Japan eSIM — reviews & details
Japan 3GB 15Days (IIJ) · 3 GB · 15 days
620 reviews
Coverage & networks
- Japan NTT docomo 4G
Traveller reviews
Pablo T.
Vietnam · Aug 2026
Super easy to set up before I flew out. Signal held up well on trains and in rural areas. A must-have for international travel.
Sara
eSIM TopUp Support
· 4 days ago Thank you so much, Pablo! So pleased it saved you from roaming bills. Enjoy your journeys! — Sara
Ananya R.
Germany · Aug 2026
Connected the moment I landed. Streaming and video calls worked without buffering. Five stars from me.
Mark
eSIM TopUp Support
· 1 week ago Thanks a lot, Ananya! Wonderful to hear it worked smoothly in Japan. We're here whenever you travel again. – Mark, eSIM TopUp Support
Arjun F.
South Korea · Aug 2026
Exactly what I needed for travelling. Streaming and video calls worked without buffering.
Laura
eSIM TopUp Support
· 1 week ago So glad to hear this, Arjun! So happy the Japan eSIM kept you connected. Wishing you many more connected adventures! — Laura
James R.
United Kingdom · Aug 2026
Did the job without any drama. Coverage was strong even outside the city.
Yuki
eSIM TopUp Support
· 1 week ago Thanks a lot, James! Love that you were online the moment you landed in Japan. — Yuki
James K.
United Kingdom · Aug 2026
Super easy to set up before I flew out in Japan. Setup instructions in the app were clear and simple. Highly recommend for any traveller.
Anna
eSIM TopUp Support
· 1 week ago Thanks a lot, James! Wonderful to hear it worked smoothly in Japan. – Anna, eSIM TopUp Support
Isabella L.
Switzerland · Jul 2026
Used this on my trip and it worked perfectly. Customer support answered my question quickly.
Ingrid
eSIM TopUp Support
· 1 week ago Cheers, Isabella! Delighted the speeds worked well for you. We're here whenever you travel again. – Ingrid, eSIM TopUp Support
Beatriz B.
Brazil · Jul 2026
Solid overall, just wish there was a bit more data for the price.
Mark
eSIM TopUp Support
· 2 weeks ago We're really sorry, Beatriz. We'd love the chance to make this right. Please contact us at esimtopup.io/support and we'll sort it out. — Mark
Viktor H.
New Zealand · Jul 2026
Worked fine but took a little while to connect at first. Data lasted the whole trip with room to spare.
Priya
eSIM TopUp Support
· 2 weeks ago Appreciate you sharing this, Viktor. 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. – Priya 💜
Louis V.
Singapore · Jul 2026
Installed in minutes by scanning the QR code. Setup instructions in the app were clear and simple. Great experience overall.
Ingrid
eSIM TopUp Support
· 2 weeks ago So glad to hear this, Louis! Love that you were online the moment you landed in Japan. We're here whenever you travel again. — Ingrid, eSIM TopUp Support
Liam M.
South Korea · Jul 2026
Exactly what I needed for travelling. I kept my normal number for calls while using this for data.
Yuki
eSIM TopUp Support
· 2 weeks ago So glad to hear this, Liam! Thrilled it made staying connected effortless. — Yuki
Andre K.
Saudi Arabia · Jul 2026
Did the job without any drama. Streaming and video calls worked without buffering. Telling my friends about this.
Tom
eSIM TopUp Support
· 3 weeks ago So glad to hear this, Andre! So happy the Japan eSIM kept you connected. Enjoy your journeys! – Tom 💜
Ryan B.
Netherlands · Jul 2026
Used this on my trip and it worked perfectly. Coverage was strong even outside the city. Made staying connected effortless.
Ingrid
eSIM TopUp Support
· 3 weeks ago So glad to hear this, Ryan! Wonderful to hear it worked smoothly in Japan. Wishing you many more connected adventures! – Ingrid, eSIM TopUp Support
Mohammed L.
Netherlands · Jul 2026
Saved me a fortune on my holiday. Setup instructions in the app were clear and simple.
Sophie
eSIM TopUp Support
· 3 weeks ago Really appreciate this, Mohammed! Thrilled it made staying connected effortless. Come back anytime! — Sophie, eSIM TopUp Support
Sven V.
Egypt · Jul 2026
Connected the moment I landed. Topping up was straightforward when I needed more.
Yuki
eSIM TopUp Support
· 3 weeks ago So glad to hear this, Sven! Wonderful to hear it worked smoothly in Japan. Come back anytime! – Yuki, eSIM TopUp Support
Zoe P.
Thailand · Jul 2026
Used this on my trip and it worked perfectly in Japan. Ran hotspot to my laptop with no issues.
Yuki
eSIM TopUp Support
· 4 weeks ago Thank you for the kind words, Zoe! So happy the Japan eSIM kept you connected. We're here whenever you travel again. — Yuki
Frequently asked questions
How much does the Japan eSIM cost?
The Japan 3GB 15Days (IIJ) plan costs $2.55 for 3 GB over 15 days, paid once with no hidden fees.
How do I activate my Japan 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.
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.
Comments & questions
Budi L. · 6 days ago
Does this work on an iPhone 13?
Sri M. · 3 weeks ago
Will this keep my WhatsApp active with my home number?
Andre D. · 3 months ago
Can I use it in nearby countries too?
Min-jun G. · 4 months ago
Can I top up the same eSIM instead of buying a new one?
Ava S. · 4 months ago
Is roaming charged extra or is it all included?
Emma T. · 4 months ago
Does the validity start on purchase or on first use?
Ravi W. · 5 months ago
Can I use this for hotspot/tethering?
Sofia H. · 5 months ago
Great guide, the setup steps were really helpful.
Lucas G. · 9 months ago
Is 5G supported or just 4G?
Mei N. · 9 months ago
Which networks does this connect to?
Omar P. · 9 months ago
Do I need to install it before I travel or after I arrive?
Olivia D. · 1 year ago
How long does the QR code take to arrive after payment?