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
Giulia B.
United States · Mar 2026
Exactly what I needed for travelling. Ran hotspot to my laptop with no issues. A must-have for international travel.
Yuki
GotoeSIM Support
· 5 months ago So glad to hear this, Giulia! Thrilled it made staying connected effortless. — Yuki, eSIM TopUp Support
Marco L.
South Korea · Mar 2026
Saved me a fortune on my holiday. I kept my normal number for calls while using this for data. Highly recommend for any traveller.
Yuki
GotoeSIM Support
· 5 months ago So glad to hear this, Marco! Great to know the setup was quick and easy. Come back anytime! — Yuki
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
Sven D.
New Zealand · Feb 2026
Exactly what I needed for travelling. Customer support answered my question quickly. Made staying connected effortless.
Omar
GotoeSIM Support
· 5 months ago So glad to hear this, Sven! Love that you were online the moment you landed in Japan & South Korea. Enjoy your journeys! — Omar, eSIM TopUp Support
Hana F.
New Zealand · Feb 2026
Did the job without any drama. Activation was automatic when I arrived. A must-have for international travel.
Grace
GotoeSIM Support
· 5 months ago Thank you for the kind words, Hana! Wonderful to hear it worked smoothly in Japan & South Korea. — Grace, 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
Sarah G.
South Korea · Feb 2026
Exactly what I needed for travelling. Data lasted the whole trip with room to spare. Made staying connected effortless.
Priya
GotoeSIM Support
· 5 months ago Thanks a lot, Sarah! Thrilled it made staying connected effortless. Come back anytime! — Priya
Sarah S.
Netherlands · Feb 2026
Used this on my trip and it worked perfectly. Customer support answered my question quickly. Will use eSIM TopUp for my next trip for sure.
Mark
GotoeSIM Support
· 5 months ago Thank you so much, Sarah! Wonderful to hear it worked smoothly in Japan & South Korea. Safe travels, and see you on your next trip! — Mark
Fatima L.
Vietnam · Feb 2026
No more hunting for a SIM card kiosk on arrival. Signal held up well on trains and in rural areas.
Tom
GotoeSIM Support
· 5 months ago Cheers, Fatima! Love that you were online the moment you landed in Japan & South Korea. – Tom, eSIM TopUp Support
Nguyen L.
Sweden · Feb 2026
Worked fine but took a little while to connect at first. The QR code arrived instantly by email.
Priya
GotoeSIM Support
· 5 months ago Thank you for taking the time, Nguyen. Glad it mostly worked for you in Japan & South Korea — we're always improving our coverage. Any questions, our team is at esimtopup.io/support. — Priya, eSIM TopUp Support
Andre D.
Canada · Feb 2026
First time using an eSIM and it was painless. Streaming and video calls worked without buffering. Great experience overall.
Yuki
GotoeSIM Support
· 5 months ago Really appreciate this, Andre! Great to know the setup was quick and easy. Enjoy your journeys! – Yuki, eSIM TopUp Support
Ryan D.
Italy · Feb 2026
Used this on my trip and it worked perfectly in Japan & South Korea. Speeds were solid for maps, messaging and browsing. Five stars from me.
Sophie
GotoeSIM Support
· 5 months ago Thank you for the kind words, Ryan! Thrilled it made staying connected effortless. – Sophie, eSIM TopUp Support
Ryan G.
United Kingdom · Feb 2026
Solid overall, just wish there was a bit more data for the price. Coverage was strong even outside the city.
Mark
GotoeSIM Support
· 6 months ago Thank you for taking the time, Ryan. Glad it mostly worked for you in Japan & South Korea — we're always improving our coverage. Any questions, our team is at esimtopup.io/support. — Mark
Chloe B.
Malaysia · Feb 2026
Did the job without any drama. Streaming and video calls worked without buffering. Made staying connected effortless.
Anna
GotoeSIM Support
· 6 months ago So glad to hear this, Chloe! So happy the Japan & South Korea eSIM kept you connected. We're here whenever you travel again. – Anna 💜
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
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.