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
Mateo T.
Indonesia · Jan 2025
Great value compared to roaming charges. Setup instructions in the app were clear and simple. Five stars from me.
Diego
GotoeSIM Support
· 1 year ago Really appreciate this, Mateo! So happy the Japan & South Korea eSIM kept you connected. Enjoy your journeys! – Diego, eSIM TopUp Support
Mei S.
Sweden · Jan 2025
Super easy to set up before I flew out. Customer support answered my question quickly.
Grace
GotoeSIM Support
· 1 year ago Really appreciate this, Mei! Thrilled it made staying connected effortless. – Grace, eSIM TopUp Support
Mateo T.
Sweden · Jan 2025
Bought it the night before my flight — smooth process in Japan & South Korea. Streaming and video calls worked without buffering.
Anna
GotoeSIM Support
· 1 year ago Thanks for sharing, Mateo! Delighted the speeds worked well for you. Come back anytime! — Anna, eSIM TopUp Support
Louis D.
Egypt · Jan 2025
Connected the moment I landed. Customer support answered my question quickly. Would definitely buy again.
Sara
GotoeSIM Support
· 1 year ago Really appreciate this, Louis! Thrilled it made staying connected effortless. Safe travels, and see you on your next trip! — Sara
Elena S.
Malaysia · Jan 2025
Connected the moment I landed. Ran hotspot to my laptop with no issues. Exactly as described — no surprises.
Laura
GotoeSIM Support
· 1 year ago So glad to hear this, Elena! Thrilled it made staying connected effortless. We're here whenever you travel again. — Laura, eSIM TopUp Support
Ji-woo L.
Netherlands · Jan 2025
Great value compared to roaming charges. The QR code arrived instantly by email. Great experience overall.
James
GotoeSIM Support
· 1 year ago Thanks a lot, Ji-woo! Great to know the setup was quick and easy. – James, eSIM TopUp Support
Mateo V.
Portugal · Jan 2025
Did the job without any drama. I kept my normal number for calls while using this for data. Telling my friends about this.
Sophie
GotoeSIM Support
· 1 year ago So glad to hear this, Mateo! Wonderful to hear it worked smoothly in Japan & South Korea. Come back anytime! – Sophie, eSIM TopUp Support
Wei V.
Malaysia · Jan 2025
Exactly what I needed for travelling. Speeds were solid for maps, messaging and browsing. Exactly as described — no surprises.
Tom
GotoeSIM Support
· 1 year ago Cheers, Wei! Love that you were online the moment you landed in Japan & South Korea. Enjoy your journeys! – Tom 💜
Sophia C.
Brazil · Jan 2025
Saved me a fortune on my holiday in Japan & South Korea. Topping up was straightforward when I needed more. Made staying connected effortless.
Emma
GotoeSIM Support
· 1 year ago So glad to hear this, Sophia! Love that you were online the moment you landed in Japan & South Korea. Safe travels, and see you on your next trip! – Emma, eSIM TopUp Support
Zoe H.
France · Jan 2025
First time using an eSIM and it was painless. Customer support answered my question quickly. Made staying connected effortless.
Mark
GotoeSIM Support
· 1 year ago Thank you so much, Zoe! Great to know the setup was quick and easy. – Mark 💜
Sarah W.
Philippines · Jan 2025
Installed in minutes by scanning the QR code. Setup instructions in the app were clear and simple. Highly recommend for any traveller.
Laura
GotoeSIM Support
· 1 year ago Thanks a lot, Sarah! Thrilled it made staying connected effortless. Enjoy your journeys! – Laura, eSIM TopUp Support
Sophia G.
Sweden · Jan 2025
Good coverage in the city, a bit patchy in remote areas.
Sophie
GotoeSIM Support
· 1 year ago Thank you for taking the time, Sophia. We're constantly optimising speeds and coverage across Japan & South Korea. Any questions, our team is at esimtopup.io/support. — Sophie, eSIM TopUp Support
Anna T.
South Korea · Jan 2025
Exactly what I needed for travelling. Topping up was straightforward when I needed more.
Tom
GotoeSIM Support
· 1 year ago Really appreciate this, Anna! Love that you were online the moment you landed in Japan & South Korea. Come back anytime! – Tom, eSIM TopUp Support
Min-jun T.
Malaysia · Jan 2025
Install took me two tries but was fine after that.
James
GotoeSIM Support
· 1 year ago Appreciate you sharing this, Min-jun. 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. — James, eSIM TopUp Support
Ingrid F.
Vietnam · Jan 2025
Honestly better than buying a local SIM at the airport in Japan & South Korea. Streaming and video calls worked without buffering. Exactly as described — no surprises.
Ingrid
GotoeSIM Support
· 1 year ago Thank you for the kind words, Ingrid! Love that you were online the moment you landed in Japan & South Korea. Enjoy your journeys! – Ingrid, 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?