Japan eSIM — reviews & details
Japan 3GB 30Days (IIJ) · 3 GB · 30 days
620 reviews
Coverage & networks
- Japan NTT docomo 4G
Traveller reviews
Ryan F.
France · Dec 2025
First time using an eSIM and it was painless in Japan. Customer support answered my question quickly. Would definitely buy again.
Omar
eSIM TopUp Support
· 7 months ago Cheers, Ryan! So pleased it saved you from roaming bills. Come back anytime! — Omar, eSIM TopUp Support
Aisha P.
South Korea · Dec 2025
Bought it the night before my flight — smooth process. Activation was automatic when I arrived. Would definitely buy again.
Mark
eSIM TopUp Support
· 7 months ago Thank you for the kind words, Aisha! Delighted the speeds worked well for you. — Mark
Louis T.
Thailand · Dec 2025
Exactly what I needed for travelling. Ran hotspot to my laptop with no issues. Five stars from me.
Emma
eSIM TopUp Support
· 7 months ago Cheers, Louis! Love that you were online the moment you landed in Japan. Enjoy your journeys! – Emma, eSIM TopUp Support
Camila F.
UAE · Dec 2025
Bought it the night before my flight — smooth process. Data lasted the whole trip with room to spare. Will use eSIM TopUp for my next trip for sure.
Anna
eSIM TopUp Support
· 7 months ago Thank you for the kind words, Camila! So pleased it saved you from roaming bills. Safe travels, and see you on your next trip! – Anna 💜
Haruto G.
United States · Dec 2025
Installed in minutes by scanning the QR code. Activation was automatic when I arrived. Made staying connected effortless.
David
eSIM TopUp Support
· 7 months ago Thanks for sharing, Haruto! Wonderful to hear it worked smoothly in Japan. Safe travels, and see you on your next trip! — David, eSIM TopUp Support
Isabella V.
Vietnam · Dec 2025
Exactly what I needed for travelling. Topping up was straightforward when I needed more.
Anna
eSIM TopUp Support
· 7 months ago Thanks a lot, Isabella! Thrilled it made staying connected effortless. — Anna, eSIM TopUp Support
Noah V.
Sweden · Dec 2025
Exactly what I needed for travelling. The QR code arrived instantly by email. Five stars from me.
Laura
eSIM TopUp Support
· 7 months ago Cheers, Noah! Wonderful to hear it worked smoothly in Japan. Safe travels, and see you on your next trip! – Laura, eSIM TopUp Support
Omar D.
Switzerland · Dec 2025
Exactly what I needed for travelling. Coverage was strong even outside the city. Five stars from me.
Diego
eSIM TopUp Support
· 7 months ago Cheers, Omar! Delighted the speeds worked well for you. — Diego
Pablo M.
Poland · Dec 2025
Used this on my trip and it worked perfectly. Signal held up well on trains and in rural areas. Five stars from me.
Mark
eSIM TopUp Support
· 7 months ago Thank you for the kind words, Pablo! So pleased it saved you from roaming bills. Enjoy your journeys! — Mark
Ravi R.
Singapore · Dec 2025
Great value compared to roaming charges. Ran hotspot to my laptop with no issues.
Priya
eSIM TopUp Support
· 7 months ago Thanks a lot, Ravi! Great to know the setup was quick and easy. Come back anytime! – Priya, eSIM TopUp Support
Lucas V.
Singapore · Dec 2025
Honestly better than buying a local SIM at the airport. Streaming and video calls worked without buffering. Will use eSIM TopUp for my next trip for sure.
Tom
eSIM TopUp Support
· 7 months ago So glad to hear this, Lucas! Thrilled it made staying connected effortless. – Tom 💜
Yuki K.
Italy · Dec 2025
Good coverage in the city, a bit patchy in remote areas. Signal held up well on trains and in rural areas.
Diego
eSIM TopUp Support
· 8 months ago Thanks for the honest feedback, Yuki. Glad it mostly worked for you in Japan — we're always improving our coverage. Reach us anytime at esimtopup.io/support if we can help. — Diego, eSIM TopUp Support
Louis L.
Turkey · Dec 2025
Install took me two tries but was fine after that. Activation was automatic when I arrived.
Omar
eSIM TopUp Support
· 8 months ago Appreciate you sharing this, Louis. 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. — Omar, eSIM TopUp Support
Ava G.
Netherlands · Dec 2025
Did the job without any drama in Japan. Ran hotspot to my laptop with no issues.
Sara
eSIM TopUp Support
· 8 months ago Thank you for the kind words, Ava! So happy the Japan eSIM kept you connected. We're here whenever you travel again. – Sara 💜
Priya V.
India · Dec 2025
Super easy to set up before I flew out in Japan. Ran hotspot to my laptop with no issues. A must-have for international travel.
Diego
eSIM TopUp Support
· 8 months ago Thanks a lot, Priya! Great to know the setup was quick and easy. Wishing you many more connected adventures! — Diego
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?