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
Marco M.
Spain · Jun 2026
Solid overall, just wish there was a bit more data for the price.
Emma
GotoeSIM Support
· 2 months ago Apologies for the trouble, Marco. That's not the experience we want for Japan & South Korea. Reach our team at esimtopup.io/support so we can help right away. — Emma
Daniel K.
Germany · Sep 2025
Decent speeds, though slower than I expected in a few spots. Customer support answered my question quickly.
Omar
GotoeSIM Support
· 10 months ago We're really sorry, Daniel. That's not the experience we want for Japan & South Korea. Reach our team at esimtopup.io/support so we can help right away. – Omar, eSIM TopUp Support
Daniel G.
New Zealand · Apr 2025
Install took me two tries but was fine after that. Topping up was straightforward when I needed more.
Yuki
GotoeSIM Support
· 1 year ago So sorry to hear this, Daniel. This isn't the standard we aim for. Reach our team at esimtopup.io/support so we can help right away. – Yuki 💜
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?