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
Somchai D.
Germany · Feb 2025
Used this on my trip and it worked perfectly in Japan & South Korea. The QR code arrived instantly by email.
Priya
eSIM TopUp Support
· 1 year ago Thank you for the kind words, Somchai! Love that you were online the moment you landed in Japan & South Korea. — Priya
Lea W.
Turkey · Feb 2025
Connected the moment I landed in Japan & South Korea. Ran hotspot to my laptop with no issues.
Sara
eSIM TopUp Support
· 1 year ago So glad to hear this, Lea! So happy the Japan & South Korea eSIM kept you connected. Come back anytime! — Sara, eSIM TopUp Support
Fatima F.
India · Feb 2025
Saved me a fortune on my holiday. I kept my normal number for calls while using this for data. Five stars from me.
Sara
eSIM TopUp Support
· 1 year ago Thanks for sharing, Fatima! So pleased it saved you from roaming bills. — Sara
Pablo N.
Mexico · Feb 2025
Saved me a fortune on my holiday in Japan & South Korea. Streaming and video calls worked without buffering. A must-have for international travel.
Sophie
eSIM TopUp Support
· 1 year ago Really appreciate this, Pablo! Wonderful to hear it worked smoothly in Japan & South Korea. – Sophie, eSIM TopUp Support
Somchai R.
South Korea · Feb 2025
No more hunting for a SIM card kiosk on arrival. Setup instructions in the app were clear and simple. Made staying connected effortless.
Omar
eSIM TopUp Support
· 1 year ago Really appreciate this, Somchai! Love that you were online the moment you landed in Japan & South Korea. We're here whenever you travel again. — Omar
Hana S.
India · Feb 2025
Connected the moment I landed in Japan & South Korea. Topping up was straightforward when I needed more. Telling my friends about this.
Diego
eSIM TopUp Support
· 1 year ago Cheers, Hana! Great to know the setup was quick and easy. Enjoy your journeys! — Diego, eSIM TopUp Support
Ryan F.
Malaysia · Feb 2025
Decent speeds, though slower than I expected in a few spots.
Grace
eSIM TopUp Support
· 1 year ago Appreciate you sharing this, Ryan. 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. – Grace 💜
Katya R.
India · Feb 2025
Connected the moment I landed in Japan & South Korea. Setup instructions in the app were clear and simple. Will use eSIM TopUp for my next trip for sure.
Omar
eSIM TopUp Support
· 1 year ago Thanks a lot, Katya! Delighted the speeds worked well for you. We're here whenever you travel again. – Omar, eSIM TopUp Support
Wei B.
Thailand · Feb 2025
Exactly what I needed for travelling. Speeds were solid for maps, messaging and browsing. A must-have for international travel.
Ken
eSIM TopUp Support
· 1 year ago Thanks for sharing, Wei! Great to know the setup was quick and easy. – Ken 💜
Isabella P.
India · Feb 2025
Decent speeds, though slower than I expected in a few spots. Topping up was straightforward when I needed more.
Ken
eSIM TopUp Support
· 1 year ago We're really sorry, Isabella. That's not the experience we want for Japan & South Korea. Please contact us at esimtopup.io/support and we'll sort it out. – Ken 💜
Katya W.
New Zealand · Feb 2025
Installed in minutes by scanning the QR code. Streaming and video calls worked without buffering. A must-have for international travel.
Priya
eSIM TopUp Support
· 1 year ago Thank you so much, Katya! Thrilled it made staying connected effortless. Wishing you many more connected adventures! — Priya
Sven T.
Mexico · Feb 2025
Honestly better than buying a local SIM at the airport. Coverage was strong even outside the city.
Emma
eSIM TopUp Support
· 1 year ago Thanks a lot, Sven! Thrilled it made staying connected effortless. Come back anytime! – Emma 💜
Lucia R.
Japan · Feb 2025
Good coverage in the city, a bit patchy in remote areas. Coverage was strong even outside the city.
Yuki
eSIM TopUp Support
· 1 year ago Appreciate you sharing this, Lucia. 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. — Yuki
Ji-woo H.
Egypt · Feb 2025
Honestly better than buying a local SIM at the airport. Signal held up well on trains and in rural areas. Would definitely buy again.
Tom
eSIM TopUp Support
· 1 year ago Thank you for the kind words, Ji-woo! Great to know the setup was quick and easy. Come back anytime! – Tom, eSIM TopUp Support
Sofia V.
Netherlands · Feb 2025
First time using an eSIM and it was painless. Signal held up well on trains and in rural areas.
Priya
eSIM TopUp Support
· 1 year ago Thank you for the kind words, Sofia! Love that you were online the moment you landed in Japan & South Korea. Wishing you many more connected adventures! — Priya
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?