Japan & South Korea eSIM — reviews & details
Japan & South Korea 10GB/Day · 10 GB/day · 1 days
620 reviews
Coverage & networks
- Japan KDDI/au 5G
- South Korea SKTelecom 5G LG Uplus 5G
Traveller reviews
Lucas P.
Brazil · Jun 2025
Solid overall, just wish there was a bit more data for the price. Data lasted the whole trip with room to spare.
Yuki
GotoeSIM Support
· 1 year ago Appreciate you sharing this, Lucas. Good to hear it did the job, and we're working to make it even better. Reach us anytime at esimtopup.io/support if we can help. — Yuki, eSIM TopUp Support
Fatima K.
France · Jun 2025
Decent speeds, though slower than I expected in a few spots.
David
GotoeSIM Support
· 1 year ago Thanks for the honest feedback, Fatima. Good to hear it did the job, and we're working to make it even better. Any questions, our team is at esimtopup.io/support. — David
Chloe B.
Turkey · May 2025
Decent speeds, though slower than I expected in a few spots. Topping up was straightforward when I needed more.
James
GotoeSIM Support
· 1 year ago Appreciate you sharing this, Chloe. We're constantly optimising speeds and coverage across Japan & South Korea. Any questions, our team is at esimtopup.io/support. — James, eSIM TopUp Support
Hana D.
Australia · Mar 2025
Install took me two tries but was fine after that. Customer support answered my question quickly.
Ingrid
GotoeSIM Support
· 1 year ago Appreciate you sharing this, Hana. Glad it mostly worked for you in Japan & South Korea — we're always improving our coverage. Any questions, our team is at esimtopup.io/support. — Ingrid
Anna R.
Japan · Feb 2025
Good coverage in the city, a bit patchy in remote areas. The QR code arrived instantly by email.
Grace
GotoeSIM Support
· 1 year ago Thank you for taking the time, Anna. Glad it mostly worked for you in Japan & South Korea — we're always improving our coverage. Any questions, our team is at esimtopup.io/support. — Grace
Min-jun W.
India · Jan 2025
Decent speeds, though slower than I expected in a few spots.
Sara
GotoeSIM Support
· 1 year ago Thank you for taking the time, Min-jun. Good to hear it did the job, and we're working to make it even better. Any questions, our team is at esimtopup.io/support. – Sara 💜
Budi T.
South Korea · Dec 2024
Solid overall, just wish there was a bit more data for the price.
David
GotoeSIM Support
· 1 year ago Thank you for taking the time, Budi. Glad it mostly worked for you in Japan & South Korea — we're always improving our coverage. Any questions, our team is at esimtopup.io/support. — David, eSIM TopUp Support
Kenji C.
South Korea · Nov 2024
Install took me two tries but was fine after that. Customer support answered my question quickly.
Priya
GotoeSIM Support
· 1 year ago Thank you for taking the time, Kenji. Glad it mostly worked for you in Japan & South Korea — we're always improving our coverage. Reach us anytime at esimtopup.io/support if we can help. – Priya, eSIM TopUp Support
Katya V.
Sweden · Nov 2024
Worked fine but took a little while to connect at first. Data lasted the whole trip with room to spare.
Mark
GotoeSIM Support
· 1 year ago Thanks for the honest feedback, Katya. Glad it mostly worked for you in Japan & South Korea — we're always improving our coverage. Reach us anytime at esimtopup.io/support if we can help. – Mark 💜
Camila W.
Netherlands · Sep 2024
Install took me two tries but was fine after that. Signal held up well on trains and in rural areas.
Tom
GotoeSIM Support
· 1 year ago Appreciate you sharing this, Camila. Good to hear it did the job, and we're working to make it even better. Any questions, our team is at esimtopup.io/support. — Tom, eSIM TopUp Support
Frequently asked questions
How much does the Japan & South Korea eSIM cost?
The Japan & South Korea 10GB/Day plan costs $14.18 for 10 GB/day over 1 days, paid once with no hidden fees.
How do I activate my Japan & South Korea eSIM?
Scan the QR code in your phone settings (Cellular/Mobile → Add eSIM) or tap Install in the eSIM TopUp app. Install on Wi-Fi before your trip; it activates when you arrive in Japan & South Korea.
Will this eSIM work on my phone?
It works on any eSIM-compatible, carrier-unlocked phone — iPhone XS and newer, Google Pixel 3 and newer, and recent Samsung Galaxy models.
Can I keep my regular number?
Yes. The eSIM runs alongside your normal SIM, so you keep your number for calls and texts while using data in Japan & South Korea.
Comments & questions
Sven N. · 4 weeks ago
Which networks does this connect to?
Ryan W. · 2 months ago
Does the validity start on purchase or on first use?
Fatima G. · 3 months ago
Can I use this for hotspot/tethering?
James C. · 4 months ago
Do I need to install it before I travel or after I arrive?
Ji-woo H. · 6 months ago
Is 5G supported or just 4G?
Sven S. · 6 months ago
How long does the QR code take to arrive after payment?
Zoe G. · 7 months ago
Is roaming charged extra or is it all included?
Lea F. · 7 months ago
How do I check how much data I have left?
Omar P. · 9 months ago
Can I use it in nearby countries too?
Thomas M. · 10 months ago
Does this work on an iPhone 13?
Pablo B. · 1 year ago
Great guide, the setup steps were really helpful.
Mohammed N. · 1 year ago
Thanks, installed with no problems on my Samsung.