TL;DR Activating a Japan eSIM on iPhone takes less than 5 minutes. Go to Settings > Cellular > Add eSIM, scan the QR code from your PlanJapan confirmat...
How to Use an eSIM in Japan with PlanJapan: Full 2026 Guide
The Planjapan eSIM is the easiest way to stay connected in Japan. In just a few clicks, you'll receive a QR code by email and activate your internet connecti...