Japan eSIM — reviews & details
Japan 20GB 30Days · 20 GB · 30 days
620 reviews
Coverage & networks
- Japan NTT docomo 5G Rakuten Mobile 5G KDDI/au 5G SoftBank 5G
Traveller reviews
Omar W.
Malaysia · Jul 2026
Honestly better than buying a local SIM at the airport. Data lasted the whole trip with room to spare. Telling my friends about this.
Diego
eSIM TopUp Support
· 2 weeks ago Really appreciate this, Omar! Love that you were online the moment you landed in Japan. — Diego, eSIM TopUp Support
Beatriz K.
Italy · Jul 2026
Decent speeds, though slower than I expected in a few spots.
Priya
eSIM TopUp Support
· 3 weeks ago So sorry to hear this, Beatriz. We'd love the chance to make this right. Please contact us at esimtopup.io/support and we'll sort it out. – Priya 💜
Mei V.
Philippines · Jul 2026
Bought it the night before my flight — smooth process. Coverage was strong even outside the city. Will use eSIM TopUp for my next trip for sure.
Tom
eSIM TopUp Support
· 3 weeks ago Thank you for the kind words, Mei! So pleased it saved you from roaming bills. Come back anytime! – Tom 💜
Emma S.
Spain · Jul 2026
Decent speeds, though slower than I expected in a few spots.
Yuki
eSIM TopUp Support
· 3 weeks ago So sorry to hear this, Emma. That's not the experience we want for Japan. Please contact us at esimtopup.io/support and we'll sort it out. – Yuki 💜
Min-jun D.
UAE · Jul 2026
Honestly better than buying a local SIM at the airport in Japan. Topping up was straightforward when I needed more.
Omar
eSIM TopUp Support
· 3 weeks ago Really appreciate this, Min-jun! Wonderful to hear it worked smoothly in Japan. Enjoy your journeys! – Omar, eSIM TopUp Support
Beatriz G.
Switzerland · Jul 2026
Used this on my trip and it worked perfectly. Signal held up well on trains and in rural areas. A must-have for international travel.
Mark
eSIM TopUp Support
· 3 weeks ago Cheers, Beatriz! Wonderful to hear it worked smoothly in Japan. Come back anytime! — Mark, eSIM TopUp Support
Nadia N.
Mexico · Jul 2026
Super easy to set up before I flew out in Japan. I kept my normal number for calls while using this for data.
James
eSIM TopUp Support
· 3 weeks ago Thanks for sharing, Nadia! Delighted the speeds worked well for you. Wishing you many more connected adventures! — James, eSIM TopUp Support
Wei W.
Saudi Arabia · Jul 2026
Connected the moment I landed. Coverage was strong even outside the city. Telling my friends about this.
Diego
eSIM TopUp Support
· 3 weeks ago Really appreciate this, Wei! Love that you were online the moment you landed in Japan. — Diego
Katya L.
United States · Jul 2026
Did the job without any drama. I kept my normal number for calls while using this for data. Highly recommend for any traveller.
Ingrid
eSIM TopUp Support
· 3 weeks ago Thanks for sharing, Katya! Thrilled it made staying connected effortless. Wishing you many more connected adventures! – Ingrid 💜
Hana D.
Australia · Jul 2026
Good coverage in the city, a bit patchy in remote areas.
Omar
eSIM TopUp Support
· 3 weeks ago Thank you for taking the time, Hana. Glad it mostly worked for you in Japan — we're always improving our coverage. Any questions, our team is at esimtopup.io/support. — Omar, eSIM TopUp Support
Diego W.
Spain · Jul 2026
Decent speeds, though slower than I expected in a few spots. Setup instructions in the app were clear and simple.
Ken
eSIM TopUp Support
· 4 weeks ago Thanks for the honest feedback, Diego. Glad it mostly worked for you in Japan — we're always improving our coverage. Any questions, our team is at esimtopup.io/support. – Ken, eSIM TopUp Support
Max R.
Philippines · Jul 2026
Saved me a fortune on my holiday. Coverage was strong even outside the city. Will use eSIM TopUp for my next trip for sure.
David
eSIM TopUp Support
· 4 weeks ago Thank you for the kind words, Max! So pleased it saved you from roaming bills. Enjoy your journeys! — David
Sarah F.
Netherlands · Jul 2026
Honestly better than buying a local SIM at the airport. Speeds were solid for maps, messaging and browsing.
Yuki
eSIM TopUp Support
· 4 weeks ago So glad to hear this, Sarah! Delighted the speeds worked well for you. Wishing you many more connected adventures! — Yuki
Kenji K.
South Korea · Jul 2026
Solid overall, just wish there was a bit more data for the price. Streaming and video calls worked without buffering.
Sophie
eSIM TopUp Support
· 4 weeks ago Thanks for the honest feedback, Kenji. Good to hear it did the job, and we're working to make it even better. Reach us anytime at esimtopup.io/support if we can help. – Sophie 💜
Linh R.
Indonesia · Jul 2026
Honestly better than buying a local SIM at the airport. Activation was automatic when I arrived.
Grace
eSIM TopUp Support
· 1 month ago Thanks for sharing, Linh! Thrilled it made staying connected effortless. — Grace, eSIM TopUp Support
Frequently asked questions
How much does the Japan eSIM cost?
The Japan 20GB 30Days plan costs $12.30 for 20 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
Arjun V. · 3 days ago
Is 5G supported or just 4G?
Beatriz R. · 3 weeks ago
Great guide, the setup steps were really helpful.
Noah F. · 2 months ago
Will this keep my WhatsApp active with my home number?
Lucia B. · 3 months ago
Which networks does this connect to?
Katya K. · 3 months ago
Is roaming charged extra or is it all included?
Ethan L. · 5 months ago
Do I need to install it before I travel or after I arrive?
Ava G. · 5 months ago
Does this work on an iPhone 13?
Hugo B. · 6 months ago
Thanks, installed with no problems on my Samsung.
Wei L. · 9 months ago
Can I use this for hotspot/tethering?
Emma V. · 10 months ago
Does the validity start on purchase or on first use?
Liam P. · 1 year ago
Can I use it in nearby countries too?
Louis H. · 1 year ago
Can I top up the same eSIM instead of buying a new one?