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
Sarah S.
South Korea · Aug 2026
Super easy to set up before I flew out in Japan & South Korea. Topping up was straightforward when I needed more. A must-have for international travel.
Grace
GotoeSIM Support
· 6 days ago Really appreciate this, Sarah! Love that you were online the moment you landed in Japan & South Korea. – Grace, eSIM TopUp Support
Camila W.
Canada · Aug 2026
No more hunting for a SIM card kiosk on arrival. Setup instructions in the app were clear and simple. Exactly as described — no surprises.
Omar
GotoeSIM Support
· 1 week ago Cheers, Camila! Love that you were online the moment you landed in Japan & South Korea. — Omar, eSIM TopUp Support
Priya T.
India · Aug 2026
Worked fine but took a little while to connect at first. Streaming and video calls worked without buffering.
Mark
GotoeSIM Support
· 1 week ago So sorry to hear this, Priya. That's not the experience we want for Japan & South Korea. Reach our team at esimtopup.io/support so we can help right away. — Mark
Carlos G.
Japan · Aug 2026
Great value compared to roaming charges. Setup instructions in the app were clear and simple. Exactly as described — no surprises.
Tom
GotoeSIM Support
· 1 week ago Thanks a lot, Carlos! Thrilled it made staying connected effortless. — Tom, eSIM TopUp Support
Giulia P.
South Korea · Aug 2026
First time using an eSIM and it was painless. Streaming and video calls worked without buffering. Made staying connected effortless.
Emma
GotoeSIM Support
· 1 week ago So glad to hear this, Giulia! Wonderful to hear it worked smoothly in Japan & South Korea. Come back anytime! — Emma
Sophia F.
Mexico · Aug 2026
Used this on my trip and it worked perfectly. Streaming and video calls worked without buffering. A must-have for international travel.
Priya
GotoeSIM Support
· 1 week ago Thanks a lot, Sophia! So pleased it saved you from roaming bills. Safe travels, and see you on your next trip! — Priya, eSIM TopUp Support
Grace D.
United States · Jul 2026
Super easy to set up before I flew out. Coverage was strong even outside the city. Would definitely buy again.
Grace
GotoeSIM Support
· 1 week ago Thanks for sharing, Grace! Delighted the speeds worked well for you. We're here whenever you travel again. – Grace, eSIM TopUp Support
Linh T.
Italy · Jul 2026
Installed in minutes by scanning the QR code. Streaming and video calls worked without buffering.
Mark
GotoeSIM Support
· 1 week ago Thank you so much, Linh! So happy the Japan & South Korea eSIM kept you connected. – Mark 💜
Linh T.
Poland · Jul 2026
No more hunting for a SIM card kiosk on arrival. Streaming and video calls worked without buffering. Exactly as described — no surprises.
Yuki
GotoeSIM Support
· 2 weeks ago Thanks a lot, Linh! Thrilled it made staying connected effortless. Enjoy your journeys! — Yuki, eSIM TopUp Support
Min-jun N.
Italy · Jul 2026
Great value compared to roaming charges. Ran hotspot to my laptop with no issues. Would definitely buy again.
Mark
GotoeSIM Support
· 2 weeks ago Really appreciate this, Min-jun! Wonderful to hear it worked smoothly in Japan & South Korea. We're here whenever you travel again. – Mark, eSIM TopUp Support
Ingrid D.
Brazil · Jul 2026
Super easy to set up before I flew out. Setup instructions in the app were clear and simple. Great experience overall.
Sophie
GotoeSIM Support
· 2 weeks ago So glad to hear this, Ingrid! Wonderful to hear it worked smoothly in Japan & South Korea. Safe travels, and see you on your next trip! – Sophie, eSIM TopUp Support
Zoe L.
Australia · Jul 2026
Exactly what I needed for travelling. Data lasted the whole trip with room to spare. Five stars from me.
Ingrid
GotoeSIM Support
· 2 weeks ago Thanks for sharing, Zoe! Thrilled it made staying connected effortless. Safe travels, and see you on your next trip! – Ingrid 💜
Ji-woo N.
Mexico · Jul 2026
Decent speeds, though slower than I expected in a few spots.
Ingrid
GotoeSIM Support
· 3 weeks ago Appreciate you sharing this, Ji-woo. We're constantly optimising speeds and coverage across Japan & South Korea. Reach us anytime at esimtopup.io/support if we can help. – Ingrid, eSIM TopUp Support
Grace L.
Singapore · Jul 2026
Saved me a fortune on my holiday. Data lasted the whole trip with room to spare. Exactly as described — no surprises.
Ken
GotoeSIM Support
· 3 weeks ago Cheers, Grace! Thrilled it made staying connected effortless. We're here whenever you travel again. — Ken
Carlos K.
Poland · Jul 2026
Exactly what I needed for travelling. The QR code arrived instantly by email. Would definitely buy again.
Ken
GotoeSIM Support
· 3 weeks ago Cheers, Carlos! Thrilled it made staying connected effortless. Safe travels, and see you on your next trip! – Ken 💜
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?