Japan eSIM — reviews & details
Japan 5GB 30Days (IIJ) · 5 GB · 30 days
620 reviews
Coverage & networks
- Japan NTT docomo 4G
Traveller reviews
Min-jun S.
Indonesia · Aug 2026
Did the job without any drama. Signal held up well on trains and in rural areas.
Priya
eSIM TopUp Support
· 3 days ago Thank you for the kind words, Min-jun! Wonderful to hear it worked smoothly in Japan. — Priya
Emma H.
Indonesia · Aug 2026
Great value compared to roaming charges. Signal held up well on trains and in rural areas.
Tom
eSIM TopUp Support
· 3 days ago Really appreciate this, Emma! Wonderful to hear it worked smoothly in Japan. We're here whenever you travel again. — Tom, eSIM TopUp Support
Wei N.
Egypt · Aug 2026
Used this on my trip and it worked perfectly. I kept my normal number for calls while using this for data.
Diego
eSIM TopUp Support
· 1 week ago Really appreciate this, Wei! Delighted the speeds worked well for you. – Diego, eSIM TopUp Support
Min-jun T.
Poland · Aug 2026
Super easy to set up before I flew out. Ran hotspot to my laptop with no issues.
Yuki
eSIM TopUp Support
· 1 week ago Thank you so much, Min-jun! Thrilled it made staying connected effortless. Come back anytime! – Yuki 💜
Sophia W.
France · Jul 2026
Installed in minutes by scanning the QR code. I kept my normal number for calls while using this for data.
Sara
eSIM TopUp Support
· 1 week ago So glad to hear this, Sophia! Great to know the setup was quick and easy. Wishing you many more connected adventures! – Sara, eSIM TopUp Support
Lea R.
Philippines · Jul 2026
Installed in minutes by scanning the QR code. I kept my normal number for calls while using this for data. Telling my friends about this.
Laura
eSIM TopUp Support
· 2 weeks ago Thank you so much, Lea! Thrilled it made staying connected effortless. Wishing you many more connected adventures! — Laura
Arjun P.
Switzerland · Jul 2026
No more hunting for a SIM card kiosk on arrival. Streaming and video calls worked without buffering. Great experience overall.
James
eSIM TopUp Support
· 2 weeks ago Thanks for sharing, Arjun! So happy the Japan eSIM kept you connected. — James, eSIM TopUp Support
Marco R.
Germany · Jul 2026
Connected the moment I landed. I kept my normal number for calls while using this for data.
Mark
eSIM TopUp Support
· 2 weeks ago Thanks for sharing, Marco! Love that you were online the moment you landed in Japan. Wishing you many more connected adventures! – Mark, eSIM TopUp Support
Ava K.
Ireland · Jul 2026
Saved me a fortune on my holiday. Signal held up well on trains and in rural areas. Great experience overall.
Ingrid
eSIM TopUp Support
· 2 weeks ago So glad to hear this, Ava! Love that you were online the moment you landed in Japan. — Ingrid, eSIM TopUp Support
Haruto R.
UAE · Jul 2026
Bought it the night before my flight — smooth process. Activation was automatic when I arrived. Telling my friends about this.
Diego
eSIM TopUp Support
· 2 weeks ago So glad to hear this, Haruto! Delighted the speeds worked well for you. — Diego
Aisha H.
Turkey · Jul 2026
Used this on my trip and it worked perfectly. Ran hotspot to my laptop with no issues.
Laura
eSIM TopUp Support
· 2 weeks ago Thanks a lot, Aisha! Love that you were online the moment you landed in Japan. Safe travels, and see you on your next trip! — Laura
James P.
Portugal · Jul 2026
First time using an eSIM and it was painless in Japan. Setup instructions in the app were clear and simple.
Mark
eSIM TopUp Support
· 2 weeks ago Cheers, James! So happy the Japan eSIM kept you connected. Come back anytime! – Mark 💜
Elena M.
New Zealand · Jul 2026
Decent speeds, though slower than I expected in a few spots.
David
eSIM TopUp Support
· 3 weeks ago Appreciate you sharing this, Elena. Glad it mostly worked for you in Japan — we're always improving our coverage. Any questions, our team is at esimtopup.io/support. — David
Hugo F.
Vietnam · Jul 2026
Super easy to set up before I flew out. Speeds were solid for maps, messaging and browsing. Five stars from me.
Sophie
eSIM TopUp Support
· 3 weeks ago Thank you for the kind words, Hugo! Wonderful to hear it worked smoothly in Japan. Safe travels, and see you on your next trip! — Sophie, eSIM TopUp Support
Sarah P.
Singapore · Jul 2026
Great value compared to roaming charges. Activation was automatic when I arrived in Japan. Exactly as described — no surprises.
Anna
eSIM TopUp Support
· 3 weeks ago Thank you so much, Sarah! Great to know the setup was quick and easy. Come back anytime! – Anna, eSIM TopUp Support
Frequently asked questions
How much does the Japan eSIM cost?
The Japan 5GB 30Days (IIJ) plan costs $4.05 for 5 GB over 30 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
Sofia K. · 1 week ago
Do I need to install it before I travel or after I arrive?
Ravi V. · 1 month ago
Is roaming charged extra or is it all included?
Daniel C. · 3 months ago
How do I check how much data I have left?
James N. · 3 months ago
Does this work on an iPhone 13?
Nadia K. · 3 months ago
Can I top up the same eSIM instead of buying a new one?
Min-jun P. · 3 months ago
Does the validity start on purchase or on first use?
Aisha R. · 3 months ago
Can I use this for hotspot/tethering?
Nadia D. · 4 months ago
Thanks, installed with no problems on my Samsung.
Sri T. · 4 months ago
Is 5G supported or just 4G?
Diego V. · 4 months ago
Can I use it in nearby countries too?
Liam G. · 5 months ago
Great guide, the setup steps were really helpful.
Ava F. · 10 months ago
How long does the QR code take to arrive after payment?