*20% OFF for 1 eSIM. Coupon will be applied at checkout!
Free Pocket WiFi Backup Guarantee
1.6M+ travelers served since 2012
| 4.5/5 from 1,378 reviews
Mark D “Excellent service at a reasonable rate.”
Eugene Suh “I rented a car and traveled from Tokyo to the mountains of Nagano, down to Osaka and through Shizuoka and back to Tokyo. During my travel in Japan I had my GPS on the whole time and I never lost cellular signal. I am very pleased with Japan wireless and I would highly recommend”
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)
