Japan eSIM — reviews & details
Japan 2GB/Day (IIJ) · 2 GB/day · 1 days
620 reviews
Coverage & networks
- Japan NTT docomo 4G
Traveller reviews
Max P.
Netherlands · Jul 2026
First time using an eSIM and it was painless in Japan. Data lasted the whole trip with room to spare.
Ingrid
eSIM TopUp Support
· 3 weeks ago Cheers, Max! Thrilled it made staying connected effortless. Enjoy your journeys! – Ingrid 💜
Ryan V.
Singapore · Jul 2026
Decent speeds, though slower than I expected in a few spots. Speeds were solid for maps, messaging and browsing.
Ken
eSIM TopUp Support
· 3 weeks ago We're really sorry, Ryan. That's not the experience we want for Japan. Reach our team at esimtopup.io/support so we can help right away. — Ken, eSIM TopUp Support
Camila C.
United States · Jul 2026
Saved me a fortune on my holiday. Customer support answered my question quickly.
Sophie
eSIM TopUp Support
· 3 weeks ago Thanks for sharing, Camila! So happy the Japan eSIM kept you connected. We're here whenever you travel again. — Sophie, eSIM TopUp Support
Lucia G.
Sweden · Jul 2026
Decent speeds, though slower than I expected in a few spots.
Sara
eSIM TopUp Support
· 3 weeks ago Thanks for the honest feedback, Lucia. We're constantly optimising speeds and coverage across Japan. Reach us anytime at esimtopup.io/support if we can help. — Sara
Nguyen K.
Turkey · Jul 2026
Connected the moment I landed. Topping up was straightforward when I needed more. Made staying connected effortless.
Sophie
eSIM TopUp Support
· 3 weeks ago Really appreciate this, Nguyen! Thrilled it made staying connected effortless. Wishing you many more connected adventures! — Sophie, eSIM TopUp Support
Liam D.
Mexico · Jul 2026
Decent speeds, though slower than I expected in a few spots.
Anna
eSIM TopUp Support
· 3 weeks ago Thanks for the honest feedback, Liam. 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. — Anna, eSIM TopUp Support
Lucia P.
Netherlands · Jul 2026
Honestly better than buying a local SIM at the airport in Japan. Data lasted the whole trip with room to spare.
Anna
eSIM TopUp Support
· 4 weeks ago Thanks a lot, Lucia! Wonderful to hear it worked smoothly in Japan. – Anna 💜
Aisha V.
Singapore · Jul 2026
Honestly better than buying a local SIM at the airport. Customer support answered my question quickly.
Sophie
eSIM TopUp Support
· 4 weeks ago So glad to hear this, Aisha! Delighted the speeds worked well for you. — Sophie, eSIM TopUp Support
Mateo F.
United States · Jul 2026
Super easy to set up before I flew out in Japan. Data lasted the whole trip with room to spare. Great experience overall.
Diego
eSIM TopUp Support
· 4 weeks ago Thank you so much, Mateo! So happy the Japan eSIM kept you connected. — Diego, eSIM TopUp Support
Marco P.
Japan · Jul 2026
Solid overall, just wish there was a bit more data for the price. Ran hotspot to my laptop with no issues.
Emma
eSIM TopUp Support
· 4 weeks ago Apologies for the trouble, Marco. This isn't the standard we aim for. Please contact us at esimtopup.io/support and we'll sort it out. — Emma
Ingrid W.
Mexico · Jul 2026
Bought it the night before my flight — smooth process. Customer support answered my question quickly. Telling my friends about this.
David
eSIM TopUp Support
· 4 weeks ago So glad to hear this, Ingrid! Wonderful to hear it worked smoothly in Japan. We're here whenever you travel again. — David, eSIM TopUp Support
Emma R.
Turkey · Jul 2026
Did the job without any drama. Ran hotspot to my laptop with no issues. Five stars from me.
Laura
eSIM TopUp Support
· 1 month ago Really appreciate this, Emma! Delighted the speeds worked well for you. We're here whenever you travel again. — Laura, eSIM TopUp Support
Ji-woo N.
Thailand · Jul 2026
Connected the moment I landed. Signal held up well on trains and in rural areas. Would definitely buy again.
David
eSIM TopUp Support
· 1 month ago Thank you for the kind words, Ji-woo! Thrilled it made staying connected effortless. Enjoy your journeys! — David
Carlos T.
Portugal · Jul 2026
Exactly what I needed for travelling in Japan. Streaming and video calls worked without buffering. Telling my friends about this.
Emma
eSIM TopUp Support
· 1 month ago Really appreciate this, Carlos! Wonderful to hear it worked smoothly in Japan. – Emma 💜
Mateo H.
Japan · Jul 2026
Did the job without any drama in Japan. Coverage was strong even outside the city. Five stars from me.
Yuki
eSIM TopUp Support
· 1 month ago Thanks a lot, Mateo! Thrilled it made staying connected effortless. We're here whenever you travel again. — Yuki
Frequently asked questions
How much does the Japan eSIM cost?
The Japan 2GB/Day (IIJ) plan costs $3.00 for 2 GB/day over 1 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
Wei H. · 6 days ago
How do I check how much data I have left?
Ananya B. · 2 weeks ago
Do I need to install it before I travel or after I arrive?
Pablo L. · 1 month ago
Thanks, installed with no problems on my Samsung.
Min-jun P. · 1 month ago
How long does the QR code take to arrive after payment?
Camila K. · 5 months ago
Which networks does this connect to?
Arjun P. · 7 months ago
Does this work on an iPhone 13?
Arjun D. · 7 months ago
Can I use it in nearby countries too?
Priya N. · 8 months ago
Can I top up the same eSIM instead of buying a new one?
Marco V. · 9 months ago
Does the validity start on purchase or on first use?
Ingrid V. · 9 months ago
Great guide, the setup steps were really helpful.
Diego L. · 10 months ago
Can I use this for hotspot/tethering?
Andre M. · 10 months ago
Will this keep my WhatsApp active with my home number?