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Free Pocket WiFi Backup Guarantee
1.6M+ travelers served since 2012|4.5/5 from 1,378 reviews
Jon M Young “While in Japan, one day we realized that we would not have internet connection. We have never used eSim before, but we needed something to get us through the day. Japan Wireless was an execellent choice. Easy to setup and it was reliable.”
Brian Murashige “Super easy to use and works well. Will continue to use Japan Wireless eSIM, since there are no issues and it always works!! Thank you for such a great product!!”
Oumaima Berrahha “Got 1days unlimited and it was so good! Used it all the time”
Best For: Heavy data users, hotspot usage, remote work, and long stays in Japan
Network: KDDI
Speed: 5G full speed
Coverage: Nationwide high-speed coverage across Japan
Data Usage & Hotspot Policy
Unlimited Data Usage: Designed for normal to heavy travel usage, including:
Navigation (Google Maps)
Social media
YouTube & video streaming
Video calls
Web browsing
To ensure stable network performance for all users, extremely heavy usage may be subject to temporary speed management under the Fair Usage Policy.
Hotspot (Tethering): Hotspot sharing is supported on all 5G Unlimited plans. Each plan includes a high-speed hotspot data allowance based on plan duration:
7 days
After the high-speed hotspot allowance is used, hotspot sharing remains available, but speeds may be reduced to maintain network stability.
Installation & Activation
Installation: QR code or manual setup
Delivery: Immediate after purchase
Activation: Automatically activates when you arrive in Japan and turn on data roaming
Calls, Compatibility & Notes
Calls: Available via apps only (LINE, WhatsApp, Skype, etc.)
SMS: Not supported
Compatibility: Compatible with all eSIM-enabled smartphones (Operation on tablets and smartwatches is not guaranteed)
eKYC: Not required
Refund: Non-refundable
7 days a week, english customer support center.
We want to ensure you have no issues on your trip in Japan. Our customer support will always be on standby.
If you have any issues with your eSIM, call our customer service to:
