Japan & South Korea 10GB/Day eSIM Reviews & Details — 4.5★

Coverage & networks

Japan KDDI/au 5G
South Korea SKTelecom 5G LG Uplus 5G

Traveller reviews

All 5★ 4★ 3★ 2★ 1★

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Max B.

Australia · Dec 2025

✓ Verified

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 💜

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

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Sven N. · 4 weeks ago

Which networks does this connect to?

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Ryan W. · 2 months ago

Does the validity start on purchase or on first use?

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Fatima G. · 3 months ago

Can I use this for hotspot/tethering?

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James C. · 4 months ago

Do I need to install it before I travel or after I arrive?

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Ji-woo H. · 6 months ago

Is 5G supported or just 4G?

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Sven S. · 6 months ago

How long does the QR code take to arrive after payment?

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Zoe G. · 7 months ago

Is roaming charged extra or is it all included?

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Lea F. · 7 months ago

How do I check how much data I have left?

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Omar P. · 9 months ago

Can I use it in nearby countries too?

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Thomas M. · 10 months ago

Does this work on an iPhone 13?

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Pablo B. · 1 year ago

Great guide, the setup steps were really helpful.

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Mohammed N. · 1 year ago

Thanks, installed with no problems on my Samsung.