Japan eSIM — reviews & details
Japan 50GB 30Days (IIJ) · 50 GB · 30 days
620 reviews
Coverage & networks
- Japan NTT docomo 4G
Traveller reviews
Yuki B.
Mexico · Aug 2026
Honestly better than buying a local SIM at the airport. Topping up was straightforward when I needed more. Exactly as described — no surprises.
Priya
eSIM TopUp Support
· 4 days ago Thank you so much, Yuki! So happy the Japan eSIM kept you connected. We're here whenever you travel again. — Priya
Camila N.
Thailand · Aug 2026
Bought it the night before my flight — smooth process. I kept my normal number for calls while using this for data. Five stars from me.
Tom
eSIM TopUp Support
· 5 days ago Thanks a lot, Camila! Thrilled it made staying connected effortless. — Tom
James G.
Netherlands · Aug 2026
No more hunting for a SIM card kiosk on arrival. Coverage was strong even outside the city.
Sara
eSIM TopUp Support
· 6 days ago Thank you for the kind words, James! So pleased it saved you from roaming bills. Safe travels, and see you on your next trip! – Sara, eSIM TopUp Support
Sven D.
Ireland · Aug 2026
Connected the moment I landed. Customer support answered my question quickly.
Tom
eSIM TopUp Support
· 1 week ago Thanks a lot, Sven! So happy the Japan eSIM kept you connected. Come back anytime! — Tom
Carlos S.
Portugal · Aug 2026
No more hunting for a SIM card kiosk on arrival in Japan. Customer support answered my question quickly. Telling my friends about this.
Mark
eSIM TopUp Support
· 1 week ago Really appreciate this, Carlos! Great to know the setup was quick and easy. We're here whenever you travel again. – Mark, eSIM TopUp Support
Anna T.
Italy · Aug 2026
Exactly what I needed for travelling in Japan. Topping up was straightforward when I needed more.
David
eSIM TopUp Support
· 1 week ago Thank you for the kind words, Anna! Delighted the speeds worked well for you. We're here whenever you travel again. — David, eSIM TopUp Support
Katya W.
Netherlands · Jul 2026
Worked fine but took a little while to connect at first.
James
eSIM TopUp Support
· 1 week ago So sorry to hear this, Katya. We'd love the chance to make this right. Please contact us at esimtopup.io/support and we'll sort it out. – James, eSIM TopUp Support
Fatima K.
Spain · Jul 2026
Decent speeds, though slower than I expected in a few spots.
Diego
eSIM TopUp Support
· 1 week ago We're really sorry, Fatima. That's not the experience we want for Japan. Please contact us at esimtopup.io/support and we'll sort it out. — Diego, eSIM TopUp Support
Kenji B.
Singapore · Jul 2026
Decent speeds, though slower than I expected in a few spots. Topping up was straightforward when I needed more.
James
eSIM TopUp Support
· 1 week ago Thank you for taking the time, Kenji. We're constantly optimising speeds and coverage across Japan. Reach us anytime at esimtopup.io/support if we can help. — James
Katya R.
Mexico · Jul 2026
Exactly what I needed for travelling. The QR code arrived instantly by email.
James
eSIM TopUp Support
· 2 weeks ago Thanks for sharing, Katya! So pleased it saved you from roaming bills. We're here whenever you travel again. — James, eSIM TopUp Support
Olivia S.
Spain · Jul 2026
Honestly better than buying a local SIM at the airport. Setup instructions in the app were clear and simple. Will use eSIM TopUp for my next trip for sure.
Mark
eSIM TopUp Support
· 2 weeks ago So glad to hear this, Olivia! So happy the Japan eSIM kept you connected. Wishing you many more connected adventures! — Mark
Fatima G.
Malaysia · Jul 2026
Used this on my trip and it worked perfectly. Setup instructions in the app were clear and simple. A must-have for international travel.
Laura
eSIM TopUp Support
· 2 weeks ago Thanks for sharing, Fatima! So pleased it saved you from roaming bills. Come back anytime! — Laura
Zoe M.
Thailand · Jul 2026
Super easy to set up before I flew out. Data lasted the whole trip with room to spare. Zero regrets.
Diego
eSIM TopUp Support
· 2 weeks ago Thanks a lot, Zoe! So pleased it saved you from roaming bills. Enjoy your journeys! – Diego 💜
Carlos G.
Indonesia · Jul 2026
Did the job without any drama. Speeds were solid for maps, messaging and browsing. Would definitely buy again.
Sophie
eSIM TopUp Support
· 2 weeks ago Thanks a lot, Carlos! So pleased it saved you from roaming bills. — Sophie
Mateo P.
Indonesia · Jul 2026
Installed in minutes by scanning the QR code. Activation was automatic when I arrived. Will use eSIM TopUp for my next trip for sure.
Emma
eSIM TopUp Support
· 3 weeks ago Really appreciate this, Mateo! So pleased it saved you from roaming bills. We're here whenever you travel again. – Emma, eSIM TopUp Support
Frequently asked questions
How much does the Japan eSIM cost?
The Japan 50GB 30Days (IIJ) plan costs $25.50 for 50 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
Beatriz B. · 2 days ago
Does the validity start on purchase or on first use?
Priya F. · 2 weeks ago
Can I top up the same eSIM instead of buying a new one?
Omar F. · 5 months ago
Will this keep my WhatsApp active with my home number?
Isabella P. · 5 months ago
Can I use this for hotspot/tethering?
Carlos D. · 6 months ago
Do I need to install it before I travel or after I arrive?
Zoe T. · 6 months ago
Is 5G supported or just 4G?
Lucia H. · 7 months ago
Does this work on an iPhone 13?
Linh H. · 8 months ago
How do I check how much data I have left?
Haruto K. · 9 months ago
Thanks, installed with no problems on my Samsung.
Min-jun L. · 11 months ago
How long does the QR code take to arrive after payment?
Ingrid C. · 11 months ago
Great guide, the setup steps were really helpful.
Olivia F. · 1 year ago
Can I use it in nearby countries too?