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
Omar P.
Egypt · Feb 2026
Honestly better than buying a local SIM at the airport. I kept my normal number for calls while using this for data. Zero regrets.
Laura
GotoeSIM Support
· 5 months ago Thanks a lot, Omar! Great to know the setup was quick and easy. We're here whenever you travel again. — Laura
Sofia R.
New Zealand · Feb 2026
No more hunting for a SIM card kiosk on arrival. Activation was automatic when I arrived. Made staying connected effortless.
Laura
GotoeSIM Support
· 5 months ago Thanks for sharing, Sofia! So pleased it saved you from roaming bills. We're here whenever you travel again. – Laura, eSIM TopUp Support
James D.
Switzerland · Feb 2026
Did the job without any drama. Customer support answered my question quickly.
Priya
GotoeSIM Support
· 6 months ago Really appreciate this, James! Love that you were online the moment you landed in Japan & South Korea. Safe travels, and see you on your next trip! – Priya, eSIM TopUp Support
Wei W.
Vietnam · Feb 2026
No more hunting for a SIM card kiosk on arrival. Speeds were solid for maps, messaging and browsing.
Yuki
GotoeSIM Support
· 6 months ago Thank you so much, Wei! Wonderful to hear it worked smoothly in Japan & South Korea. Wishing you many more connected adventures! – Yuki, eSIM TopUp Support
Ravi G.
Saudi Arabia · Jan 2026
Installed in minutes by scanning the QR code. Customer support answered my question quickly. Five stars from me.
David
GotoeSIM Support
· 6 months ago Really appreciate this, Ravi! Delighted the speeds worked well for you. — David
Sofia L.
Egypt · Jan 2026
Honestly better than buying a local SIM at the airport in Japan & South Korea. Speeds were solid for maps, messaging and browsing.
David
GotoeSIM Support
· 6 months ago Thank you for the kind words, Sofia! So happy the Japan & South Korea eSIM kept you connected. Safe travels, and see you on your next trip! — David
Grace T.
Switzerland · Jan 2026
Did the job without any drama. Coverage was strong even outside the city. Telling my friends about this.
Emma
GotoeSIM Support
· 6 months ago So glad to hear this, Grace! Wonderful to hear it worked smoothly in Japan & South Korea. Wishing you many more connected adventures! – Emma, eSIM TopUp Support
Lea M.
Poland · Jan 2026
Bought it the night before my flight — smooth process. Customer support answered my question quickly.
Diego
GotoeSIM Support
· 7 months ago Cheers, Lea! Wonderful to hear it worked smoothly in Japan & South Korea. Wishing you many more connected adventures! — Diego, eSIM TopUp Support
Giulia M.
Japan · Jan 2026
Used this on my trip and it worked perfectly. I kept my normal number for calls while using this for data.
David
GotoeSIM Support
· 7 months ago Cheers, Giulia! Love that you were online the moment you landed in Japan & South Korea. We're here whenever you travel again. – David 💜
Fatima K.
Egypt · Jan 2026
Installed in minutes by scanning the QR code. Activation was automatic when I arrived. Highly recommend for any traveller.
Tom
GotoeSIM Support
· 7 months ago Thank you so much, Fatima! So happy the Japan & South Korea eSIM kept you connected. Enjoy your journeys! – Tom 💜
Sophia V.
Sweden · Dec 2025
First time using an eSIM and it was painless. Streaming and video calls worked without buffering. Would definitely buy again.
Sophie
GotoeSIM Support
· 7 months ago Thanks a lot, Sophia! So happy the Japan & South Korea eSIM kept you connected. Come back anytime! — Sophie, eSIM TopUp Support
Wei T.
United Kingdom · Dec 2025
Saved me a fortune on my holiday in Japan & South Korea. Streaming and video calls worked without buffering. Telling my friends about this.
Omar
GotoeSIM Support
· 7 months ago Thank you so much, Wei! Delighted the speeds worked well for you. Enjoy your journeys! — Omar
Grace K.
Mexico · Dec 2025
Installed in minutes by scanning the QR code in Japan & South Korea. Speeds were solid for maps, messaging and browsing. Exactly as described — no surprises.
Sophie
GotoeSIM Support
· 7 months ago Thank you so much, Grace! Thrilled it made staying connected effortless. — Sophie, eSIM TopUp Support
Olivia C.
France · Dec 2025
Connected the moment I landed. Streaming and video calls worked without buffering. Highly recommend for any traveller.
Anna
GotoeSIM Support
· 7 months ago Thanks for sharing, Olivia! Delighted the speeds worked well for you. – Anna, eSIM TopUp Support
Emma B.
Australia · Dec 2025
Connected the moment I landed in Japan & South Korea. Customer support answered my question quickly. Made staying connected effortless.
James
GotoeSIM Support
· 8 months ago Thanks for sharing, Emma! So pleased it saved you from roaming bills. – James 💜
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?