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
Mateo W.
Ireland · Oct 2025
Used this on my trip and it worked perfectly. Customer support answered my question quickly.
Anna
eSIM TopUp Support
· 9 months ago Thanks for sharing, Mateo! Wonderful to hear it worked smoothly in Japan. Come back anytime! – Anna, eSIM TopUp Support
Zoe D.
Poland · Oct 2025
Super easy to set up before I flew out. Streaming and video calls worked without buffering.
Omar
eSIM TopUp Support
· 9 months ago Thanks for sharing, Zoe! So pleased it saved you from roaming bills. — Omar
Omar T.
New Zealand · Oct 2025
No more hunting for a SIM card kiosk on arrival. Streaming and video calls worked without buffering. Great experience overall.
Diego
eSIM TopUp Support
· 9 months ago Thank you so much, Omar! Thrilled it made staying connected effortless. We're here whenever you travel again. – Diego 💜
James S.
Turkey · Oct 2025
Bought it the night before my flight — smooth process. Speeds were solid for maps, messaging and browsing. A must-have for international travel.
James
eSIM TopUp Support
· 9 months ago Thank you for the kind words, James! Love that you were online the moment you landed in Japan. Enjoy your journeys! – James 💜
Noah T.
Germany · Oct 2025
Saved me a fortune on my holiday. Signal held up well on trains and in rural areas. Would definitely buy again.
Mark
eSIM TopUp Support
· 9 months ago Really appreciate this, Noah! So happy the Japan eSIM kept you connected. Safe travels, and see you on your next trip! – Mark 💜
Carlos C.
Egypt · Oct 2025
Good coverage in the city, a bit patchy in remote areas.
Anna
eSIM TopUp Support
· 9 months ago So sorry to hear this, Carlos. We'd love the chance to make this right. Please contact us at esimtopup.io/support and we'll sort it out. – Anna 💜
Hugo F.
Ireland · Oct 2025
Connected the moment I landed. Data lasted the whole trip with room to spare. Made staying connected effortless.
Priya
eSIM TopUp Support
· 9 months ago Cheers, Hugo! So happy the Japan eSIM kept you connected. Safe travels, and see you on your next trip! — Priya
Viktor F.
Philippines · Oct 2025
Saved me a fortune on my holiday in Japan. Setup instructions in the app were clear and simple. Will use eSIM TopUp for my next trip for sure.
Sara
eSIM TopUp Support
· 9 months ago Thank you for the kind words, Viktor! Delighted the speeds worked well for you. — Sara
Olivia C.
Switzerland · Oct 2025
Bought it the night before my flight — smooth process in Japan. Signal held up well on trains and in rural areas. Would definitely buy again.
Emma
eSIM TopUp Support
· 9 months ago Really appreciate this, Olivia! Delighted the speeds worked well for you. – Emma 💜
Thomas K.
Vietnam · Oct 2025
Super easy to set up before I flew out in Japan. Streaming and video calls worked without buffering. Exactly as described — no surprises.
David
eSIM TopUp Support
· 9 months ago Cheers, Thomas! So pleased it saved you from roaming bills. Wishing you many more connected adventures! – David, eSIM TopUp Support
Max H.
United States · Oct 2025
No more hunting for a SIM card kiosk on arrival. Speeds were solid for maps, messaging and browsing. Exactly as described — no surprises.
David
eSIM TopUp Support
· 9 months ago Cheers, Max! Great to know the setup was quick and easy. – David 💜
Marco D.
United States · Oct 2025
Used this on my trip and it worked perfectly in Japan. Streaming and video calls worked without buffering.
Tom
eSIM TopUp Support
· 9 months ago Cheers, Marco! Love that you were online the moment you landed in Japan. Come back anytime! – Tom 💜
Pablo N.
Portugal · Oct 2025
Bought it the night before my flight — smooth process. Data lasted the whole trip with room to spare. Great experience overall.
Diego
eSIM TopUp Support
· 10 months ago Thanks a lot, Pablo! Delighted the speeds worked well for you. – Diego, eSIM TopUp Support
Sri L.
Australia · Oct 2025
Honestly better than buying a local SIM at the airport. Streaming and video calls worked without buffering. Will use eSIM TopUp for my next trip for sure.
David
eSIM TopUp Support
· 10 months ago Thanks for sharing, Sri! Delighted the speeds worked well for you. Come back anytime! – David 💜
Ingrid D.
Vietnam · Oct 2025
Connected the moment I landed. Customer support answered my question quickly. Would definitely buy again.
Mark
eSIM TopUp Support
· 10 months ago Thank you for the kind words, Ingrid! Great to know the setup was quick and easy. Enjoy your journeys! — Mark, eSIM TopUp Support
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?