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
Daniel W.
Italy · Feb 2026
Used this on my trip and it worked perfectly. Data lasted the whole trip with room to spare. Telling my friends about this.
Anna
GotoeSIM Support
· 5 months ago Thank you so much, Daniel! Thrilled it made staying connected effortless. Safe travels, and see you on your next trip! — Anna, eSIM TopUp Support
Noah L.
Thailand · Feb 2026
No more hunting for a SIM card kiosk on arrival. The QR code arrived instantly by email. Telling my friends about this.
Grace
GotoeSIM Support
· 5 months ago Really appreciate this, Noah! Great to know the setup was quick and easy. — Grace, eSIM TopUp Support
Emma S.
Switzerland · Feb 2026
Exactly what I needed for travelling in Japan & South Korea. Coverage was strong even outside the city. Will use eSIM TopUp for my next trip for sure.
Sara
GotoeSIM Support
· 5 months ago Thank you so much, Emma! So happy the Japan & South Korea eSIM kept you connected. – Sara 💜
Somchai W.
South Korea · Feb 2026
Great value compared to roaming charges. Signal held up well on trains and in rural areas.
Emma
GotoeSIM Support
· 5 months ago Thanks a lot, Somchai! So happy the Japan & South Korea eSIM kept you connected. Enjoy your journeys! – Emma, eSIM TopUp Support
Yuki R.
Turkey · Feb 2026
Super easy to set up before I flew out in Japan & South Korea. Signal held up well on trains and in rural areas.
Anna
GotoeSIM Support
· 5 months ago Thank you so much, Yuki! So happy the Japan & South Korea eSIM kept you connected. Enjoy your journeys! — Anna, eSIM TopUp Support
Mateo W.
Mexico · Feb 2026
First time using an eSIM and it was painless. Activation was automatic when I arrived in Japan & South Korea.
Anna
GotoeSIM Support
· 5 months ago Thank you for the kind words, Mateo! So happy the Japan & South Korea eSIM kept you connected. Enjoy your journeys! – Anna 💜
Hana P.
Canada · Feb 2026
Honestly better than buying a local SIM at the airport. I kept my normal number for calls while using this for data.
Diego
GotoeSIM Support
· 5 months ago Really appreciate this, Hana! Delighted the speeds worked well for you. Wishing you many more connected adventures! — Diego
Mateo T.
Malaysia · Feb 2026
First time using an eSIM and it was painless. Topping up was straightforward when I needed more. Five stars from me.
Sara
GotoeSIM Support
· 6 months ago Thanks for sharing, Mateo! Wonderful to hear it worked smoothly in Japan & South Korea. Safe travels, and see you on your next trip! – Sara 💜
Nadia F.
Vietnam · Feb 2026
Great value compared to roaming charges in Japan & South Korea. Streaming and video calls worked without buffering. Exactly as described — no surprises.
Omar
GotoeSIM Support
· 6 months ago Thank you so much, Nadia! So pleased it saved you from roaming bills. – Omar, eSIM TopUp Support
Ji-woo N.
Poland · Feb 2026
First time using an eSIM and it was painless in Japan & South Korea. I kept my normal number for calls while using this for data. Zero regrets.
Grace
GotoeSIM Support
· 6 months ago Thank you so much, Ji-woo! Love that you were online the moment you landed in Japan & South Korea. We're here whenever you travel again. — Grace, eSIM TopUp Support
Emma H.
Saudi Arabia · Feb 2026
Super easy to set up before I flew out. Customer support answered my question quickly. Would definitely buy again.
David
GotoeSIM Support
· 6 months ago Thank you for the kind words, Emma! Love that you were online the moment you landed in Japan & South Korea. Wishing you many more connected adventures! – David, eSIM TopUp Support
Haruto P.
Mexico · Feb 2026
Great value compared to roaming charges. I kept my normal number for calls while using this for data. Five stars from me.
Emma
GotoeSIM Support
· 6 months ago So glad to hear this, Haruto! So happy the Japan & South Korea eSIM kept you connected. Wishing you many more connected adventures! – Emma, eSIM TopUp Support
Diego G.
Canada · Jan 2026
Bought it the night before my flight — smooth process in Japan & South Korea. Coverage was strong even outside the city. Would definitely buy again.
David
GotoeSIM Support
· 6 months ago Really appreciate this, Diego! So pleased it saved you from roaming bills. Enjoy your journeys! – David, eSIM TopUp Support
Ananya D.
Thailand · Jan 2026
Great value compared to roaming charges. Data lasted the whole trip with room to spare. Made staying connected effortless.
Omar
GotoeSIM Support
· 6 months ago Thanks for sharing, Ananya! Wonderful to hear it worked smoothly in Japan & South Korea. Come back anytime! — Omar
Sarah L.
Mexico · Jan 2026
Installed in minutes by scanning the QR code. Data lasted the whole trip with room to spare.
Mark
GotoeSIM Support
· 6 months ago Really appreciate this, Sarah! Thrilled it made staying connected effortless. Enjoy your journeys! – Mark, 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?