Japan eSIM — reviews & details
Japan 3GB 30Days · 3 GB · 30 days
620 reviews
Coverage & networks
- Japan NTT docomo 5G Rakuten Mobile 5G KDDI/au 5G SoftBank 5G
Traveller reviews
Pablo M.
United Kingdom · Feb 2026
Connected the moment I landed. Speeds were solid for maps, messaging and browsing. Would definitely buy again.
Yuki
eSIM TopUp Support
· 6 months ago Thank you so much, Pablo! Thrilled it made staying connected effortless. — Yuki
Mateo T.
Australia · Feb 2026
Bought it the night before my flight — smooth process. Topping up was straightforward when I needed more. Exactly as described — no surprises.
Anna
eSIM TopUp Support
· 6 months ago Thank you for the kind words, Mateo! So pleased it saved you from roaming bills. — Anna
Sarah L.
Vietnam · Feb 2026
Worked fine but took a little while to connect at first. Activation was automatic when I arrived.
Laura
eSIM TopUp Support
· 6 months ago Thanks for the honest feedback, Sarah. Glad it mostly worked for you in Japan — we're always improving our coverage. Any questions, our team is at esimtopup.io/support. – Laura 💜
Budi G.
Italy · Feb 2026
Honestly better than buying a local SIM at the airport. Activation was automatic when I arrived. Exactly as described — no surprises.
Mark
eSIM TopUp Support
· 6 months ago So glad to hear this, Budi! Love that you were online the moment you landed in Japan. Enjoy your journeys! – Mark 💜
Ethan C.
Portugal · Feb 2026
Bought it the night before my flight — smooth process. Topping up was straightforward when I needed more. Great experience overall.
Priya
eSIM TopUp Support
· 6 months ago Thank you so much, Ethan! So happy the Japan eSIM kept you connected. Wishing you many more connected adventures! – Priya, eSIM TopUp Support
Lucas H.
Egypt · Feb 2026
Saved me a fortune on my holiday. Customer support answered my question quickly.
Sophie
eSIM TopUp Support
· 6 months ago Cheers, Lucas! Love that you were online the moment you landed in Japan. Come back anytime! – Sophie, eSIM TopUp Support
Ravi H.
Poland · Feb 2026
Honestly better than buying a local SIM at the airport. Setup instructions in the app were clear and simple. Five stars from me.
Sara
eSIM TopUp Support
· 6 months ago Thanks for sharing, Ravi! Delighted the speeds worked well for you. Come back anytime! – Sara, eSIM TopUp Support
Aisha K.
Egypt · Feb 2026
Great value compared to roaming charges in Japan. Customer support answered my question quickly.
Grace
eSIM TopUp Support
· 6 months ago Thank you so much, Aisha! So pleased it saved you from roaming bills. Enjoy your journeys! – Grace 💜
Mei C.
Turkey · Feb 2026
Did the job without any drama. Setup instructions in the app were clear and simple. Would definitely buy again.
Yuki
eSIM TopUp Support
· 6 months ago Cheers, Mei! Great to know the setup was quick and easy. – Yuki 💜
Max P.
Switzerland · Feb 2026
Super easy to set up before I flew out. Signal held up well on trains and in rural areas. Great experience overall.
James
eSIM TopUp Support
· 6 months ago Cheers, Max! Thrilled it made staying connected effortless. – James, eSIM TopUp Support
Lucas B.
Thailand · Feb 2026
Exactly what I needed for travelling. Activation was automatic when I arrived in Japan. A must-have for international travel.
Mark
eSIM TopUp Support
· 6 months ago Really appreciate this, Lucas! So pleased it saved you from roaming bills. Wishing you many more connected adventures! — Mark, eSIM TopUp Support
Ryan P.
United Kingdom · Feb 2026
Exactly what I needed for travelling in Japan. Customer support answered my question quickly. A must-have for international travel.
Priya
eSIM TopUp Support
· 6 months ago Cheers, Ryan! Great to know the setup was quick and easy. Come back anytime! — Priya
Fatima V.
Saudi Arabia · Feb 2026
Did the job without any drama. Coverage was strong even outside the city.
Ken
eSIM TopUp Support
· 6 months ago Thanks a lot, Fatima! So pleased it saved you from roaming bills. — Ken
Somchai C.
Egypt · Feb 2026
No more hunting for a SIM card kiosk on arrival in Japan. Topping up was straightforward when I needed more. A must-have for international travel.
Sophie
eSIM TopUp Support
· 6 months ago Thanks for sharing, Somchai! So pleased it saved you from roaming bills. — Sophie
Anna F.
Saudi Arabia · Feb 2026
Decent speeds, though slower than I expected in a few spots. Topping up was straightforward when I needed more.
Omar
eSIM TopUp Support
· 6 months ago Thank you for taking the time, Anna. We're constantly optimising speeds and coverage across Japan. Any questions, our team is at esimtopup.io/support. – Omar 💜
Frequently asked questions
How much does the Japan eSIM cost?
The Japan 3GB 30Days 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 G. · 2 months ago
Is 5G supported or just 4G?
Pablo C. · 2 months ago
How do I check how much data I have left?
Grace G. · 2 months ago
Can I use this for hotspot/tethering?
Marco C. · 3 months ago
Can I use it in nearby countries too?
Lucas D. · 3 months ago
Great guide, the setup steps were really helpful.
Ingrid F. · 5 months ago
Is roaming charged extra or is it all included?
Pablo N. · 6 months ago
Does the validity start on purchase or on first use?
Olivia N. · 6 months ago
Does this work on an iPhone 13?
Linh T. · 8 months ago
Can I top up the same eSIM instead of buying a new one?
Viktor P. · 9 months ago
Thanks, installed with no problems on my Samsung.
Carlos L. · 9 months ago
Will this keep my WhatsApp active with my home number?
Sri N. · 1 year ago
Which networks does this connect to?