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
Lea W.
Poland · May 2025
First time using an eSIM and it was painless. Speeds were solid for maps, messaging and browsing.
Ingrid
GotoeSIM Support
· 1 year ago Cheers, Lea! So happy the Japan & South Korea eSIM kept you connected. – Ingrid 💜
Isabella H.
Thailand · May 2025
Installed in minutes by scanning the QR code. The QR code arrived instantly by email. Five stars from me.
Ken
GotoeSIM Support
· 1 year ago Really appreciate this, Isabella! So pleased it saved you from roaming bills. Safe travels, and see you on your next trip! — Ken
Sophia R.
Netherlands · May 2025
No more hunting for a SIM card kiosk on arrival. Activation was automatic when I arrived. A must-have for international travel.
Omar
GotoeSIM Support
· 1 year ago Thank you for the kind words, Sophia! Thrilled it made staying connected effortless. Come back anytime! — Omar
Diego D.
Vietnam · May 2025
Exactly what I needed for travelling. Topping up was straightforward when I needed more.
Ingrid
GotoeSIM Support
· 1 year ago Thank you so much, Diego! Wonderful to hear it worked smoothly in Japan & South Korea. Safe travels, and see you on your next trip! — Ingrid
Lea P.
Australia · May 2025
Install took me two tries but was fine after that. Customer support answered my question quickly.
Diego
GotoeSIM Support
· 1 year ago Appreciate you sharing this, Lea. We're constantly optimising speeds and coverage across Japan & South Korea. Reach us anytime at esimtopup.io/support if we can help. – Diego 💜
Sophia R.
France · May 2025
Connected the moment I landed. Streaming and video calls worked without buffering.
Tom
GotoeSIM Support
· 1 year ago Thank you so much, Sophia! Delighted the speeds worked well for you. Safe travels, and see you on your next trip! – Tom, eSIM TopUp Support
Elena T.
Singapore · May 2025
Bought it the night before my flight — smooth process. Activation was automatic when I arrived.
Tom
GotoeSIM Support
· 1 year ago Really appreciate this, Elena! Delighted the speeds worked well for you. – Tom 💜
Min-jun C.
Malaysia · May 2025
Saved me a fortune on my holiday. Setup instructions in the app were clear and simple.
Emma
GotoeSIM Support
· 1 year ago Thanks a lot, Min-jun! Great to know the setup was quick and easy. Wishing you many more connected adventures! — Emma, eSIM TopUp Support
Ravi P.
Canada · May 2025
First time using an eSIM and it was painless in Japan & South Korea. The QR code arrived instantly by email. Zero regrets.
Grace
GotoeSIM Support
· 1 year ago Thank you so much, Ravi! Delighted the speeds worked well for you. – Grace, eSIM TopUp Support
Viktor L.
Vietnam · May 2025
First time using an eSIM and it was painless in Japan & South Korea. Signal held up well on trains and in rural areas. Zero regrets.
Emma
GotoeSIM Support
· 1 year ago Really appreciate this, Viktor! Delighted the speeds worked well for you. Wishing you many more connected adventures! – Emma 💜
Nguyen R.
New Zealand · May 2025
No more hunting for a SIM card kiosk on arrival. Setup instructions in the app were clear and simple.
Sophie
GotoeSIM Support
· 1 year ago Thanks a lot, Nguyen! Love that you were online the moment you landed in Japan & South Korea. Wishing you many more connected adventures! – Sophie 💜
Hana D.
Malaysia · May 2025
Solid overall, just wish there was a bit more data for the price.
Sara
GotoeSIM Support
· 1 year ago Appreciate you sharing this, Hana. We're constantly optimising speeds and coverage across Japan & South Korea. Any questions, our team is at esimtopup.io/support. – Sara 💜
Nguyen G.
United Kingdom · May 2025
Connected the moment I landed. Streaming and video calls worked without buffering.
Ingrid
GotoeSIM Support
· 1 year ago Thanks a lot, Nguyen! Love that you were online the moment you landed in Japan & South Korea. Safe travels, and see you on your next trip! – Ingrid 💜
Sophia C.
New Zealand · May 2025
Did the job without any drama. Signal held up well on trains and in rural areas.
Emma
GotoeSIM Support
· 1 year ago Thanks a lot, Sophia! So pleased it saved you from roaming bills. Safe travels, and see you on your next trip! – Emma 💜
Fatima L.
Spain · May 2025
Connected the moment I landed in Japan & South Korea. Data lasted the whole trip with room to spare.
David
GotoeSIM Support
· 1 year ago Thank you so much, Fatima! So happy the Japan & South Korea eSIM kept you connected. We're here whenever you travel again. – 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?