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
Grace N.
France · Dec 2025
Used this on my trip and it worked perfectly. Activation was automatic when I arrived. Would definitely buy again.
David
GotoeSIM Support
· 8 months ago So glad to hear this, Grace! Delighted the speeds worked well for you. Enjoy your journeys! — David, eSIM TopUp Support
Wei W.
Thailand · Nov 2025
Great value compared to roaming charges. Topping up was straightforward when I needed more. Great experience overall.
Grace
GotoeSIM Support
· 8 months ago Cheers, Wei! Thrilled it made staying connected effortless. – Grace, eSIM TopUp Support
Mateo B.
Netherlands · Nov 2025
Saved me a fortune on my holiday. Ran hotspot to my laptop with no issues. Made staying connected effortless.
Sara
GotoeSIM Support
· 8 months ago Really appreciate this, Mateo! Delighted the speeds worked well for you. – Sara 💜
Ethan T.
France · Nov 2025
First time using an eSIM and it was painless. Activation was automatic when I arrived in Japan & South Korea. Would definitely buy again.
David
GotoeSIM Support
· 8 months ago So glad to hear this, Ethan! Wonderful to hear it worked smoothly in Japan & South Korea. – David 💜
Mohammed D.
Australia · Nov 2025
Super easy to set up before I flew out. I kept my normal number for calls while using this for data.
Sara
GotoeSIM Support
· 8 months ago So glad to hear this, Mohammed! Thrilled it made staying connected effortless. We're here whenever you travel again. — Sara, eSIM TopUp Support
Budi T.
Vietnam · Nov 2025
No more hunting for a SIM card kiosk on arrival in Japan & South Korea. Setup instructions in the app were clear and simple.
Grace
GotoeSIM Support
· 8 months ago So glad to hear this, Budi! Great to know the setup was quick and easy. Safe travels, and see you on your next trip! – Grace 💜
Sarah P.
Portugal · Nov 2025
Exactly what I needed for travelling. Ran hotspot to my laptop with no issues. Made staying connected effortless.
Tom
GotoeSIM Support
· 9 months ago Thanks a lot, Sarah! So happy the Japan & South Korea eSIM kept you connected. – Tom, eSIM TopUp Support
Sri G.
Vietnam · Nov 2025
Installed in minutes by scanning the QR code. Coverage was strong even outside the city. Would definitely buy again.
Tom
GotoeSIM Support
· 9 months ago Cheers, Sri! Love that you were online the moment you landed in Japan & South Korea. — Tom, eSIM TopUp Support
Grace C.
Mexico · Oct 2025
First time using an eSIM and it was painless in Japan & South Korea. The QR code arrived instantly by email. Will use eSIM TopUp for my next trip for sure.
Emma
GotoeSIM Support
· 9 months ago Thanks for sharing, Grace! Great to know the setup was quick and easy. Come back anytime! — Emma, eSIM TopUp Support
Nguyen V.
Poland · Oct 2025
Exactly what I needed for travelling. Setup instructions in the app were clear and simple. Will use eSIM TopUp for my next trip for sure.
James
GotoeSIM Support
· 9 months ago Thanks a lot, Nguyen! Wonderful to hear it worked smoothly in Japan & South Korea. Come back anytime! – James 💜
Noah L.
Vietnam · Oct 2025
Honestly better than buying a local SIM at the airport. Coverage was strong even outside the city. Highly recommend for any traveller.
Ken
GotoeSIM Support
· 9 months ago Thanks for sharing, Noah! So pleased it saved you from roaming bills. Enjoy your journeys! — Ken, eSIM TopUp Support
Beatriz H.
United Kingdom · Oct 2025
Exactly what I needed for travelling. Ran hotspot to my laptop with no issues.
Ingrid
GotoeSIM Support
· 10 months ago So glad to hear this, Beatriz! So pleased it saved you from roaming bills. — Ingrid
Ryan S.
New Zealand · Oct 2025
Bought it the night before my flight — smooth process. Signal held up well on trains and in rural areas. A must-have for international travel.
Omar
GotoeSIM Support
· 10 months ago So glad to hear this, Ryan! Delighted the speeds worked well for you. — Omar
Ji-woo M.
Portugal · Oct 2025
Bought it the night before my flight — smooth process. Data lasted the whole trip with room to spare.
Sophie
GotoeSIM Support
· 10 months ago Cheers, Ji-woo! Great to know the setup was quick and easy. — Sophie
Yuki G.
Mexico · Sep 2025
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.
James
GotoeSIM Support
· 10 months ago Thanks a lot, Yuki! Great to know the setup was quick and easy. Enjoy your journeys! — James, eSIM TopUp Support
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?