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
Daniel M.
Turkey · Apr 2026
Bought it the night before my flight — smooth process. Customer support answered my question quickly. Highly recommend for any traveller.
Emma
GotoeSIM Support
· 3 months ago Thanks for sharing, Daniel! Thrilled it made staying connected effortless. Enjoy your journeys! — Emma, eSIM TopUp Support
Kenji L.
Thailand · Apr 2026
Honestly better than buying a local SIM at the airport. I kept my normal number for calls while using this for data. Telling my friends about this.
Grace
GotoeSIM Support
· 3 months ago So glad to hear this, Kenji! Thrilled it made staying connected effortless. Wishing you many more connected adventures! – Grace, eSIM TopUp Support
Mateo D.
Poland · Apr 2026
Saved me a fortune on my holiday. Speeds were solid for maps, messaging and browsing. Highly recommend for any traveller.
Grace
GotoeSIM Support
· 4 months ago Thanks for sharing, Mateo! Delighted the speeds worked well for you. – Grace, eSIM TopUp Support
Grace H.
Japan · Apr 2026
Super easy to set up before I flew out in Japan & South Korea. I kept my normal number for calls while using this for data.
Sara
GotoeSIM Support
· 4 months ago Thank you so much, Grace! Wonderful to hear it worked smoothly in Japan & South Korea. Safe travels, and see you on your next trip! – Sara 💜
Isabella R.
France · Apr 2026
Decent speeds, though slower than I expected in a few spots.
Mark
GotoeSIM Support
· 4 months ago Appreciate you sharing this, Isabella. 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. — Mark, eSIM TopUp Support
Katya L.
Philippines · Apr 2026
Exactly what I needed for travelling. Coverage was strong even outside the city. Highly recommend for any traveller.
Laura
GotoeSIM Support
· 4 months ago Cheers, Katya! So happy the Japan & South Korea eSIM kept you connected. Safe travels, and see you on your next trip! — Laura
Anna H.
Saudi Arabia · Apr 2026
Did the job without any drama. Activation was automatic when I arrived. A must-have for international travel.
Tom
GotoeSIM Support
· 4 months ago Thanks for sharing, Anna! Wonderful to hear it worked smoothly in Japan & South Korea. Wishing you many more connected adventures! — Tom
Noah W.
Spain · Apr 2026
First time using an eSIM and it was painless. The QR code arrived instantly by email. A must-have for international travel.
Emma
GotoeSIM Support
· 4 months ago Thanks a lot, Noah! Love that you were online the moment you landed in Japan & South Korea. Come back anytime! — Emma, eSIM TopUp Support
Lucia F.
Poland · Apr 2026
Install took me two tries but was fine after that. Customer support answered my question quickly.
Anna
GotoeSIM Support
· 4 months ago Appreciate you sharing this, Lucia. We're constantly optimising speeds and coverage across Japan & South Korea. Any questions, our team is at esimtopup.io/support. — Anna, eSIM TopUp Support
James F.
Poland · Apr 2026
Great value compared to roaming charges. Streaming and video calls worked without buffering.
Laura
GotoeSIM Support
· 4 months ago Really appreciate this, James! Thrilled it made staying connected effortless. We're here whenever you travel again. — Laura
Sophia K.
Poland · Apr 2026
Super easy to set up before I flew out. The QR code arrived instantly by email. Highly recommend for any traveller.
Omar
GotoeSIM Support
· 4 months ago Thanks a lot, Sophia! So pleased it saved you from roaming bills. Come back anytime! — Omar, eSIM TopUp Support
Louis S.
New Zealand · Mar 2026
Great value compared to roaming charges. Activation was automatic when I arrived.
Anna
GotoeSIM Support
· 4 months ago So glad to hear this, Louis! Thrilled it made staying connected effortless. We're here whenever you travel again. – Anna 💜
Budi N.
Indonesia · Mar 2026
Exactly what I needed for travelling in Japan & South Korea. Topping up was straightforward when I needed more.
Mark
GotoeSIM Support
· 4 months ago So glad to hear this, Budi! So pleased it saved you from roaming bills. Wishing you many more connected adventures! — Mark
Ananya R.
Saudi Arabia · Mar 2026
No more hunting for a SIM card kiosk on arrival. Coverage was strong even outside the city. Exactly as described — no surprises.
Laura
GotoeSIM Support
· 4 months ago So glad to hear this, Ananya! So pleased it saved you from roaming bills. Wishing you many more connected adventures! — Laura, eSIM TopUp Support
Elena T.
Egypt · Mar 2026
No more hunting for a SIM card kiosk on arrival. Data lasted the whole trip with room to spare. A must-have for international travel.
Emma
GotoeSIM Support
· 4 months ago Thank you for the kind words, Elena! So happy the Japan & South Korea eSIM kept you connected. Safe travels, and see you on your next trip! — Emma
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?