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
Ingrid N.
Switzerland · Jul 2025
Great value compared to roaming charges. Signal held up well on trains and in rural areas. Will use eSIM TopUp for my next trip for sure.
Laura
GotoeSIM Support
· 1 year ago Thank you for the kind words, Ingrid! Great to know the setup was quick and easy. Safe travels, and see you on your next trip! — Laura
Lucas L.
Mexico · Jul 2025
Installed in minutes by scanning the QR code. Data lasted the whole trip with room to spare.
James
GotoeSIM Support
· 1 year ago So glad to hear this, Lucas! Love that you were online the moment you landed in Japan & South Korea. Come back anytime! – James 💜
Louis R.
Singapore · Jul 2025
Bought it the night before my flight — smooth process. Topping up was straightforward when I needed more. Telling my friends about this.
James
GotoeSIM Support
· 1 year ago Thank you so much, Louis! Great to know the setup was quick and easy. Wishing you many more connected adventures! – James 💜
Omar H.
Thailand · Jul 2025
Solid overall, just wish there was a bit more data for the price. Customer support answered my question quickly.
Mark
GotoeSIM Support
· 1 year ago Thank you for taking the time, Omar. 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. – Mark, eSIM TopUp Support
Ravi V.
Sweden · Jul 2025
Bought it the night before my flight — smooth process. Customer support answered my question quickly. A must-have for international travel.
Grace
GotoeSIM Support
· 1 year ago Thanks for sharing, Ravi! Love that you were online the moment you landed in Japan & South Korea. We're here whenever you travel again. — Grace, eSIM TopUp Support
Ji-woo P.
Mexico · Jul 2025
Did the job without any drama. Signal held up well on trains and in rural areas. Exactly as described — no surprises.
Omar
GotoeSIM Support
· 1 year ago So glad to hear this, Ji-woo! Love that you were online the moment you landed in Japan & South Korea. Come back anytime! – Omar 💜
Liam B.
Portugal · Jul 2025
Connected the moment I landed in Japan & South Korea. Signal held up well on trains and in rural areas. Great experience overall.
Ingrid
GotoeSIM Support
· 1 year ago Thank you so much, Liam! Thrilled it made staying connected effortless. Come back anytime! – Ingrid 💜
Chloe K.
Italy · Jul 2025
Used this on my trip and it worked perfectly in Japan & South Korea. Setup instructions in the app were clear and simple. Will use eSIM TopUp for my next trip for sure.
Sophie
GotoeSIM Support
· 1 year ago Thank you for the kind words, Chloe! So happy the Japan & South Korea eSIM kept you connected. Wishing you many more connected adventures! — Sophie, eSIM TopUp Support
Thomas B.
Singapore · Jul 2025
Honestly better than buying a local SIM at the airport in Japan & South Korea. Data lasted the whole trip with room to spare. Five stars from me.
Sophie
GotoeSIM Support
· 1 year ago Thanks for sharing, Thomas! So happy the Japan & South Korea eSIM kept you connected. Enjoy your journeys! — Sophie, eSIM TopUp Support
Hugo R.
France · Jul 2025
First time using an eSIM and it was painless in Japan & South Korea. Data lasted the whole trip with room to spare. A must-have for international travel.
Emma
GotoeSIM Support
· 1 year ago So glad to hear this, Hugo! So pleased it saved you from roaming bills. Safe travels, and see you on your next trip! – Emma, eSIM TopUp Support
Ji-woo P.
United States · Jul 2025
No more hunting for a SIM card kiosk on arrival. I kept my normal number for calls while using this for data. Made staying connected effortless.
Priya
GotoeSIM Support
· 1 year ago Thank you so much, Ji-woo! Thrilled it made staying connected effortless. Come back anytime! – Priya 💜
Priya K.
Mexico · Jul 2025
Installed in minutes by scanning the QR code. Setup instructions in the app were clear and simple. Great experience overall.
Laura
GotoeSIM Support
· 1 year ago Thank you so much, Priya! So pleased it saved you from roaming bills. — Laura
Yuki G.
Malaysia · Jul 2025
First time using an eSIM and it was painless. Activation was automatic when I arrived.
Diego
GotoeSIM Support
· 1 year ago Thank you for the kind words, Yuki! Thrilled it made staying connected effortless. Wishing you many more connected adventures! – Diego 💜
Elena R.
Egypt · Jul 2025
Installed in minutes by scanning the QR code. Streaming and video calls worked without buffering. Will use eSIM TopUp for my next trip for sure.
Ken
GotoeSIM Support
· 1 year ago Thank you for the kind words, Elena! Thrilled it made staying connected effortless. Wishing you many more connected adventures! — Ken, eSIM TopUp Support
Louis C.
Singapore · Jul 2025
Connected the moment I landed. Speeds were solid for maps, messaging and browsing. Telling my friends about this.
Anna
GotoeSIM Support
· 1 year ago Thanks for sharing, Louis! Thrilled it made staying connected effortless. Wishing you many more connected adventures! — Anna, 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?