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
Mohammed D.
Australia · Jun 2025
Decent speeds, though slower than I expected in a few spots. Streaming and video calls worked without buffering.
Ken
GotoeSIM Support
· 1 year ago Thank you for taking the time, Mohammed. 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. — Ken, eSIM TopUp Support
Mohammed W.
Philippines · Jun 2025
Super easy to set up before I flew out in Japan & South Korea. Speeds were solid for maps, messaging and browsing.
Yuki
GotoeSIM Support
· 1 year ago Thank you for the kind words, Mohammed! Wonderful to hear it worked smoothly in Japan & South Korea. We're here whenever you travel again. — Yuki
Somchai N.
Vietnam · Jun 2025
Decent speeds, though slower than I expected in a few spots.
Omar
GotoeSIM Support
· 1 year ago We're really sorry, Somchai. 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
Ava G.
Philippines · Jun 2025
Installed in minutes by scanning the QR code. Data lasted the whole trip with room to spare.
Yuki
GotoeSIM Support
· 1 year ago Thanks a lot, Ava! Wonderful to hear it worked smoothly in Japan & South Korea. Enjoy your journeys! – Yuki 💜
Nadia K.
Italy · Jun 2025
Honestly better than buying a local SIM at the airport. Topping up was straightforward when I needed more.
Ken
GotoeSIM Support
· 1 year ago Thank you for the kind words, Nadia! Wonderful to hear it worked smoothly in Japan & South Korea. Come back anytime! — Ken, eSIM TopUp Support
Elena G.
India · Jun 2025
Worked fine but took a little while to connect at first. Topping up was straightforward when I needed more.
Tom
GotoeSIM Support
· 1 year ago Appreciate you sharing this, Elena. Glad it mostly worked for you in Japan & South Korea — we're always improving our coverage. Any questions, our team is at esimtopup.io/support. — Tom
Isabella P.
Australia · Jun 2025
Installed in minutes by scanning the QR code. Coverage was strong even outside the city. A must-have for international travel.
Sara
GotoeSIM Support
· 1 year ago Cheers, Isabella! Love that you were online the moment you landed in Japan & South Korea. – Sara 💜
Giulia D.
Singapore · Jun 2025
Exactly what I needed for travelling in Japan & South Korea. Data lasted the whole trip with room to spare. A must-have for international travel.
Laura
GotoeSIM Support
· 1 year ago Thanks for sharing, Giulia! Great to know the setup was quick and easy. Enjoy your journeys! – Laura, eSIM TopUp Support
Thomas M.
Singapore · May 2025
Great value compared to roaming charges. Activation was automatic when I arrived. Will use eSIM TopUp for my next trip for sure.
Emma
GotoeSIM Support
· 1 year ago Thanks for sharing, Thomas! Great to know the setup was quick and easy. – Emma, eSIM TopUp Support
Arjun D.
South Korea · May 2025
Great value compared to roaming charges. Setup instructions in the app were clear and simple. Exactly as described — no surprises.
David
GotoeSIM Support
· 1 year ago Really appreciate this, Arjun! Thrilled it made staying connected effortless. Wishing you many more connected adventures! – David, eSIM TopUp Support
Fatima B.
Turkey · May 2025
Super easy to set up before I flew out. Setup instructions in the app were clear and simple. Would definitely buy again.
Grace
GotoeSIM Support
· 1 year ago Really appreciate this, Fatima! Great to know the setup was quick and easy. – Grace 💜
Diego M.
Saudi Arabia · May 2025
Did the job without any drama. I kept my normal number for calls while using this for data. Made staying connected effortless.
Diego
GotoeSIM Support
· 1 year ago Thank you so much, Diego! Thrilled it made staying connected effortless. We're here whenever you travel again. – Diego, eSIM TopUp Support
Carlos H.
Switzerland · May 2025
No more hunting for a SIM card kiosk on arrival. Activation was automatic when I arrived. Great experience overall.
Diego
GotoeSIM Support
· 1 year ago Thank you for the kind words, Carlos! Delighted the speeds worked well for you. We're here whenever you travel again. — Diego, eSIM TopUp Support
Nadia S.
Philippines · May 2025
Exactly what I needed for travelling. Activation was automatic when I arrived. Great experience overall.
Grace
GotoeSIM Support
· 1 year ago Really appreciate this, Nadia! So happy the Japan & South Korea eSIM kept you connected. — Grace
Diego V.
Turkey · May 2025
Connected the moment I landed. Speeds were solid for maps, messaging and browsing.
David
GotoeSIM Support
· 1 year ago Really appreciate this, Diego! Delighted the speeds worked well for you. Enjoy your journeys! – David, eSIM TopUp Support
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?