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Japan & Korea eSIM – 15 Day 20GB (5G/4G) High-Speed Data Prepaid Card. Unlimited 128kbps After Cap, Hotspot Support, Same-Day Online Delivery Support. (15 Days 20GB)

Free shipping on orders over $29.99

$26.99

$ 12 .99 $12.99

In Stock

1.Model:10 Days 5gb


About this item

  • ✅【For Immediate Use, Please Contact Us】 If you need to use the eSIM urgently after purchase, you can obtain it through one of the following methods: ① Contact us via Buyer Messages — we will send you the QR code and setup guide directly. ② Reach out to our official LINE customer service to get your eSIM. Official LINE ID: @billionconnect
  • ✅【Check eSIM Compatibility Before Purchase】 This service only works on eSIM-supported or SIM-unlocked devices. Dial *#06# and check if an EID number appears—if yes, your device supports eSIM.
  • ✅【15 Days 20GB , 4G Supported】 eSIM offers 20GB of high-speed data for 15days! After reaching the daily limit, speed will be reduced to 128kbps. You can still use text-based apps like LINE, WhatsApp, Messenger, check emails, and use maps/navigation.
  • ✅【SIM Card Coverage】 Applicable in 10 Asian countries including Japan, Korea, Singapore, Malaysia, Thailand, Vietnam, China, Hong Kong, Macau, and Taiwan.
  • ✅【English Customer Support】 We provide Japanese support via LINE (Official ID: @billionconnect). If you have any questions, feel free to contact us. Our support team will respond promptly.
  • ✅【eSIM Validity Period】 Please activate your eSIM within 90 days of receipt. If not activated at least one day before expiration, it will become invalid and cannot be used.



QR code image directly to your phone.
Go to “Mobile Data / Cellular Plans” (iOS) or “SIM Card Management” (Android) in your phone’s settings.
While connected to the internet, select “Add Mobile Data Plan / Add Cellular Plan” (iOS) or “Add SIM” (Android) and scan the QR code to install the eSIM.
If scanning fails, you can manually enter the SM-DP+ Address and Activation Code provided in your order confirmation.
If steps 3 or 4 fail, your phone may be network-locked by your carrier (i.e., it cannot connect to other carriers' networks). Please contact your carrier to unlock the device before using the eSIM.
[Using the eSIM]
Turn off your primary SIM card and enable the eSIM.
Activate “Mobile Data / Cellular Service” (iOS) or “SIM Card” (Android) for the eSIM.
If you still cannot connect to the internet, please set the APN manually and restart your device (see instructions below).
[About APN Settings]
For eSIMs covering multiple countries/regions: If you are unable to connect when entering a new area, try switching the APN manually (normally, this happens automatically).
How to set APN:
iOS: Settings → Cellular / Mobile Data → Cellular Data Network
Android: Settings → Network & Internet → Mobile Network → Access Point Names (APN) → Create or Edit APN
Enter the required APN information.
Restart your phone.


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