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
Noah P.
United Kingdom · Jun 2026
Bought it the night before my flight — smooth process. Data lasted the whole trip with room to spare.
David
GotoeSIM Support
· 2 months ago Thanks a lot, Noah! Great to know the setup was quick and easy. — David
Thomas K.
Switzerland · Jun 2026
No more hunting for a SIM card kiosk on arrival. Activation was automatic when I arrived in Japan & South Korea. Five stars from me.
Ingrid
GotoeSIM Support
· 2 months ago Thank you so much, Thomas! Love that you were online the moment you landed in Japan & South Korea. Safe travels, and see you on your next trip! — Ingrid, eSIM TopUp Support
Sarah B.
Switzerland · Jun 2026
Exactly what I needed for travelling. Streaming and video calls worked without buffering. Telling my friends about this.
David
GotoeSIM Support
· 2 months ago Thank you so much, Sarah! Great to know the setup was quick and easy. Wishing you many more connected adventures! – David, eSIM TopUp Support
Camila R.
Saudi Arabia · Jun 2026
Used this on my trip and it worked perfectly. Coverage was strong even outside the city. A must-have for international travel.
Sophie
GotoeSIM Support
· 2 months ago Thanks a lot, Camila! Wonderful to hear it worked smoothly in Japan & South Korea. We're here whenever you travel again. — Sophie, eSIM TopUp Support
Linh N.
New Zealand · Jun 2026
Bought it the night before my flight — smooth process. Data lasted the whole trip with room to spare. Zero regrets.
James
GotoeSIM Support
· 2 months ago Really appreciate this, Linh! Thrilled it made staying connected effortless. Enjoy your journeys! — James
Carlos L.
Netherlands · Jun 2026
Worked fine but took a little while to connect at first.
Ken
GotoeSIM Support
· 2 months ago Thank you for taking the time, Carlos. We're constantly optimising speeds and coverage across Japan & South Korea. Any questions, our team is at esimtopup.io/support. — Ken
Linh K.
UAE · Jun 2026
Bought it the night before my flight — smooth process. Signal held up well on trains and in rural areas. Great experience overall.
Diego
GotoeSIM Support
· 2 months ago So glad to hear this, Linh! So pleased it saved you from roaming bills. Come back anytime! — Diego
Arjun F.
India · Jun 2026
No more hunting for a SIM card kiosk on arrival. Data lasted the whole trip with room to spare. Great experience overall.
Yuki
GotoeSIM Support
· 2 months ago Thank you for the kind words, Arjun! Love that you were online the moment you landed in Japan & South Korea. – Yuki 💜
Viktor F.
New Zealand · Jun 2026
Saved me a fortune on my holiday. The QR code arrived instantly by email. Highly recommend for any traveller.
Mark
GotoeSIM Support
· 2 months ago Cheers, Viktor! Great to know the setup was quick and easy. We're here whenever you travel again. — Mark, eSIM TopUp Support
Carlos C.
Australia · Jun 2026
Super easy to set up before I flew out. Speeds were solid for maps, messaging and browsing.
Laura
GotoeSIM Support
· 2 months ago So glad to hear this, Carlos! Wonderful to hear it worked smoothly in Japan & South Korea. Come back anytime! — Laura, eSIM TopUp Support
Ravi L.
Switzerland · Jun 2026
Connected the moment I landed in Japan & South Korea. Customer support answered my question quickly.
Sara
GotoeSIM Support
· 2 months ago Really appreciate this, Ravi! So happy the Japan & South Korea eSIM kept you connected. Enjoy your journeys! – Sara 💜
Giulia G.
United Kingdom · Jun 2026
Good coverage in the city, a bit patchy in remote areas.
Ingrid
GotoeSIM Support
· 2 months ago Apologies for the trouble, Giulia. That's not the experience we want for Japan & South Korea. Reach our team at esimtopup.io/support so we can help right away. — Ingrid, eSIM TopUp Support
Arjun G.
Canada · May 2026
Great value compared to roaming charges. Coverage was strong even outside the city. Will use eSIM TopUp for my next trip for sure.
Grace
GotoeSIM Support
· 2 months ago Really appreciate this, Arjun! So happy the Japan & South Korea eSIM kept you connected. Come back anytime! — Grace
Liam S.
Ireland · May 2026
Used this on my trip and it worked perfectly. The QR code arrived instantly by email.
Mark
GotoeSIM Support
· 2 months ago So glad to hear this, Liam! Wonderful to hear it worked smoothly in Japan & South Korea. – Mark, eSIM TopUp Support
Min-jun B.
Indonesia · May 2026
Honestly better than buying a local SIM at the airport. The QR code arrived instantly by email. Great experience overall.
Ingrid
GotoeSIM Support
· 2 months ago Really appreciate this, Min-jun! Thrilled it made staying connected effortless. Enjoy your journeys! – Ingrid, 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?