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
Chloe W.
Mexico · Dec 2025
Exactly what I needed for travelling. Data lasted the whole trip with room to spare. Will use eSIM TopUp for my next trip for sure.
Tom
GotoeSIM Support
· 8 months ago Really appreciate this, Chloe! Great to know the setup was quick and easy. Wishing you many more connected adventures! – Tom, eSIM TopUp Support
Daniel V.
Portugal · Dec 2025
Bought it the night before my flight — smooth process in Japan & South Korea. I kept my normal number for calls while using this for data. Zero regrets.
Grace
GotoeSIM Support
· 8 months ago Thanks a lot, Daniel! Delighted the speeds worked well for you. Come back anytime! — Grace
Min-jun V.
Brazil · Dec 2025
Super easy to set up before I flew out. I kept my normal number for calls while using this for data. Telling my friends about this.
Diego
GotoeSIM Support
· 8 months ago Thanks a lot, Min-jun! Great to know the setup was quick and easy. Safe travels, and see you on your next trip! — Diego, eSIM TopUp Support
Linh D.
Egypt · Dec 2025
Good coverage in the city, a bit patchy in remote areas.
Priya
GotoeSIM Support
· 8 months ago Apologies for the trouble, Linh. That's not the experience we want for Japan & South Korea. Please contact us at esimtopup.io/support and we'll sort it out. — Priya, eSIM TopUp Support
Emma K.
Australia · Dec 2025
Did the job without any drama. The QR code arrived instantly by email.
Diego
GotoeSIM Support
· 8 months ago Thanks for sharing, Emma! Delighted the speeds worked well for you. Wishing you many more connected adventures! — Diego, eSIM TopUp Support
Thomas K.
Brazil · Dec 2025
First time using an eSIM and it was painless. Streaming and video calls worked without buffering. Made staying connected effortless.
Ken
GotoeSIM Support
· 8 months ago Thank you for the kind words, Thomas! Delighted the speeds worked well for you. Enjoy your journeys! — Ken, eSIM TopUp Support
Hana B.
South Korea · Dec 2025
Super easy to set up before I flew out. Activation was automatic when I arrived. Would definitely buy again.
Sophie
GotoeSIM Support
· 8 months ago Thank you for the kind words, Hana! Thrilled it made staying connected effortless. Come back anytime! – Sophie, eSIM TopUp Support
Nadia S.
Germany · Dec 2025
Honestly better than buying a local SIM at the airport. Activation was automatic when I arrived. Telling my friends about this.
Sara
GotoeSIM Support
· 8 months ago Thank you for the kind words, Nadia! Delighted the speeds worked well for you. – Sara 💜
Camila M.
Switzerland · Nov 2025
Super easy to set up before I flew out. Coverage was strong even outside the city.
Grace
GotoeSIM Support
· 8 months ago Really appreciate this, Camila! Wonderful to hear it worked smoothly in Japan & South Korea. – Grace 💜
Budi R.
Portugal · Nov 2025
Worked fine but took a little while to connect at first.
Ingrid
GotoeSIM Support
· 8 months ago Appreciate you sharing this, Budi. 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. – Ingrid 💜
Fatima B.
Sweden · Nov 2025
Bought it the night before my flight — smooth process in Japan & South Korea. Coverage was strong even outside the city. Made staying connected effortless.
David
GotoeSIM Support
· 8 months ago Thanks for sharing, Fatima! Delighted the speeds worked well for you. We're here whenever you travel again. – David 💜
Anna H.
Saudi Arabia · Nov 2025
Solid overall, just wish there was a bit more data for the price.
David
GotoeSIM Support
· 8 months ago Thanks for the honest feedback, Anna. We're constantly optimising speeds and coverage across Japan & South Korea. Reach us anytime at esimtopup.io/support if we can help. — David, eSIM TopUp Support
Hana P.
UAE · Nov 2025
First time using an eSIM and it was painless in Japan & South Korea. Topping up was straightforward when I needed more.
Mark
GotoeSIM Support
· 8 months ago Thank you so much, Hana! Love that you were online the moment you landed in Japan & South Korea. Come back anytime! — Mark, eSIM TopUp Support
Hugo P.
Egypt · Nov 2025
Super easy to set up before I flew out in Japan & South Korea. The QR code arrived instantly by email.
David
GotoeSIM Support
· 8 months ago Cheers, Hugo! So pleased it saved you from roaming bills. – David, eSIM TopUp Support
Marco R.
Australia · Nov 2025
Exactly what I needed for travelling. Data lasted the whole trip with room to spare. Great experience overall.
David
GotoeSIM Support
· 8 months ago Thank you for the kind words, Marco! Great to know the setup was quick and easy. – David 💜
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. · 5 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. · 7 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. · 10 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.