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
Grace R.
Singapore · Oct 2024
Exactly what I needed for travelling. Data lasted the whole trip with room to spare.
Sophie
eSIM TopUp Support
· 1 year ago So glad to hear this, Grace! Wonderful to hear it worked smoothly in Japan & South Korea. – Sophie, eSIM TopUp Support
Ethan T.
Australia · Oct 2024
Used this on my trip and it worked perfectly. Coverage was strong even outside the city. Zero regrets.
Omar
eSIM TopUp Support
· 1 year ago Thanks for sharing, Ethan! Great to know the setup was quick and easy. Wishing you many more connected adventures! – Omar 💜
Noah N.
Vietnam · Oct 2024
Great value compared to roaming charges. Ran hotspot to my laptop with no issues. A must-have for international travel.
Anna
eSIM TopUp Support
· 1 year ago Thank you for the kind words, Noah! Great to know the setup was quick and easy. Come back anytime! — Anna
Ananya K.
Ireland · Oct 2024
Good coverage in the city, a bit patchy in remote areas.
Yuki
eSIM TopUp Support
· 1 year ago Thank you for taking the time, Ananya. 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. – Yuki 💜
Pablo R.
Poland · Oct 2024
No more hunting for a SIM card kiosk on arrival. The QR code arrived instantly by email. Will use eSIM TopUp for my next trip for sure.
Priya
eSIM TopUp Support
· 1 year ago Thanks a lot, Pablo! Wonderful to hear it worked smoothly in Japan & South Korea. Enjoy your journeys! — Priya
Wei K.
Sweden · Oct 2024
Great value compared to roaming charges. Activation was automatic when I arrived.
Mark
eSIM TopUp Support
· 1 year ago Really appreciate this, Wei! So pleased it saved you from roaming bills. — Mark, eSIM TopUp Support
Pablo K.
Indonesia · Oct 2024
Connected the moment I landed. Coverage was strong even outside the city.
Sara
eSIM TopUp Support
· 1 year ago Thanks for sharing, Pablo! Great to know the setup was quick and easy. Wishing you many more connected adventures! — Sara, eSIM TopUp Support
Grace L.
Indonesia · Oct 2024
Did the job without any drama in Japan & South Korea. Topping up was straightforward when I needed more. Telling my friends about this.
Sara
eSIM TopUp Support
· 1 year ago Thank you so much, Grace! Delighted the speeds worked well for you. We're here whenever you travel again. – Sara 💜
Louis V.
Indonesia · Oct 2024
Saved me a fortune on my holiday. Signal held up well on trains and in rural areas. Made staying connected effortless.
Anna
eSIM TopUp Support
· 1 year ago Thank you so much, Louis! Love that you were online the moment you landed in Japan & South Korea. – Anna, eSIM TopUp Support
Giulia L.
UAE · Oct 2024
Saved me a fortune on my holiday. Coverage was strong even outside the city. Telling my friends about this.
Emma
eSIM TopUp Support
· 1 year ago So glad to hear this, Giulia! 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
Ava G.
Poland · Oct 2024
Solid overall, just wish there was a bit more data for the price. Coverage was strong even outside the city.
Sophie
eSIM TopUp Support
· 1 year ago Thank you for taking the time, Ava. 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. — Sophie, eSIM TopUp Support
Ji-woo B.
Poland · Oct 2024
Saved me a fortune on my holiday. Setup instructions in the app were clear and simple. Will use eSIM TopUp for my next trip for sure.
Ken
eSIM TopUp Support
· 1 year ago Cheers, Ji-woo! So pleased it saved you from roaming bills. – Ken 💜
Zoe W.
Vietnam · Oct 2024
Exactly what I needed for travelling. I kept my normal number for calls while using this for data. Great experience overall.
Emma
eSIM TopUp Support
· 1 year ago Thank you so much, Zoe! Thrilled it made staying connected effortless. — Emma, eSIM TopUp Support
Ji-woo R.
Portugal · Oct 2024
Great value compared to roaming charges. Topping up was straightforward when I needed more. Would definitely buy again.
Tom
eSIM TopUp Support
· 1 year ago Cheers, Ji-woo! Wonderful to hear it worked smoothly in Japan & South Korea. Wishing you many more connected adventures! — Tom, eSIM TopUp Support
Sophia F.
New Zealand · Oct 2024
Bought it the night before my flight — smooth process in Japan & South Korea. Coverage was strong even outside the city. A must-have for international travel.
Mark
eSIM TopUp Support
· 1 year ago Thanks for sharing, Sophia! Wonderful to hear it worked smoothly in Japan & South Korea. – Mark, 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?