Japan & South Korea eSIM — reviews & details
Japan & South Korea 10GB 30days · 10 GB · 30 days
620 reviews
Coverage & networks
- Japan KDDI/au 5G
- South Korea SKTelecom 5G LG Uplus 5G
Traveller reviews
Mateo B.
Germany · May 2026
No more hunting for a SIM card kiosk on arrival. Coverage was strong even outside the city.
Yuki
GotoeSIM Support
· 2 months ago Thanks for sharing, Mateo! Delighted the speeds worked well for you. – Yuki, eSIM TopUp Support
Lucia H.
Portugal · May 2026
Great value compared to roaming charges. Coverage was strong even outside the city. Zero regrets.
Ken
GotoeSIM Support
· 2 months ago So glad to hear this, Lucia! Delighted the speeds worked well for you. Wishing you many more connected adventures! — Ken, eSIM TopUp Support
Ryan B.
Thailand · May 2026
Connected the moment I landed. Activation was automatic when I arrived. Made staying connected effortless.
Diego
GotoeSIM Support
· 2 months ago Cheers, Ryan! So happy the Japan & South Korea eSIM kept you connected. Come back anytime! — Diego, eSIM TopUp Support
Max R.
Poland · May 2026
Decent speeds, though slower than I expected in a few spots. Topping up was straightforward when I needed more.
Grace
GotoeSIM Support
· 2 months ago Thank you for taking the time, Max. 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. — Grace, eSIM TopUp Support
Anna N.
Ireland · May 2026
Used this on my trip and it worked perfectly. Topping up was straightforward when I needed more. Would definitely buy again.
Yuki
GotoeSIM Support
· 2 months ago Cheers, Anna! So pleased it saved you from roaming bills. We're here whenever you travel again. – Yuki, eSIM TopUp Support
James H.
Australia · May 2026
Connected the moment I landed. Data lasted the whole trip with room to spare. Five stars from me.
James
GotoeSIM Support
· 2 months ago Thank you so much, James! So happy the Japan & South Korea eSIM kept you connected. Come back anytime! – James 💜
Mateo R.
Germany · May 2026
Decent speeds, though slower than I expected in a few spots.
Grace
GotoeSIM Support
· 2 months ago Thanks for the honest feedback, Mateo. 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
Ingrid N.
New Zealand · May 2026
Bought it the night before my flight — smooth process. Data lasted the whole trip with room to spare. Telling my friends about this.
Priya
GotoeSIM Support
· 2 months ago So glad to hear this, Ingrid! So pleased it saved you from roaming bills. Come back anytime! — Priya, eSIM TopUp Support
Grace M.
Turkey · May 2026
Super easy to set up before I flew out. Ran hotspot to my laptop with no issues.
Grace
GotoeSIM Support
· 2 months ago So glad to hear this, Grace! Thrilled it made staying connected effortless. Wishing you many more connected adventures! — Grace
Sarah F.
UAE · May 2026
Used this on my trip and it worked perfectly. Streaming and video calls worked without buffering. Great experience overall.
Ken
GotoeSIM Support
· 2 months ago Thank you so much, Sarah! Thrilled it made staying connected effortless. Enjoy your journeys! — Ken
Anna K.
Malaysia · May 2026
Decent speeds, though slower than I expected in a few spots.
Ingrid
GotoeSIM Support
· 2 months ago Thank you for taking the time, Anna. 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. — Ingrid, eSIM TopUp Support
Mei V.
United States · May 2026
Installed in minutes by scanning the QR code. Speeds were solid for maps, messaging and browsing. Highly recommend for any traveller.
Ingrid
GotoeSIM Support
· 2 months ago So glad to hear this, Mei! So happy the Japan & South Korea eSIM kept you connected. Safe travels, and see you on your next trip! — Ingrid, eSIM TopUp Support
Kenji G.
Poland · May 2026
Great value compared to roaming charges. Streaming and video calls worked without buffering. Five stars from me.
Diego
GotoeSIM Support
· 2 months ago Cheers, Kenji! Great to know the setup was quick and easy. Safe travels, and see you on your next trip! — Diego
Mateo V.
Poland · May 2026
Connected the moment I landed. Speeds were solid for maps, messaging and browsing. Exactly as described — no surprises.
Mark
GotoeSIM Support
· 2 months ago So glad to hear this, Mateo! Great to know the setup was quick and easy. — Mark, eSIM TopUp Support
Noah T.
Spain · May 2026
First time using an eSIM and it was painless. Data lasted the whole trip with room to spare.
Mark
GotoeSIM Support
· 2 months ago Thank you so much, Noah! Delighted the speeds worked well for you. Safe travels, and see you on your next trip! – Mark, eSIM TopUp Support
Frequently asked questions
How much does the Japan & South Korea eSIM cost?
The Japan & South Korea 10GB 30days plan costs $19.20 for 10 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
Lea T. · 4 weeks ago
Can I top up the same eSIM instead of buying a new one?
Mohammed H. · 1 month ago
How long does the QR code take to arrive after payment?
Ji-woo R. · 3 months ago
Is roaming charged extra or is it all included?
Budi C. · 3 months ago
Can I use this for hotspot/tethering?
Arjun S. · 4 months ago
Does the validity start on purchase or on first use?
Sven R. · 5 months ago
Which networks does this connect to?
Sarah D. · 7 months ago
Can I use it in nearby countries too?
Mei B. · 7 months ago
Thanks, installed with no problems on my Samsung.
Wei T. · 7 months ago
Is 5G supported or just 4G?
Wei D. · 9 months ago
How do I check how much data I have left?
Isabella H. · 9 months ago
Great guide, the setup steps were really helpful.
Fatima K. · 1 year ago
Does this work on an iPhone 13?