Japan eSIM — reviews & details
Japan 3GB 30Days (IIJ) · 3 GB · 30 days
620 reviews
Coverage & networks
- Japan NTT docomo 4G
Traveller reviews
Haruto C.
Japan · Feb 2026
Installed in minutes by scanning the QR code. Data lasted the whole trip with room to spare. Will use eSIM TopUp for my next trip for sure.
Anna
eSIM TopUp Support
· 6 months ago So glad to hear this, Haruto! Love that you were online the moment you landed in Japan. We're here whenever you travel again. – Anna, eSIM TopUp Support
Beatriz T.
Sweden · Feb 2026
Used this on my trip and it worked perfectly. Data lasted the whole trip with room to spare. Great experience overall.
Yuki
eSIM TopUp Support
· 6 months ago Thank you for the kind words, Beatriz! Thrilled it made staying connected effortless. – Yuki 💜
Somchai K.
Japan · Feb 2026
Used this on my trip and it worked perfectly in Japan. Signal held up well on trains and in rural areas. Highly recommend for any traveller.
Ingrid
eSIM TopUp Support
· 6 months ago Thank you for the kind words, Somchai! Love that you were online the moment you landed in Japan. — Ingrid, eSIM TopUp Support
Marco V.
Philippines · Feb 2026
Great value compared to roaming charges. I kept my normal number for calls while using this for data. Highly recommend for any traveller.
Sophie
eSIM TopUp Support
· 6 months ago Thank you for the kind words, Marco! Thrilled it made staying connected effortless. Come back anytime! — Sophie
Katya F.
Switzerland · Feb 2026
Bought it the night before my flight — smooth process. Customer support answered my question quickly.
Priya
eSIM TopUp Support
· 6 months ago Thank you so much, Katya! Great to know the setup was quick and easy. — Priya
Zoe P.
Philippines · Feb 2026
Decent speeds, though slower than I expected in a few spots. Streaming and video calls worked without buffering.
Mark
eSIM TopUp Support
· 6 months ago Thanks for the honest feedback, Zoe. We're constantly optimising speeds and coverage across Japan. Any questions, our team is at esimtopup.io/support. – Mark, eSIM TopUp Support
Emma B.
Indonesia · Feb 2026
Honestly better than buying a local SIM at the airport in Japan. The QR code arrived instantly by email. Great experience overall.
Grace
eSIM TopUp Support
· 6 months ago Thanks a lot, Emma! Great to know the setup was quick and easy. — Grace, eSIM TopUp Support
Nguyen S.
Spain · Feb 2026
First time using an eSIM and it was painless. The QR code arrived instantly by email. Great experience overall.
Diego
eSIM TopUp Support
· 6 months ago Thanks for sharing, Nguyen! Wonderful to hear it worked smoothly in Japan. Wishing you many more connected adventures! – Diego, eSIM TopUp Support
Hana V.
Sweden · Feb 2026
Saved me a fortune on my holiday. Ran hotspot to my laptop with no issues. Will use eSIM TopUp for my next trip for sure.
Grace
eSIM TopUp Support
· 6 months ago So glad to hear this, Hana! Great to know the setup was quick and easy. – Grace, eSIM TopUp Support
Sven K.
Saudi Arabia · Jan 2026
Connected the moment I landed. Coverage was strong even outside the city.
Priya
eSIM TopUp Support
· 6 months ago Thank you for the kind words, Sven! Love that you were online the moment you landed in Japan. Wishing you many more connected adventures! – Priya 💜
Ananya D.
Australia · Jan 2026
No more hunting for a SIM card kiosk on arrival in Japan. Coverage was strong even outside the city. Exactly as described — no surprises.
Ingrid
eSIM TopUp Support
· 6 months ago Thank you so much, Ananya! Delighted the speeds worked well for you. Come back anytime! — Ingrid, eSIM TopUp Support
Mei S.
Thailand · Jan 2026
Saved me a fortune on my holiday. Data lasted the whole trip with room to spare. Highly recommend for any traveller.
Ken
eSIM TopUp Support
· 6 months ago Thank you for the kind words, Mei! Delighted the speeds worked well for you. Enjoy your journeys! — Ken, eSIM TopUp Support
Linh V.
New Zealand · Jan 2026
Exactly what I needed for travelling. Topping up was straightforward when I needed more. Will use eSIM TopUp for my next trip for sure.
Ingrid
eSIM TopUp Support
· 6 months ago Thank you for the kind words, Linh! Delighted the speeds worked well for you. We're here whenever you travel again. — Ingrid, eSIM TopUp Support
Grace C.
Portugal · Jan 2026
First time using an eSIM and it was painless. Streaming and video calls worked without buffering. Telling my friends about this.
Ken
eSIM TopUp Support
· 6 months ago Really appreciate this, Grace! Wonderful to hear it worked smoothly in Japan. Safe travels, and see you on your next trip! – Ken 💜
Haruto V.
Italy · Jan 2026
Connected the moment I landed. Activation was automatic when I arrived. Five stars from me.
Laura
eSIM TopUp Support
· 6 months ago Thank you so much, Haruto! So happy the Japan eSIM kept you connected. Safe travels, and see you on your next trip! — Laura
Frequently asked questions
How much does the Japan eSIM cost?
The Japan 3GB 30Days (IIJ) plan costs $2.70 for 3 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
Pablo L. · 2 weeks ago
How long does the QR code take to arrive after payment?
Priya H. · 1 month ago
How do I check how much data I have left?
Mateo M. · 2 months ago
Will this keep my WhatsApp active with my home number?
Giulia H. · 3 months ago
Does this work on an iPhone 13?
Omar H. · 5 months ago
Is roaming charged extra or is it all included?
Ingrid F. · 6 months ago
Thanks, installed with no problems on my Samsung.
Haruto V. · 6 months ago
Can I use it in nearby countries too?
Noah D. · 7 months ago
Can I use this for hotspot/tethering?
James S. · 7 months ago
Do I need to install it before I travel or after I arrive?
Katya W. · 8 months ago
Can I top up the same eSIM instead of buying a new one?
Noah V. · 8 months ago
Does the validity start on purchase or on first use?
Liam V. · 10 months ago
Which networks does this connect to?