Open mobile app
NeoKOSIM09:00 AM — 6:00 PM all the year
Hello! Need help?
For quick assistance via Kakao Channel (Live Chat), tap here! 💁
- Ordering and payment are available in English, Korean, and Japanese.
- Language can be selected at the top right of the page.
- Plan Type: Data Only
- Pass Options: 3 ~ 10, 15, 20, 30-Day
- Data: True unlimited (No throttling)
- QR Code Delivery: Sent via email
- eKYC (Electronic Identity Verification): Not Required.
- Usage Extension: No Available
- Voice Chat: Supported
- Tethering/Hotspot: Available with specific data limits based on your plan.
- 3–10 Day Plans: Daily count minus 1GB (e.g., 7-Day = 6GB, 10-Day = 9GB).
- 15–30 Day Plans: 14GB (15-Day), 19GB (20-Day), and 30GB (30-Day).
- KDDI Network: 4G/5G – Maximum speeds
- Actual speeds may vary depending on your location within Japan and network conditions (4G/5G).
- Coverage: Coverage: Nationwide in Japan
① Global Credit Card (via PayPal)
- Visa, Mastercard, Discover, and American Express accepted
- For more details, click here!
② Direct Bank Transfer
- KRW bank transfer is available — click here!
- International wire transfers are also supported using the account details provided
③ Open Marketplace Purchase
- KRW payment is available via Naver Smart Store. — click here!
- 10% OFF on online orders only
- 09:00–20:00, available year-round
- Scan the QR code within 30 days of purchase.
- The QR code can be used on one device only.
- The Vietnam eSIM can be installed only once.
- Do not delete the eSIM after installation.
- If deleted, no replacement QR code will be issued.
- How to set up Japan eSIM on iOS phone, click here!
- How to set up Japan eSIM on Android phone, click here!
- How to set up manually Japan eSIM on iOS phone, click here!
- How to set up manually Japan eSIM on Android phone, click here!
- Check if my phone is Japan eSIM compatible, click here!
- How do I Check if my phone is unlocked?
- What is the refund policy for my eSIM?
Hello! Need help?
For quick assistance via Kakao Channel (Live Chat), tap here! 💁
