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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.
Japan Packing List 2026: Complete Suitcase Checklist
TL;DR: For a 1 to 3-week trip to Japan, plan a carry-on or medium suitcase (50 to 65 L max) plus a 20-30 L backpack. The essentials: passport valid 6+ months...
Best Season to Visit Japan in 2026: Complete Travel Guide
TL;DR: The best seasons to travel to Japan are spring (late March to mid-May) for sakura cherry blossoms and autumn (mid-October to late November) for koyo f...
eSIM Japan validity and expiration: complete 2026 guide
TL;DR: A PlanJapan Japan eSIM has two distinct timelines â the installation window (up to 30 days after purchase to scan the QR code) and the plan duration (...
No signal Japan eSIM: 10 causes and fixes for 2026
TL;DR: "No signal" with your Japan eSIM almost always comes from one of 10 specific causes â and 8 of them resolve in under 3 minutes without contacting supp...
eSIM Japan on a locked phone: what to do in 2026
TL;DR: A carrier-locked phone will refuse any third-party eSIM, including PlanJapan. Locking is still common in the US (Verizon, AT&T, T-Mobile Prepaid),...
eSIM Japan on Apple Watch: setup & compatibility 2026
TL;DR: Your Apple Watch cannot host a travel eSIM in Japan directly. No Airalo, Holafly or PlanJapan plan installs on an Apple Watch Series 3 to Ultra 2 â Ap...
Best Unlimited eSIM Japan 2026: Real Comparison
TL;DR: the best unlimited eSIM for Japan in 2026 is PlanJapan Unlimited, combining NTT Docomo + Rakuten Mobile coverage, a real no-throttling unlimited plan,...
eSIM Japan 20 GB: 4 Best Plans Compared in 2026
TL;DR: a 20 GB eSIM Japan plan comfortably covers 14 days for a connected traveler using Google Maps, Suica, translation apps and light streaming, as long as...
eSIM Japan vs AT&T, Verizon, T-Mobile US Roaming 2026
TL;DR â In Japan, AT&T International Day Pass and Verizon TravelPass charge $12/day to use your US plan on partner networks SoftBank or KDDI â that's $16...
PlanJapan vs Airalo 2026: Which One for Japan?
TL;DR â The PlanJapan vs Airalo matchup pits a French Japan-only eSIM provider against a global eSIM marketplace covering 200+ destinations. PlanJapan runs e...
Jetpac Japan Review 2026: Is the low-cost eSIM worth it?
TL;DR â Jetpac is a Singapore-based low-cost eSIM reseller, founded in 2022, that grew its name through TikTok and travel influencers. For Japan, Jetpac sell...
NTT Docomo, KDDI, SoftBank, Rakuten: Japanese Mobile Operators Compared
TL;DR â Four national operators dominate Japan's mobile market in 2026: NTT Docomo (84 million subscribers, the rural leader with 99.9% 4G coverage), KDDI / ...