Japan & South Korea eSIM — reviews & details
Japan & South Korea 10GB 30days · 10 GB · 30 days
620 reviews
Coverage & networks
- Japan KDDI/au 5G
- South Korea SKTelecom 5G LG Uplus 5G
Traveller reviews
Daniel K.
Germany · Sep 2025
Decent speeds, though slower than I expected in a few spots. Customer support answered my question quickly.
Omar
GotoeSIM Support
· 10 months ago We're really sorry, Daniel. That's not the experience we want for Japan & South Korea. Reach our team at esimtopup.io/support so we can help right away. – Omar, eSIM TopUp Support
Priya H.
United Kingdom · Sep 2025
Exactly what I needed for travelling in Japan & South Korea. Setup instructions in the app were clear and simple. Telling my friends about this.
Grace
GotoeSIM Support
· 10 months ago Really appreciate this, Priya! Delighted the speeds worked well for you. Safe travels, and see you on your next trip! — Grace
Mateo B.
Philippines · Sep 2025
Good coverage in the city, a bit patchy in remote areas. Ran hotspot to my laptop with no issues.
Anna
GotoeSIM Support
· 10 months ago Appreciate you sharing this, Mateo. 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. — Anna
Ryan K.
Singapore · Sep 2025
Good coverage in the city, a bit patchy in remote areas.
Emma
GotoeSIM Support
· 10 months ago Appreciate you sharing this, Ryan. We're constantly optimising speeds and coverage across Japan & South Korea. Any questions, our team is at esimtopup.io/support. – Emma, eSIM TopUp Support
Diego T.
Mexico · Sep 2025
No more hunting for a SIM card kiosk on arrival in Japan & South Korea. Signal held up well on trains and in rural areas. Zero regrets.
Emma
GotoeSIM Support
· 11 months ago Cheers, Diego! Wonderful to hear it worked smoothly in Japan & South Korea. Come back anytime! – Emma, eSIM TopUp Support
Liam N.
Poland · Sep 2025
Worked fine but took a little while to connect at first. Data lasted the whole trip with room to spare.
Sara
GotoeSIM Support
· 11 months ago Appreciate you sharing this, Liam. 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. — Sara, eSIM TopUp Support
Somchai W.
Singapore · Sep 2025
Connected the moment I landed. Ran hotspot to my laptop with no issues. Five stars from me.
Tom
GotoeSIM Support
· 11 months ago Thanks a lot, Somchai! So pleased it saved you from roaming bills. Come back anytime! — Tom, eSIM TopUp Support
Ananya D.
Turkey · Sep 2025
Did the job without any drama in Japan & South Korea. Coverage was strong even outside the city.
Omar
GotoeSIM Support
· 11 months ago Thank you for the kind words, Ananya! So pleased it saved you from roaming bills. – Omar, eSIM TopUp Support
Hugo B.
Malaysia · Sep 2025
Super easy to set up before I flew out. Ran hotspot to my laptop with no issues.
Priya
GotoeSIM Support
· 11 months ago Cheers, Hugo! Delighted the speeds worked well for you. — Priya, eSIM TopUp Support
Haruto N.
France · Sep 2025
Exactly what I needed for travelling. Setup instructions in the app were clear and simple. Would definitely buy again.
Sophie
GotoeSIM Support
· 11 months ago Thank you so much, Haruto! Thrilled it made staying connected effortless. Come back anytime! — Sophie, eSIM TopUp Support
Thomas H.
Sweden · Sep 2025
No more hunting for a SIM card kiosk on arrival. I kept my normal number for calls while using this for data. Would definitely buy again.
Ingrid
GotoeSIM Support
· 11 months ago Thanks a lot, Thomas! Wonderful to hear it worked smoothly in Japan & South Korea. – Ingrid, eSIM TopUp Support
Anna B.
Turkey · Aug 2025
Bought it the night before my flight — smooth process. Customer support answered my question quickly. A must-have for international travel.
Anna
GotoeSIM Support
· 11 months ago Thank you for the kind words, Anna! Delighted the speeds worked well for you. – Anna 💜
Ava F.
Brazil · Aug 2025
Did the job without any drama. Speeds were solid for maps, messaging and browsing. Will use eSIM TopUp for my next trip for sure.
Diego
GotoeSIM Support
· 11 months ago Thank you for the kind words, Ava! So happy the Japan & South Korea eSIM kept you connected. Wishing you many more connected adventures! – Diego 💜
Lea N.
United Kingdom · Aug 2025
Did the job without any drama. Customer support answered my question quickly. Zero regrets.
Diego
GotoeSIM Support
· 11 months ago Really appreciate this, Lea! So happy the Japan & South Korea eSIM kept you connected. Come back anytime! – Diego 💜
Beatriz M.
Portugal · Aug 2025
First time using an eSIM and it was painless. Signal held up well on trains and in rural areas. Would definitely buy again.
Laura
GotoeSIM Support
· 11 months ago Thank you for the kind words, Beatriz! Great to know the setup was quick and easy. We're here whenever you travel again. – Laura, eSIM TopUp Support
Frequently asked questions
How much does the Japan & South Korea eSIM cost?
The Japan & South Korea 10GB 30days plan costs $19.20 for 10 GB over 30 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
Lea T. · 4 weeks ago
Can I top up the same eSIM instead of buying a new one?
Mohammed H. · 1 month ago
How long does the QR code take to arrive after payment?
Ji-woo R. · 3 months ago
Is roaming charged extra or is it all included?
Budi C. · 3 months ago
Can I use this for hotspot/tethering?
Arjun S. · 4 months ago
Does the validity start on purchase or on first use?
Sven R. · 5 months ago
Which networks does this connect to?
Sarah D. · 7 months ago
Can I use it in nearby countries too?
Mei B. · 7 months ago
Thanks, installed with no problems on my Samsung.
Wei T. · 7 months ago
Is 5G supported or just 4G?
Wei D. · 9 months ago
How do I check how much data I have left?
Isabella H. · 9 months ago
Great guide, the setup steps were really helpful.
Fatima K. · 1 year ago
Does this work on an iPhone 13?