Japan eSIM — reviews & details
Japan 3GB 30Days (IIJ) · 3 GB · 30 days
620 reviews
Coverage & networks
- Japan NTT docomo 4G
Traveller reviews
Fatima T.
Turkey · Feb 2026
Installed in minutes by scanning the QR code. Ran hotspot to my laptop with no issues.
Tom
eSIM TopUp Support
· 5 months ago Thanks a lot, Fatima! So pleased it saved you from roaming bills. – Tom 💜
Haruto W.
Poland · Feb 2026
Did the job without any drama. Setup instructions in the app were clear and simple. Highly recommend for any traveller.
Laura
eSIM TopUp Support
· 5 months ago Thank you for the kind words, Haruto! Thrilled it made staying connected effortless. Enjoy your journeys! – Laura 💜
Chloe F.
Egypt · Feb 2026
Installed in minutes by scanning the QR code. Speeds were solid for maps, messaging and browsing. Five stars from me.
Mark
eSIM TopUp Support
· 5 months ago Thank you for the kind words, Chloe! So happy the Japan eSIM kept you connected. Wishing you many more connected adventures! — Mark, eSIM TopUp Support
James P.
Netherlands · Feb 2026
No more hunting for a SIM card kiosk on arrival. Customer support answered my question quickly.
Yuki
eSIM TopUp Support
· 5 months ago Thank you so much, James! Delighted the speeds worked well for you. Wishing you many more connected adventures! — Yuki
Louis W.
France · Feb 2026
Super easy to set up before I flew out. Data lasted the whole trip with room to spare.
Tom
eSIM TopUp Support
· 5 months ago Thanks for sharing, Louis! Great to know the setup was quick and easy. – Tom, eSIM TopUp Support
Omar N.
Philippines · Feb 2026
Used this on my trip and it worked perfectly. Coverage was strong even outside the city. Five stars from me.
Sara
eSIM TopUp Support
· 5 months ago Thanks for sharing, Omar! Thrilled it made staying connected effortless. We're here whenever you travel again. — Sara, eSIM TopUp Support
Beatriz M.
Vietnam · Feb 2026
Worked fine but took a little while to connect at first. I kept my normal number for calls while using this for data.
Emma
eSIM TopUp Support
· 6 months ago So sorry to hear this, Beatriz. That's not the experience we want for Japan. Reach our team at esimtopup.io/support so we can help right away. – Emma 💜
Emma V.
Singapore · Feb 2026
Super easy to set up before I flew out. Topping up was straightforward when I needed more. Made staying connected effortless.
Grace
eSIM TopUp Support
· 6 months ago Cheers, Emma! So pleased it saved you from roaming bills. We're here whenever you travel again. – Grace 💜
Somchai S.
South Korea · Feb 2026
Great value compared to roaming charges in Japan. Signal held up well on trains and in rural areas. Will use eSIM TopUp for my next trip for sure.
David
eSIM TopUp Support
· 6 months ago Thanks for sharing, Somchai! Thrilled it made staying connected effortless. Come back anytime! – David, eSIM TopUp Support
Marco R.
Ireland · Feb 2026
Did the job without any drama. Setup instructions in the app were clear and simple.
Omar
eSIM TopUp Support
· 6 months ago Really appreciate this, Marco! Love that you were online the moment you landed in Japan. Come back anytime! — Omar
Olivia S.
Vietnam · Feb 2026
Worked fine but took a little while to connect at first.
David
eSIM TopUp Support
· 6 months ago Thank you for taking the time, Olivia. 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. – David 💜
Lea K.
Turkey · Feb 2026
No more hunting for a SIM card kiosk on arrival in Japan. I kept my normal number for calls while using this for data. Telling my friends about this.
Emma
eSIM TopUp Support
· 6 months ago So glad to hear this, Lea! Thrilled it made staying connected effortless. Wishing you many more connected adventures! – Emma 💜
Budi B.
Singapore · Feb 2026
Bought it the night before my flight — smooth process. Data lasted the whole trip with room to spare. Made staying connected effortless.
Priya
eSIM TopUp Support
· 6 months ago Thanks for sharing, Budi! So pleased it saved you from roaming bills. Come back anytime! — Priya
Diego H.
New Zealand · Feb 2026
First time using an eSIM and it was painless. Coverage was strong even outside the city. Great experience overall.
Ingrid
eSIM TopUp Support
· 6 months ago Really appreciate this, Diego! So pleased it saved you from roaming bills. Come back anytime! – Ingrid, eSIM TopUp Support
Mohammed B.
United States · Feb 2026
Used this on my trip and it worked perfectly. Streaming and video calls worked without buffering. Exactly as described — no surprises.
David
eSIM TopUp Support
· 6 months ago So glad to hear this, Mohammed! Love that you were online the moment you landed in Japan. We're here whenever you travel again. — David
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?