Japan & South Korea eSIM — reviews & details
Japan & South Korea 1GB/Day · 1 GB/day · 1 days
620 reviews
Coverage & networks
- Japan KDDI/au 5G
- South Korea SKTelecom 5G LG Uplus 5G
Traveller reviews
Ava C.
Netherlands · Apr 2026
Installed in minutes by scanning the QR code. Signal held up well on trains and in rural areas. Would definitely buy again.
Emma
GotoeSIM Support
· 3 months ago Thanks a lot, Ava! Wonderful to hear it worked smoothly in Japan & South Korea. Safe travels, and see you on your next trip! — Emma
Isabella R.
Saudi Arabia · Apr 2026
Installed in minutes by scanning the QR code. Activation was automatic when I arrived in Japan & South Korea.
Sophie
GotoeSIM Support
· 3 months ago Really appreciate this, Isabella! Great to know the setup was quick and easy. Enjoy your journeys! — Sophie, eSIM TopUp Support
Isabella S.
Sweden · Apr 2026
Used this on my trip and it worked perfectly in Japan & South Korea. Data lasted the whole trip with room to spare. Zero regrets.
Diego
GotoeSIM Support
· 3 months ago Thank you for the kind words, Isabella! Love that you were online the moment you landed in Japan & South Korea. Come back anytime! – Diego 💜
Linh B.
Egypt · Apr 2026
First time using an eSIM and it was painless. I kept my normal number for calls while using this for data.
Omar
GotoeSIM Support
· 4 months ago So glad to hear this, Linh! So pleased it saved you from roaming bills. We're here whenever you travel again. – Omar, eSIM TopUp Support
Linh S.
South Korea · Apr 2026
Connected the moment I landed in Japan & South Korea. Coverage was strong even outside the city. Highly recommend for any traveller.
Grace
GotoeSIM Support
· 4 months ago Thanks a lot, Linh! Great to know the setup was quick and easy. Enjoy your journeys! — Grace, eSIM TopUp Support
Sofia L.
Switzerland · Apr 2026
Great value compared to roaming charges. Data lasted the whole trip with room to spare. A must-have for international travel.
Ingrid
GotoeSIM Support
· 4 months ago Really appreciate this, Sofia! So happy the Japan & South Korea eSIM kept you connected. Come back anytime! — Ingrid
Yuki S.
France · Apr 2026
Decent speeds, though slower than I expected in a few spots.
Grace
GotoeSIM Support
· 4 months ago We're really sorry, Yuki. That's not the experience we want for Japan & South Korea. Please contact us at esimtopup.io/support and we'll sort it out. – Grace, eSIM TopUp Support
Pablo C.
Japan · Apr 2026
Honestly better than buying a local SIM at the airport. I kept my normal number for calls while using this for data. Five stars from me.
Ingrid
GotoeSIM Support
· 4 months ago Really appreciate this, Pablo! Great to know the setup was quick and easy. Enjoy your journeys! – Ingrid, eSIM TopUp Support
Min-jun H.
Singapore · Apr 2026
Bought it the night before my flight — smooth process. Streaming and video calls worked without buffering.
Sophie
GotoeSIM Support
· 4 months ago Thank you so much, Min-jun! So pleased it saved you from roaming bills. — Sophie
Ingrid V.
Egypt · Apr 2026
Super easy to set up before I flew out. Ran hotspot to my laptop with no issues.
David
GotoeSIM Support
· 4 months ago Thank you so much, Ingrid! Wonderful to hear it worked smoothly in Japan & South Korea. Wishing you many more connected adventures! — David, eSIM TopUp Support
Sofia G.
India · Apr 2026
Used this on my trip and it worked perfectly. Streaming and video calls worked without buffering. Five stars from me.
Ken
GotoeSIM Support
· 4 months ago Thank you so much, Sofia! So pleased it saved you from roaming bills. We're here whenever you travel again. — Ken, eSIM TopUp Support
Zoe R.
UAE · Apr 2026
Bought it the night before my flight — smooth process. Ran hotspot to my laptop with no issues.
Diego
GotoeSIM Support
· 4 months ago Really appreciate this, Zoe! Delighted the speeds worked well for you. We're here whenever you travel again. — Diego
Aisha T.
India · Apr 2026
Great value compared to roaming charges. Data lasted the whole trip with room to spare.
Emma
GotoeSIM Support
· 4 months ago Thanks a lot, Aisha! Great to know the setup was quick and easy. Safe travels, and see you on your next trip! — Emma
Camila T.
Brazil · Apr 2026
Saved me a fortune on my holiday. I kept my normal number for calls while using this for data.
Priya
GotoeSIM Support
· 4 months ago So glad to hear this, Camila! So happy the Japan & South Korea eSIM kept you connected. – Priya 💜
Diego N.
Germany · Apr 2026
Installed in minutes by scanning the QR code. Speeds were solid for maps, messaging and browsing.
Ken
GotoeSIM Support
· 4 months ago Thanks a lot, Diego! Delighted the speeds worked well for you. We're here whenever you travel again. – Ken 💜
Frequently asked questions
How much does the Japan & South Korea eSIM cost?
The Japan & South Korea 1GB/Day plan costs $2.03 for 1 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
Marco K. · 1 week ago
How long does the QR code take to arrive after payment?
Beatriz S. · 1 month ago
Does this work on an iPhone 13?
Budi D. · 3 months ago
Will this keep my WhatsApp active with my home number?
Lucas P. · 4 months ago
Is 5G supported or just 4G?
Grace B. · 6 months ago
Thanks, installed with no problems on my Samsung.
Liam L. · 6 months ago
Does the validity start on purchase or on first use?
Beatriz V. · 8 months ago
Which networks does this connect to?
Haruto G. · 9 months ago
Is roaming charged extra or is it all included?
Ryan N. · 9 months ago
Can I use it in nearby countries too?
Ava B. · 10 months ago
Do I need to install it before I travel or after I arrive?
Camila P. · 11 months ago
Can I top up the same eSIM instead of buying a new one?
Sofia B. · 11 months ago
Can I use this for hotspot/tethering?