Japan & South Korea eSIM — reviews & details
Japan & South Korea 1GB/Day · 1 GB/day · 1 days
620 reviews
Coverage & networks
- Japan KDDI/au 5G
- South Korea SKTelecom 5G LG Uplus 5G
Traveller reviews
Sven H.
Sweden · Apr 2026
Saved me a fortune on my holiday. Topping up was straightforward when I needed more. Would definitely buy again.
Sophie
GotoeSIM Support
· 3 months ago Really appreciate this, Sven! Love that you were online the moment you landed in Japan & South Korea. Enjoy your journeys! – Sophie, eSIM TopUp Support
Sven M.
Spain · Apr 2026
No more hunting for a SIM card kiosk on arrival. Streaming and video calls worked without buffering. Highly recommend for any traveller.
Ingrid
GotoeSIM Support
· 3 months ago Cheers, Sven! Great to know the setup was quick and easy. Safe travels, and see you on your next trip! – Ingrid 💜
Linh R.
Canada · Apr 2026
Connected the moment I landed in Japan & South Korea. Signal held up well on trains and in rural areas.
Ken
GotoeSIM Support
· 3 months ago Thanks for sharing, Linh! Delighted the speeds worked well for you. Wishing you many more connected adventures! – Ken, eSIM TopUp Support
Liam T.
United Kingdom · Apr 2026
Connected the moment I landed. The QR code arrived instantly by email.
Grace
GotoeSIM Support
· 3 months ago Cheers, Liam! Great to know the setup was quick and easy. — Grace
Min-jun P.
Japan · Apr 2026
Saved me a fortune on my holiday. Customer support answered my question quickly. Made staying connected effortless.
Sara
GotoeSIM Support
· 3 months ago Thanks for sharing, Min-jun! Thrilled it made staying connected effortless. We're here whenever you travel again. – Sara 💜
Giulia C.
Australia · Apr 2026
Install took me two tries but was fine after that.
Omar
GotoeSIM Support
· 3 months ago Thanks for the honest feedback, Giulia. Good to hear it did the job, and we're working to make it even better. Any questions, our team is at esimtopup.io/support. – Omar, eSIM TopUp Support
Marco V.
Ireland · Apr 2026
Bought it the night before my flight — smooth process. Data lasted the whole trip with room to spare. Zero regrets.
Laura
GotoeSIM Support
· 3 months ago Really appreciate this, Marco! Thrilled it made staying connected effortless. We're here whenever you travel again. — Laura, eSIM TopUp Support
Mohammed P.
Indonesia · Apr 2026
Solid overall, just wish there was a bit more data for the price. Ran hotspot to my laptop with no issues.
Omar
GotoeSIM Support
· 3 months ago Apologies for the trouble, Mohammed. This isn't the standard we aim for. Please contact us at esimtopup.io/support and we'll sort it out. – Omar 💜
Fatima K.
Sweden · Apr 2026
Installed in minutes by scanning the QR code. Speeds were solid for maps, messaging and browsing. A must-have for international travel.
Laura
GotoeSIM Support
· 3 months ago Thanks for sharing, Fatima! Wonderful to hear it worked smoothly in Japan & South Korea. – Laura 💜
Yuki L.
Australia · Apr 2026
Great value compared to roaming charges. I kept my normal number for calls while using this for data. A must-have for international travel.
Grace
GotoeSIM Support
· 3 months ago Cheers, Yuki! Great to know the setup was quick and easy. Come back anytime! — Grace
Somchai R.
Germany · Apr 2026
No more hunting for a SIM card kiosk on arrival. Activation was automatic when I arrived. Zero regrets.
David
GotoeSIM Support
· 3 months ago Thanks for sharing, Somchai! Love that you were online the moment you landed in Japan & South Korea. We're here whenever you travel again. — David, eSIM TopUp Support
Ananya D.
Malaysia · Apr 2026
Saved me a fortune on my holiday in Japan & South Korea. Coverage was strong even outside the city.
Diego
GotoeSIM Support
· 3 months ago Really appreciate this, Ananya! Great to know the setup was quick and easy. – Diego, eSIM TopUp Support
Sarah K.
Netherlands · Apr 2026
Did the job without any drama. Customer support answered my question quickly.
Omar
GotoeSIM Support
· 3 months ago Thank you for the kind words, Sarah! Love that you were online the moment you landed in Japan & South Korea. — Omar, eSIM TopUp Support
Budi W.
Singapore · Apr 2026
Honestly better than buying a local SIM at the airport. Ran hotspot to my laptop with no issues.
Tom
GotoeSIM Support
· 3 months ago Cheers, Budi! So happy the Japan & South Korea eSIM kept you connected. – Tom, eSIM TopUp Support
Noah N.
India · Apr 2026
Great value compared to roaming charges. Speeds were solid for maps, messaging and browsing. Great experience overall.
Sara
GotoeSIM Support
· 3 months ago Cheers, Noah! Great to know the setup was quick and easy. Safe travels, and see you on your next trip! — Sara, eSIM TopUp Support
Frequently asked questions
How much does the Japan & South Korea eSIM cost?
The Japan & South Korea 1GB/Day plan costs $2.03 for 1 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
Marco K. · 1 week ago
How long does the QR code take to arrive after payment?
Beatriz S. · 1 month ago
Does this work on an iPhone 13?
Budi D. · 3 months ago
Will this keep my WhatsApp active with my home number?
Lucas P. · 4 months ago
Is 5G supported or just 4G?
Grace B. · 6 months ago
Thanks, installed with no problems on my Samsung.
Liam L. · 6 months ago
Does the validity start on purchase or on first use?
Beatriz V. · 8 months ago
Which networks does this connect to?
Haruto G. · 9 months ago
Is roaming charged extra or is it all included?
Ryan N. · 9 months ago
Can I use it in nearby countries too?
Ava B. · 10 months ago
Do I need to install it before I travel or after I arrive?
Camila P. · 11 months ago
Can I top up the same eSIM instead of buying a new one?
Sofia B. · 11 months ago
Can I use this for hotspot/tethering?