Japan & South Korea eSIM — reviews & details
Japan & South Korea 10GB/Day · 10 GB/day · 1 days
620 reviews
Coverage & networks
- Japan KDDI/au 5G
- South Korea SKTelecom 5G LG Uplus 5G
Traveller reviews
Giulia H.
Sweden · Nov 2025
Connected the moment I landed. Streaming and video calls worked without buffering. Highly recommend for any traveller.
Diego
GotoeSIM Support
· 9 months ago Thank you so much, Giulia! Love that you were online the moment you landed in Japan & South Korea. – Diego 💜
Nadia H.
Saudi Arabia · Nov 2025
Great value compared to roaming charges. Customer support answered my question quickly. Zero regrets.
Laura
GotoeSIM Support
· 9 months ago Really appreciate this, Nadia! Love that you were online the moment you landed in Japan & South Korea. Enjoy your journeys! – Laura, eSIM TopUp Support
James C.
Philippines · Nov 2025
Decent speeds, though slower than I expected in a few spots.
James
GotoeSIM Support
· 9 months ago Thank you for taking the time, James. Glad it mostly worked for you in Japan & South Korea — we're always improving our coverage. Reach us anytime at esimtopup.io/support if we can help. – James, eSIM TopUp Support
Lucia W.
Mexico · Nov 2025
Super easy to set up before I flew out. Data lasted the whole trip with room to spare.
Mark
GotoeSIM Support
· 9 months ago Cheers, Lucia! Love that you were online the moment you landed in Japan & South Korea. Wishing you many more connected adventures! – Mark, eSIM TopUp Support
Sarah G.
Netherlands · Nov 2025
Did the job without any drama. Data lasted the whole trip with room to spare. Zero regrets.
Diego
GotoeSIM Support
· 9 months ago Cheers, Sarah! Delighted the speeds worked well for you. — Diego
Aisha M.
United Kingdom · Nov 2025
Connected the moment I landed in Japan & South Korea. The QR code arrived instantly by email. Highly recommend for any traveller.
Anna
GotoeSIM Support
· 9 months ago Thanks for sharing, Aisha! Wonderful to hear it worked smoothly in Japan & South Korea. Wishing you many more connected adventures! – Anna, eSIM TopUp Support
Mateo R.
Egypt · Nov 2025
Install took me two tries but was fine after that. Setup instructions in the app were clear and simple.
David
GotoeSIM Support
· 9 months ago Appreciate you sharing this, Mateo. 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. — David
Daniel M.
India · Nov 2025
First time using an eSIM and it was painless. Coverage was strong even outside the city. Made staying connected effortless.
Ingrid
GotoeSIM Support
· 9 months ago Thank you for the kind words, Daniel! So happy the Japan & South Korea eSIM kept you connected. Safe travels, and see you on your next trip! – Ingrid, eSIM TopUp Support
Zoe W.
Ireland · Nov 2025
Saved me a fortune on my holiday. Speeds were solid for maps, messaging and browsing. Made staying connected effortless.
Anna
GotoeSIM Support
· 9 months ago Really appreciate this, Zoe! So pleased it saved you from roaming bills. — Anna
Ingrid R.
United States · Nov 2025
Installed in minutes by scanning the QR code. The QR code arrived instantly by email.
Tom
GotoeSIM Support
· 9 months ago Thank you so much, Ingrid! So happy the Japan & South Korea eSIM kept you connected. We're here whenever you travel again. – Tom 💜
Aisha T.
United States · Nov 2025
Worked fine but took a little while to connect at first. Coverage was strong even outside the city.
Tom
GotoeSIM Support
· 9 months ago Appreciate you sharing this, Aisha. We're constantly optimising speeds and coverage across Japan & South Korea. Reach us anytime at esimtopup.io/support if we can help. — Tom, eSIM TopUp Support
Sarah R.
Turkey · Oct 2025
Used this on my trip and it worked perfectly in Japan & South Korea. Topping up was straightforward when I needed more. A must-have for international travel.
Ken
GotoeSIM Support
· 9 months ago Thank you so much, Sarah! Love that you were online the moment you landed in Japan & South Korea. Come back anytime! — Ken
Carlos V.
UAE · Oct 2025
Honestly better than buying a local SIM at the airport. Customer support answered my question quickly. Made staying connected effortless.
Mark
GotoeSIM Support
· 9 months ago So glad to hear this, Carlos! Love that you were online the moment you landed in Japan & South Korea. — Mark
Ingrid K.
Portugal · Oct 2025
Saved me a fortune on my holiday. I kept my normal number for calls while using this for data. Exactly as described — no surprises.
Tom
GotoeSIM Support
· 9 months ago Thank you for the kind words, Ingrid! Delighted the speeds worked well for you. Safe travels, and see you on your next trip! – Tom 💜
Noah H.
Thailand · Oct 2025
Used this on my trip and it worked perfectly. Ran hotspot to my laptop with no issues. Made staying connected effortless.
Omar
GotoeSIM Support
· 9 months ago Thank you so much, Noah! Thrilled it made staying connected effortless. Safe travels, and see you on your next trip! — Omar
Frequently asked questions
How much does the Japan & South Korea eSIM cost?
The Japan & South Korea 10GB/Day plan costs $14.18 for 10 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
Sven N. · 4 weeks ago
Which networks does this connect to?
Ryan W. · 2 months ago
Does the validity start on purchase or on first use?
Fatima G. · 3 months ago
Can I use this for hotspot/tethering?
James C. · 5 months ago
Do I need to install it before I travel or after I arrive?
Ji-woo H. · 6 months ago
Is 5G supported or just 4G?
Sven S. · 7 months ago
How long does the QR code take to arrive after payment?
Zoe G. · 7 months ago
Is roaming charged extra or is it all included?
Lea F. · 7 months ago
How do I check how much data I have left?
Omar P. · 10 months ago
Can I use it in nearby countries too?
Thomas M. · 10 months ago
Does this work on an iPhone 13?
Pablo B. · 1 year ago
Great guide, the setup steps were really helpful.
Mohammed N. · 1 year ago
Thanks, installed with no problems on my Samsung.