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
Marco K.
South Korea · Feb 2026
First time using an eSIM and it was painless. Data lasted the whole trip with room to spare.
David
GotoeSIM Support
· 5 months ago Really appreciate this, Marco! So pleased it saved you from roaming bills. — David, eSIM TopUp Support
Elena V.
Vietnam · Feb 2026
First time using an eSIM and it was painless. Speeds were solid for maps, messaging and browsing. Highly recommend for any traveller.
James
GotoeSIM Support
· 5 months ago So glad to hear this, Elena! So pleased it saved you from roaming bills. — James
Diego R.
Vietnam · Feb 2026
Honestly better than buying a local SIM at the airport. Setup instructions in the app were clear and simple. Exactly as described — no surprises.
Tom
GotoeSIM Support
· 6 months ago Thanks a lot, Diego! So pleased it saved you from roaming bills. – Tom, eSIM TopUp Support
Lucia F.
Germany · Feb 2026
First time using an eSIM and it was painless. Ran hotspot to my laptop with no issues. Will use eSIM TopUp for my next trip for sure.
Mark
GotoeSIM Support
· 6 months ago Cheers, Lucia! Wonderful to hear it worked smoothly in Japan & South Korea. – Mark, eSIM TopUp Support
Mateo K.
Germany · Feb 2026
Saved me a fortune on my holiday. Coverage was strong even outside the city.
Sophie
GotoeSIM Support
· 6 months ago So glad to hear this, Mateo! Love that you were online the moment you landed in Japan & South Korea. Wishing you many more connected adventures! — Sophie
Camila T.
UAE · Feb 2026
Honestly better than buying a local SIM at the airport. Speeds were solid for maps, messaging and browsing. Great experience overall.
Sara
GotoeSIM Support
· 6 months ago Cheers, Camila! Delighted the speeds worked well for you. We're here whenever you travel again. – Sara, eSIM TopUp Support
Pablo K.
United Kingdom · Feb 2026
Used this on my trip and it worked perfectly. Data lasted the whole trip with room to spare.
Diego
GotoeSIM Support
· 6 months ago So glad to hear this, Pablo! So pleased it saved you from roaming bills. – Diego 💜
Sri B.
Japan · Feb 2026
No more hunting for a SIM card kiosk on arrival. Streaming and video calls worked without buffering. Would definitely buy again.
Anna
GotoeSIM Support
· 6 months ago Thanks for sharing, Sri! So happy the Japan & South Korea eSIM kept you connected. Safe travels, and see you on your next trip! — Anna
Yuki C.
Mexico · Feb 2026
First time using an eSIM and it was painless. Data lasted the whole trip with room to spare. A must-have for international travel.
Sara
GotoeSIM Support
· 6 months ago So glad to hear this, Yuki! Delighted the speeds worked well for you. Enjoy your journeys! – Sara, eSIM TopUp Support
Nguyen K.
Singapore · Jan 2026
Super easy to set up before I flew out. Activation was automatic when I arrived. Will use eSIM TopUp for my next trip for sure.
Laura
GotoeSIM Support
· 6 months ago Cheers, Nguyen! So pleased it saved you from roaming bills. Safe travels, and see you on your next trip! — Laura
Budi B.
Brazil · Jan 2026
First time using an eSIM and it was painless in Japan & South Korea. Setup instructions in the app were clear and simple. Highly recommend for any traveller.
Yuki
GotoeSIM Support
· 6 months ago So glad to hear this, Budi! Love that you were online the moment you landed in Japan & South Korea. – Yuki, eSIM TopUp Support
Somchai F.
Switzerland · Jan 2026
Did the job without any drama. Data lasted the whole trip with room to spare. Will use eSIM TopUp for my next trip for sure.
Emma
GotoeSIM Support
· 6 months ago So glad to hear this, Somchai! So happy the Japan & South Korea eSIM kept you connected. Come back anytime! – Emma 💜
Wei G.
Japan · Jan 2026
No more hunting for a SIM card kiosk on arrival. Ran hotspot to my laptop with no issues. Highly recommend for any traveller.
Priya
GotoeSIM Support
· 6 months ago Thank you so much, Wei! Great to know the setup was quick and easy. We're here whenever you travel again. – Priya, eSIM TopUp Support
Yuki G.
Poland · Jan 2026
Great value compared to roaming charges in Japan & South Korea. Customer support answered my question quickly.
Emma
GotoeSIM Support
· 6 months ago Thank you for the kind words, Yuki! Love that you were online the moment you landed in Japan & South Korea. We're here whenever you travel again. – Emma 💜
Beatriz R.
Germany · Jan 2026
Honestly better than buying a local SIM at the airport. Signal held up well on trains and in rural areas. Highly recommend for any traveller.
Yuki
GotoeSIM Support
· 7 months ago Thanks for sharing, Beatriz! Wonderful to hear it worked smoothly 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/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. · 4 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. · 6 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. · 9 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.