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
Sri K.
Philippines · Jul 2026
Solid overall, just wish there was a bit more data for the price.
Tom
GotoeSIM Support
· 2 weeks ago Apologies for the trouble, Sri. This isn't the standard we aim for. Please contact us at esimtopup.io/support and we'll sort it out. — Tom, eSIM TopUp Support
Ethan P.
Italy · Jul 2026
Connected the moment I landed. Speeds were solid for maps, messaging and browsing. Highly recommend for any traveller.
Sophie
GotoeSIM Support
· 2 weeks ago So glad to hear this, Ethan! Wonderful to hear it worked smoothly in Japan & South Korea. Enjoy your journeys! – Sophie 💜
Olivia G.
Turkey · Jul 2026
Honestly better than buying a local SIM at the airport. Speeds were solid for maps, messaging and browsing.
Ken
GotoeSIM Support
· 2 weeks ago Really appreciate this, Olivia! Delighted the speeds worked well for you. Enjoy your journeys! — Ken
Sven G.
Switzerland · Jul 2026
Good coverage in the city, a bit patchy in remote areas.
Ken
GotoeSIM Support
· 3 weeks ago Thank you for taking the time, Sven. 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. — Ken
Katya K.
Italy · Jul 2026
Installed in minutes by scanning the QR code in Japan & South Korea. Topping up was straightforward when I needed more. Highly recommend for any traveller.
Omar
GotoeSIM Support
· 3 weeks ago So glad to hear this, Katya! Great to know the setup was quick and easy. Enjoy your journeys! – Omar, eSIM TopUp Support
Isabella H.
Thailand · Jul 2026
Decent speeds, though slower than I expected in a few spots. The QR code arrived instantly by email.
Omar
GotoeSIM Support
· 3 weeks ago Apologies for the trouble, Isabella. This isn't the standard we aim for. Reach our team at esimtopup.io/support so we can help right away. – Omar, eSIM TopUp Support
Liam D.
Ireland · Jul 2026
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.
Emma
GotoeSIM Support
· 3 weeks ago Thank you so much, Liam! Love that you were online the moment you landed in Japan & South Korea. We're here whenever you travel again. – Emma 💜
Giulia K.
Japan · Jul 2026
Great value compared to roaming charges. Coverage was strong even outside the city.
Sara
GotoeSIM Support
· 3 weeks ago So glad to hear this, Giulia! So pleased it saved you from roaming bills. Safe travels, and see you on your next trip! – Sara 💜
Linh P.
Mexico · Jul 2026
No more hunting for a SIM card kiosk on arrival. Signal held up well on trains and in rural areas. Highly recommend for any traveller.
Emma
GotoeSIM Support
· 3 weeks ago Really appreciate this, Linh! Wonderful to hear it worked smoothly in Japan & South Korea. Safe travels, and see you on your next trip! – Emma, eSIM TopUp Support
Mohammed M.
Italy · Jul 2026
Used this on my trip and it worked perfectly. Activation was automatic when I arrived. Exactly as described — no surprises.
Anna
GotoeSIM Support
· 3 weeks ago Cheers, Mohammed! Delighted the speeds worked well for you. Wishing you many more connected adventures! — Anna
Ingrid V.
South Korea · Jul 2026
Super easy to set up before I flew out. The QR code arrived instantly by email.
Laura
GotoeSIM Support
· 3 weeks ago Thank you for the kind words, Ingrid! So happy the Japan & South Korea eSIM kept you connected. Come back anytime! – Laura 💜
Arjun F.
New Zealand · Jul 2026
Super easy to set up before I flew out in Japan & South Korea. Customer support answered my question quickly.
David
GotoeSIM Support
· 3 weeks ago Cheers, Arjun! Wonderful to hear it worked smoothly in Japan & South Korea. Safe travels, and see you on your next trip! – David 💜
Priya P.
Sweden · Jul 2026
Solid overall, just wish there was a bit more data for the price.
James
GotoeSIM Support
· 4 weeks ago Thanks for the honest feedback, Priya. We're constantly optimising speeds and coverage across Japan & South Korea. Any questions, our team is at esimtopup.io/support. – James, eSIM TopUp Support
Katya P.
South Korea · Jul 2026
Saved me a fortune on my holiday. Topping up was straightforward when I needed more. Five stars from me.
Ingrid
GotoeSIM Support
· 4 weeks ago So glad to hear this, Katya! Thrilled it made staying connected effortless. Enjoy your journeys! — Ingrid
Yuki N.
Saudi Arabia · Jul 2026
Did the job without any drama. The QR code arrived instantly by email. Five stars from me.
Ingrid
GotoeSIM Support
· 1 month ago Thanks a lot, Yuki! Love that you were online the moment you landed in Japan & South Korea. – Ingrid 💜
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?