Japan & South Korea eSIM — reviews & details
Japan & South Korea 10GB 30days · 10 GB · 30 days
620 reviews
Coverage & networks
- Japan KDDI/au 5G
- South Korea SKTelecom 5G LG Uplus 5G
Traveller reviews
Anna C.
UAE · Aug 2025
Good coverage in the city, a bit patchy in remote areas. Customer support answered my question quickly.
Yuki
GotoeSIM Support
· 11 months ago Thanks for the honest feedback, Anna. 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. – Yuki, eSIM TopUp Support
Haruto L.
Portugal · Aug 2025
Did the job without any drama in Japan & South Korea. Signal held up well on trains and in rural areas. A must-have for international travel.
Anna
GotoeSIM Support
· 11 months ago So glad to hear this, Haruto! Thrilled it made staying connected effortless. Safe travels, and see you on your next trip! – Anna 💜
Giulia V.
Poland · Aug 2025
Solid overall, just wish there was a bit more data for the price.
Sara
GotoeSIM Support
· 11 months ago Appreciate you sharing this, Giulia. 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. – Sara, eSIM TopUp Support
Linh V.
Switzerland · Aug 2025
Honestly better than buying a local SIM at the airport. Coverage was strong even outside the city.
Diego
GotoeSIM Support
· 11 months ago Thank you for the kind words, Linh! So happy the Japan & South Korea eSIM kept you connected. Wishing you many more connected adventures! – Diego, eSIM TopUp Support
Arjun D.
Spain · Aug 2025
No more hunting for a SIM card kiosk on arrival in Japan & South Korea. Ran hotspot to my laptop with no issues. Would definitely buy again.
Omar
GotoeSIM Support
· 11 months ago Thanks a lot, Arjun! Great to know the setup was quick and easy. Safe travels, and see you on your next trip! — Omar, eSIM TopUp Support
Fatima H.
UAE · Aug 2025
Super easy to set up before I flew out. I kept my normal number for calls while using this for data.
James
GotoeSIM Support
· 11 months ago Thanks for sharing, Fatima! So happy the Japan & South Korea eSIM kept you connected. Enjoy your journeys! – James, eSIM TopUp Support
Anna P.
Malaysia · Aug 2025
Used this on my trip and it worked perfectly. Ran hotspot to my laptop with no issues. Highly recommend for any traveller.
James
GotoeSIM Support
· 11 months ago Really appreciate this, Anna! Thrilled it made staying connected effortless. Enjoy your journeys! – James 💜
Kenji T.
Netherlands · Aug 2025
First time using an eSIM and it was painless. I kept my normal number for calls while using this for data. A must-have for international travel.
Ingrid
GotoeSIM Support
· 11 months ago So glad to hear this, Kenji! So pleased it saved you from roaming bills. – Ingrid 💜
Ingrid C.
Portugal · Aug 2025
No more hunting for a SIM card kiosk on arrival. Activation was automatic when I arrived in Japan & South Korea.
Sara
GotoeSIM Support
· 11 months ago So glad to hear this, Ingrid! Wonderful to hear it worked smoothly in Japan & South Korea. Wishing you many more connected adventures! — Sara
Grace S.
Brazil · Aug 2025
Decent speeds, though slower than I expected in a few spots.
Ingrid
GotoeSIM Support
· 11 months ago Appreciate you sharing this, Grace. 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, eSIM TopUp Support
Budi T.
Japan · Aug 2025
First time using an eSIM and it was painless. Streaming and video calls worked without buffering. Would definitely buy again.
Priya
GotoeSIM Support
· 11 months ago So glad to hear this, Budi! Delighted the speeds worked well for you. Come back anytime! – Priya 💜
Marco P.
United Kingdom · Aug 2025
Super easy to set up before I flew out. Customer support answered my question quickly.
Sara
GotoeSIM Support
· 1 year ago Thank you for the kind words, Marco! Love that you were online the moment you landed in Japan & South Korea. Safe travels, and see you on your next trip! — Sara, eSIM TopUp Support
Marco K.
France · Aug 2025
Connected the moment I landed. Coverage was strong even outside the city. Telling my friends about this.
Ingrid
GotoeSIM Support
· 1 year ago Really appreciate this, Marco! Love that you were online the moment you landed in Japan & South Korea. Enjoy your journeys! — Ingrid
Liam F.
Canada · Aug 2025
Connected the moment I landed. Streaming and video calls worked without buffering. Highly recommend for any traveller.
Laura
GotoeSIM Support
· 1 year ago Cheers, Liam! Thrilled it made staying connected effortless. Safe travels, and see you on your next trip! – Laura 💜
Isabella T.
Singapore · Aug 2025
Exactly what I needed for travelling. Topping up was straightforward when I needed more. Zero regrets.
Yuki
GotoeSIM Support
· 1 year ago So glad to hear this, Isabella! Love that you were online the moment you landed in Japan & South Korea. Wishing you many more connected adventures! – Yuki, eSIM TopUp Support
Frequently asked questions
How much does the Japan & South Korea eSIM cost?
The Japan & South Korea 10GB 30days plan costs $19.20 for 10 GB over 30 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
Lea T. · 4 weeks ago
Can I top up the same eSIM instead of buying a new one?
Mohammed H. · 1 month ago
How long does the QR code take to arrive after payment?
Ji-woo R. · 3 months ago
Is roaming charged extra or is it all included?
Budi C. · 3 months ago
Can I use this for hotspot/tethering?
Arjun S. · 4 months ago
Does the validity start on purchase or on first use?
Sven R. · 5 months ago
Which networks does this connect to?
Sarah D. · 7 months ago
Can I use it in nearby countries too?
Mei B. · 7 months ago
Thanks, installed with no problems on my Samsung.
Wei T. · 7 months ago
Is 5G supported or just 4G?
Wei D. · 9 months ago
How do I check how much data I have left?
Isabella H. · 9 months ago
Great guide, the setup steps were really helpful.
Fatima K. · 1 year ago
Does this work on an iPhone 13?