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
Noah R.
Saudi Arabia · May 2026
First time using an eSIM and it was painless. Topping up was straightforward when I needed more. Five stars from me.
Anna
GotoeSIM Support
· 2 months ago Thank you for the kind words, Noah! So happy the Japan & South Korea eSIM kept you connected. Come back anytime! – Anna, eSIM TopUp Support
Linh R.
Ireland · May 2026
Great value compared to roaming charges in Japan & South Korea. Customer support answered my question quickly. Exactly as described — no surprises.
Tom
GotoeSIM Support
· 2 months ago Cheers, Linh! So happy the Japan & South Korea eSIM kept you connected. Wishing you many more connected adventures! — Tom, eSIM TopUp Support
Ji-woo W.
Poland · May 2026
Great value compared to roaming charges. The QR code arrived instantly by email. Great experience overall.
David
GotoeSIM Support
· 2 months ago Thanks for sharing, Ji-woo! So pleased it saved you from roaming bills. Safe travels, and see you on your next trip! – David 💜
Ananya D.
France · May 2026
Good coverage in the city, a bit patchy in remote areas.
Grace
GotoeSIM Support
· 2 months ago Apologies for the trouble, Ananya. We'd love the chance to make this right. Reach our team at esimtopup.io/support so we can help right away. — Grace
Emma L.
Philippines · May 2026
Did the job without any drama. Activation was automatic when I arrived in Japan & South Korea. Telling my friends about this.
Tom
GotoeSIM Support
· 3 months ago Thank you so much, Emma! Wonderful to hear it worked smoothly in Japan & South Korea. — Tom
Liam W.
Canada · May 2026
Worked fine but took a little while to connect at first.
Priya
GotoeSIM Support
· 3 months ago Thanks for the honest feedback, Liam. We're constantly optimising speeds and coverage across Japan & South Korea. Any questions, our team is at esimtopup.io/support. – Priya 💜
Camila R.
Malaysia · May 2026
Installed in minutes by scanning the QR code. Setup instructions in the app were clear and simple. Will use eSIM TopUp for my next trip for sure.
Sara
GotoeSIM Support
· 3 months ago Thank you for the kind words, Camila! Delighted the speeds worked well for you. — Sara, eSIM TopUp Support
Hana F.
Egypt · May 2026
Used this on my trip and it worked perfectly. Data lasted the whole trip with room to spare. Five stars from me.
Sophie
GotoeSIM Support
· 3 months ago Really appreciate this, Hana! Delighted the speeds worked well for you. – Sophie, eSIM TopUp Support
Katya D.
Netherlands · May 2026
Honestly better than buying a local SIM at the airport. Ran hotspot to my laptop with no issues. Exactly as described — no surprises.
Yuki
GotoeSIM Support
· 3 months ago Really appreciate this, Katya! Great to know the setup was quick and easy. – Yuki, eSIM TopUp Support
Ethan B.
Philippines · May 2026
Great value compared to roaming charges. Coverage was strong even outside the city. Would definitely buy again.
Sara
GotoeSIM Support
· 3 months ago So glad to hear this, Ethan! Thrilled it made staying connected effortless. Come back anytime! – Sara, eSIM TopUp Support
Daniel B.
Switzerland · May 2026
Super easy to set up before I flew out. Setup instructions in the app were clear and simple. Would definitely buy again.
Ingrid
GotoeSIM Support
· 3 months ago Cheers, Daniel! So happy the Japan & South Korea eSIM kept you connected. – Ingrid 💜
Sri F.
Brazil · Apr 2026
Did the job without any drama. Coverage was strong even outside the city. Great experience overall.
Anna
GotoeSIM Support
· 3 months ago So glad to hear this, Sri! Love that you were online the moment you landed in Japan & South Korea. Enjoy your journeys! — Anna, eSIM TopUp Support
James L.
Philippines · Apr 2026
Great value compared to roaming charges in Japan & South Korea. I kept my normal number for calls while using this for data.
Tom
GotoeSIM Support
· 3 months ago Thank you so much, James! Great to know the setup was quick and easy. Enjoy your journeys! – Tom 💜
Giulia B.
New Zealand · Apr 2026
Used this on my trip and it worked perfectly. Coverage was strong even outside the city.
James
GotoeSIM Support
· 3 months ago So glad to hear this, Giulia! Love that you were online the moment you landed in Japan & South Korea. Enjoy your journeys! – James 💜
Liam S.
New Zealand · Apr 2026
Good coverage in the city, a bit patchy in remote areas.
Omar
GotoeSIM Support
· 3 months ago Appreciate you sharing this, Liam. We're constantly optimising speeds and coverage across Japan & South Korea. Reach us anytime at esimtopup.io/support if we can help. — Omar
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?