Japan & South Korea eSIM — reviews & details
Japan & South Korea 10GB/Day · 10 GB/day · 1 days
620 reviews
Coverage & networks
- Japan KDDI/au 5G
- South Korea SKTelecom 5G LG Uplus 5G
Traveller reviews
Viktor S.
Poland · Dec 2025
Exactly what I needed for travelling. Coverage was strong even outside the city. A must-have for international travel.
Omar
GotoeSIM Support
· 7 months ago Thank you so much, Viktor! So pleased it saved you from roaming bills. – Omar, eSIM TopUp Support
Max R.
Switzerland · Dec 2025
First time using an eSIM and it was painless. The QR code arrived instantly by email. Great experience overall.
Ingrid
GotoeSIM Support
· 7 months ago So glad to hear this, Max! Love that you were online the moment you landed in Japan & South Korea. — Ingrid
Ravi P.
Philippines · Dec 2025
Used this on my trip and it worked perfectly. Speeds were solid for maps, messaging and browsing.
Yuki
GotoeSIM Support
· 7 months ago Thank you so much, Ravi! Thrilled it made staying connected effortless. We're here whenever you travel again. – Yuki, eSIM TopUp Support
Max K.
Ireland · Dec 2025
Bought it the night before my flight — smooth process. Customer support answered my question quickly. Would definitely buy again.
Diego
GotoeSIM Support
· 7 months ago Really appreciate this, Max! Thrilled it made staying connected effortless. Wishing you many more connected adventures! — Diego
Somchai N.
New Zealand · Dec 2025
Did the job without any drama in Japan & South Korea. Speeds were solid for maps, messaging and browsing.
Diego
GotoeSIM Support
· 7 months ago Thanks for sharing, Somchai! So pleased it saved you from roaming bills. Enjoy your journeys! – Diego 💜
Max B.
Australia · Dec 2025
Decent speeds, though slower than I expected in a few spots. Signal held up well on trains and in rural areas.
Grace
GotoeSIM Support
· 7 months ago So sorry to hear this, Max. That's not the experience we want for Japan & South Korea. Reach our team at esimtopup.io/support so we can help right away. – Grace 💜
Andre H.
Spain · Dec 2025
Decent speeds, though slower than I expected in a few spots.
Yuki
GotoeSIM Support
· 7 months ago Thank you for taking the time, Andre. 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. – Yuki, eSIM TopUp Support
Kenji P.
Indonesia · Dec 2025
Installed in minutes by scanning the QR code. Data lasted the whole trip with room to spare. Would definitely buy again.
Mark
GotoeSIM Support
· 7 months ago Thank you for the kind words, Kenji! Thrilled it made staying connected effortless. We're here whenever you travel again. – Mark, eSIM TopUp Support
Andre D.
Ireland · Dec 2025
Super easy to set up before I flew out. Activation was automatic when I arrived.
Tom
GotoeSIM Support
· 7 months ago Thank you so much, Andre! Thrilled it made staying connected effortless. — Tom
Beatriz M.
South Korea · Dec 2025
Install took me two tries but was fine after that. Streaming and video calls worked without buffering.
Omar
GotoeSIM Support
· 7 months ago Thank you for taking the time, Beatriz. We're constantly optimising speeds and coverage across Japan & South Korea. Any questions, our team is at esimtopup.io/support. — Omar
Zoe S.
Portugal · Dec 2025
Exactly what I needed for travelling. Customer support answered my question quickly. Exactly as described — no surprises.
Laura
GotoeSIM Support
· 8 months ago Really appreciate this, Zoe! Great to know the setup was quick and easy. — Laura, eSIM TopUp Support
Viktor K.
France · Dec 2025
Great value compared to roaming charges. I kept my normal number for calls while using this for data. Telling my friends about this.
Sophie
GotoeSIM Support
· 8 months ago So glad to hear this, Viktor! Delighted the speeds worked well for you. We're here whenever you travel again. — Sophie
Aisha C.
Spain · Dec 2025
Did the job without any drama. Speeds were solid for maps, messaging and browsing. Made staying connected effortless.
Grace
GotoeSIM Support
· 8 months ago Thanks for sharing, Aisha! Wonderful to hear it worked smoothly in Japan & South Korea. — Grace
Daniel B.
Netherlands · Dec 2025
Honestly better than buying a local SIM at the airport in Japan & South Korea. Ran hotspot to my laptop with no issues. Made staying connected effortless.
Priya
GotoeSIM Support
· 8 months ago So glad to hear this, Daniel! Wonderful to hear it worked smoothly in Japan & South Korea. We're here whenever you travel again. – Priya, eSIM TopUp Support
Noah H.
Philippines · Dec 2025
Exactly what I needed for travelling in Japan & South Korea. Streaming and video calls worked without buffering. Made staying connected effortless.
Ingrid
GotoeSIM Support
· 8 months ago Thank you so much, Noah! So happy the Japan & South Korea eSIM kept you connected. – Ingrid, eSIM TopUp Support
Frequently asked questions
How much does the Japan & South Korea eSIM cost?
The Japan & South Korea 10GB/Day plan costs $14.18 for 10 GB/day over 1 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
Sven N. · 4 weeks ago
Which networks does this connect to?
Ryan W. · 2 months ago
Does the validity start on purchase or on first use?
Fatima G. · 3 months ago
Can I use this for hotspot/tethering?
James C. · 4 months ago
Do I need to install it before I travel or after I arrive?
Ji-woo H. · 6 months ago
Is 5G supported or just 4G?
Sven S. · 6 months ago
How long does the QR code take to arrive after payment?
Zoe G. · 7 months ago
Is roaming charged extra or is it all included?
Lea F. · 7 months ago
How do I check how much data I have left?
Omar P. · 9 months ago
Can I use it in nearby countries too?
Thomas M. · 10 months ago
Does this work on an iPhone 13?
Pablo B. · 1 year ago
Great guide, the setup steps were really helpful.
Mohammed N. · 1 year ago
Thanks, installed with no problems on my Samsung.