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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.
Mobile Internet in Japan in 2026: State of the Network
TL;DR â In 2026, Japan remains the best-connected G7 country: 99.9% of the territory covered in 4G by NTT Docomo, 5G now reaching over 96% of Tokyo's 23 ward...
How to get internet in Japan: 7 solutions compared
TL;DR â To get internet in Japan, you have 7 concrete options: a Japan eSIM (our recommendation, set up in 2 minutes via QR code, from $13 for 5 GB), a Pocke...
eSIM vs Physical SIM: Key Differences Explained 2026
TL;DR â An eSIM vs physical SIM comparison comes down to architecture: a physical SIM is a removable chip you slide into your phone's tray, while an eSIM is ...
What Is an eSIM? Complete Technical Guide for 2026
TL;DR: An eSIM (embedded SIM) is a digital SIM card built into your phone's hardware at the factory. Instead of inserting a tiny piece of plastic, you downlo...
eSIM Japan Refund: Conditions and Procedure (2026 Guide)
TL;DR: A Japan eSIM from PlanJapan is fully refundable if it has never been activated, within 14 days of purchase (under EU consumer-rights law). Once activa...
Japan eSIM Not Working: Complete Troubleshooting Guide (2026)
TL;DR: If your Japan eSIM is not working, the most common causes are: incompatible or carrier-locked phone, eSIM profile installed but not activated, incorre...
eSIM Japan 30 Days: Which Data Plan Should You Choose?
In short: For a 30-day trip to Japan, the 20 GB plan covers standard usage â daily Maps navigation, messaging, Instagram browsing, and a few WhatsApp video c...
Top 10 Best eSIMs for Japan in 2026: Full Comparison
TL;DR: Our 2026 ranking of the 10 best eSIMs for Japan compares providers on local network quality (NTT Docomo, SoftBank, KDDI), pricing transparency, activa...
Japan Unlimited Data eSIM: Complete Guide (2026)
A Japan unlimited eSIM gives you unrestricted 4G/5G connectivity across the entire country, with no data cap and no speed throttling. It runs on NTT Docomo's...
Japan eSIM for Golden Week: Connectivity Guide 2026
Golden Week (April 29 – May 5) is Japan’s busiest travel period of the year. Millions of Japanese nationals and international tourists converge o...
SFR, Orange, Bouygues au Japon : roaming ou eSIM ? (2026)
TL;DR Votre forfait français peut fonctionner au Japon, mais les conditions varient énormément d'un opérateur à l'autre. SFR/RED inclut le Japon dans son for...
Forfait Free Max au Japon : ca marche vraiment ? Test 2026
TL;DR Depuis le 31 mars 2026, Free Max propose la data illimitee dans 135+ destinations dont le Japon, pour 19,99 EUR/mois. Sur le papier, c'est seduisant. E...