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
James P.
South Korea · May 2026
Great value compared to roaming charges. I kept my normal number for calls while using this for data. Zero regrets.
Sara
GotoeSIM Support
· 3 months ago Thanks a lot, James! Great to know the setup was quick and easy. We're here whenever you travel again. — Sara, eSIM TopUp Support
Diego M.
Malaysia · May 2026
Great value compared to roaming charges. Setup instructions in the app were clear and simple.
Grace
GotoeSIM Support
· 3 months ago Really appreciate this, Diego! Delighted the speeds worked well for you. We're here whenever you travel again. — Grace
Giulia D.
Saudi Arabia · May 2026
Installed in minutes by scanning the QR code. Streaming and video calls worked without buffering. Five stars from me.
Diego
GotoeSIM Support
· 3 months ago Thanks a lot, Giulia! Great to know the setup was quick and easy. Wishing you many more connected adventures! — Diego, eSIM TopUp Support
Katya L.
Ireland · May 2026
Honestly better than buying a local SIM at the airport in Japan & South Korea. Data lasted the whole trip with room to spare.
Ken
GotoeSIM Support
· 3 months ago Thanks a lot, Katya! Thrilled it made staying connected effortless. Enjoy your journeys! — Ken
Wei K.
Poland · May 2026
Used this on my trip and it worked perfectly in Japan & South Korea. I kept my normal number for calls while using this for data. Five stars from me.
Emma
GotoeSIM Support
· 3 months ago Thanks for sharing, Wei! Great to know the setup was quick and easy. Wishing you many more connected adventures! — Emma
Somchai D.
Vietnam · May 2026
Honestly better than buying a local SIM at the airport. Speeds were solid for maps, messaging and browsing. Will use eSIM TopUp for my next trip for sure.
Emma
GotoeSIM Support
· 3 months ago Cheers, Somchai! Great to know the setup was quick and easy. Safe travels, and see you on your next trip! – Emma 💜
Daniel K.
Brazil · Apr 2026
Exactly what I needed for travelling. Ran hotspot to my laptop with no issues. Will use eSIM TopUp for my next trip for sure.
Emma
GotoeSIM Support
· 3 months ago So glad to hear this, Daniel! Thrilled it made staying connected effortless. Wishing you many more connected adventures! – Emma 💜
Mei C.
Mexico · Apr 2026
First time using an eSIM and it was painless. The QR code arrived instantly by email.
Diego
GotoeSIM Support
· 3 months ago Cheers, Mei! Thrilled it made staying connected effortless. – Diego 💜
Omar P.
South Korea · Apr 2026
Great value compared to roaming charges in Japan & South Korea. The QR code arrived instantly by email. Zero regrets.
Mark
GotoeSIM Support
· 3 months ago Thanks a lot, Omar! Wonderful to hear it worked smoothly in Japan & South Korea. — Mark
Isabella W.
Egypt · Apr 2026
Connected the moment I landed. Activation was automatic when I arrived.
Omar
GotoeSIM Support
· 3 months ago Thank you for the kind words, Isabella! So pleased it saved you from roaming bills. Wishing you many more connected adventures! — Omar, eSIM TopUp Support
Omar V.
India · Apr 2026
No more hunting for a SIM card kiosk on arrival. Data lasted the whole trip with room to spare.
Emma
GotoeSIM Support
· 3 months ago Thanks for sharing, Omar! Delighted the speeds worked well for you. We're here whenever you travel again. — Emma, eSIM TopUp Support
Liam T.
Mexico · Apr 2026
Honestly better than buying a local SIM at the airport. Topping up was straightforward when I needed more. Made staying connected effortless.
Mark
GotoeSIM Support
· 4 months ago Really appreciate this, Liam! So pleased it saved you from roaming bills. Safe travels, and see you on your next trip! – Mark, eSIM TopUp Support
Anna M.
Switzerland · Apr 2026
No more hunting for a SIM card kiosk on arrival. Topping up was straightforward when I needed more.
Mark
GotoeSIM Support
· 4 months ago Cheers, Anna! So pleased it saved you from roaming bills. Enjoy your journeys! – Mark, eSIM TopUp Support
Grace H.
New Zealand · Apr 2026
Saved me a fortune on my holiday. Signal held up well on trains and in rural areas.
Mark
GotoeSIM Support
· 4 months ago Thank you so much, Grace! Great to know the setup was quick and easy. — Mark, eSIM TopUp Support
Mohammed V.
Philippines · Apr 2026
Connected the moment I landed. Setup instructions in the app were clear and simple. Will use eSIM TopUp for my next trip for sure.
David
GotoeSIM Support
· 4 months ago Thank you for the kind words, Mohammed! Great to know the setup was quick and easy. Wishing you many more connected adventures! – David 💜
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.