Japan & South Korea eSIM — reviews & details
Japan & South Korea 5GB 30Days · 5 GB · 30 days
620 reviews
Coverage & networks
- Japan KDDI/au 5G
- South Korea SKTelecom 5G LG Uplus 5G
Traveller reviews
Linh S.
Germany · Nov 2025
Installed in minutes by scanning the QR code. Streaming and video calls worked without buffering. Five stars from me.
Omar
GotoeSIM Support
· 8 months ago Thank you so much, Linh! So happy the Japan & South Korea eSIM kept you connected. Come back anytime! — Omar
Louis R.
Egypt · Nov 2025
Decent speeds, though slower than I expected in a few spots.
Priya
GotoeSIM Support
· 8 months ago So sorry to hear this, Louis. This isn't the standard we aim for. Please contact us at esimtopup.io/support and we'll sort it out. — Priya, eSIM TopUp Support
Olivia S.
Indonesia · Nov 2025
Honestly better than buying a local SIM at the airport. Speeds were solid for maps, messaging and browsing. Made staying connected effortless.
Mark
GotoeSIM Support
· 8 months ago So glad to hear this, Olivia! So happy the Japan & South Korea eSIM kept you connected. Enjoy your journeys! – Mark 💜
Hugo N.
Brazil · Nov 2025
Great value compared to roaming charges. I kept my normal number for calls while using this for data. Exactly as described — no surprises.
Omar
GotoeSIM Support
· 8 months ago Thanks for sharing, Hugo! Delighted the speeds worked well for you. — Omar, eSIM TopUp Support
Priya T.
Turkey · Nov 2025
Connected the moment I landed. I kept my normal number for calls while using this for data. Five stars from me.
Priya
GotoeSIM Support
· 8 months ago Really appreciate this, Priya! Delighted the speeds worked well for you. – Priya, eSIM TopUp Support
Marco B.
United Kingdom · Nov 2025
Saved me a fortune on my holiday. The QR code arrived instantly by email. Five stars from me.
Grace
GotoeSIM Support
· 9 months ago Cheers, Marco! Great to know the setup was quick and easy. Come back anytime! – Grace, eSIM TopUp Support
Mohammed V.
Portugal · Nov 2025
Decent speeds, though slower than I expected in a few spots. Setup instructions in the app were clear and simple.
Ken
GotoeSIM Support
· 9 months ago Thanks for the honest feedback, Mohammed. We're constantly optimising speeds and coverage across Japan & South Korea. Reach us anytime at esimtopup.io/support if we can help. – Ken, eSIM TopUp Support
Sri H.
Sweden · Nov 2025
Super easy to set up before I flew out. I kept my normal number for calls while using this for data. Zero regrets.
David
GotoeSIM Support
· 9 months ago Thanks for sharing, Sri! Great to know the setup was quick and easy. — David, eSIM TopUp Support
Max T.
Japan · Nov 2025
Good coverage in the city, a bit patchy in remote areas. Activation was automatic when I arrived.
Mark
GotoeSIM Support
· 9 months ago Thanks for the honest feedback, Max. Good to hear it did the job, and we're working to make it even better. Reach us anytime at esimtopup.io/support if we can help. – Mark 💜
Min-jun C.
Netherlands · Oct 2025
Great value compared to roaming charges. I kept my normal number for calls while using this for data. A must-have for international travel.
Sara
GotoeSIM Support
· 9 months ago Thanks for sharing, Min-jun! Delighted the speeds worked well for you. Enjoy your journeys! – Sara 💜
Ingrid S.
Vietnam · Oct 2025
Bought it the night before my flight — smooth process in Japan & South Korea. Data lasted the whole trip with room to spare.
Omar
GotoeSIM Support
· 9 months ago Cheers, Ingrid! Delighted the speeds worked well for you. Safe travels, and see you on your next trip! — Omar
Olivia L.
Poland · Oct 2025
Installed in minutes by scanning the QR code. Coverage was strong even outside the city. Would definitely buy again.
Emma
GotoeSIM Support
· 9 months ago Thank you for the kind words, Olivia! So happy the Japan & South Korea eSIM kept you connected. Come back anytime! — Emma, eSIM TopUp Support
Carlos R.
Indonesia · Oct 2025
First time using an eSIM and it was painless. I kept my normal number for calls while using this for data. Telling my friends about this.
Sophie
GotoeSIM Support
· 9 months ago Thanks a lot, Carlos! Delighted the speeds worked well for you. – Sophie 💜
Anna M.
Saudi Arabia · Oct 2025
Decent speeds, though slower than I expected in a few spots. Speeds were solid for maps, messaging and browsing.
David
GotoeSIM Support
· 9 months ago So sorry to hear this, Anna. That's not the experience we want for Japan & South Korea. Reach our team at esimtopup.io/support so we can help right away. – David 💜
Beatriz M.
Brazil · Oct 2025
Exactly what I needed for travelling. Activation was automatic when I arrived. Will use eSIM TopUp for my next trip for sure.
Anna
GotoeSIM Support
· 9 months ago Thank you so much, Beatriz! Wonderful to hear it worked smoothly in Japan & South Korea. Come back anytime! – Anna 💜
Frequently asked questions
How much does the Japan & South Korea eSIM cost?
The Japan & South Korea 5GB 30Days plan costs $9.75 for 5 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
Emma M. · 2 months ago
Can I use this for hotspot/tethering?
Andre H. · 2 months ago
Is 5G supported or just 4G?
Elena H. · 3 months ago
Thanks, installed with no problems on my Samsung.
Arjun N. · 4 months ago
How do I check how much data I have left?
Lucia L. · 4 months ago
Will this keep my WhatsApp active with my home number?
Mohammed P. · 6 months ago
Which networks does this connect to?
Katya C. · 7 months ago
Can I use it in nearby countries too?
Liam G. · 7 months ago
Can I top up the same eSIM instead of buying a new one?
Emma C. · 7 months ago
Great guide, the setup steps were really helpful.
Katya K. · 9 months ago
How long does the QR code take to arrive after payment?
Lea N. · 1 year ago
Does the validity start on purchase or on first use?
Marco N. · 1 year ago
Do I need to install it before I travel or after I arrive?