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Japan eSIM — reviews & details

Japan 3GB 30Days · 3 GB · 30 days

View plan & buy — $2.70
4.5

620 reviews

5 ★ 61%
4 ★ 30%
3 ★ 7%
2 ★ 1%
1 ★ 1%

Coverage & networks

  • Japan NTT docomo 5G Rakuten Mobile 5G KDDI/au 5G SoftBank 5G

Traveller reviews

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Pablo M.

United Kingdom · Feb 2026

✓ Verified

Connected the moment I landed. Speeds were solid for maps, messaging and browsing. Would definitely buy again.

Yuki Yuki eSIM TopUp Support · 6 months ago

Thank you so much, Pablo! Thrilled it made staying connected effortless. — Yuki

M

Mateo T.

Australia · Feb 2026

✓ Verified

Bought it the night before my flight — smooth process. Topping up was straightforward when I needed more. Exactly as described — no surprises.

Anna Anna eSIM TopUp Support · 6 months ago

Thank you for the kind words, Mateo! So pleased it saved you from roaming bills. — Anna

S

Sarah L.

Vietnam · Feb 2026

✓ Verified

Worked fine but took a little while to connect at first. Activation was automatic when I arrived.

Laura 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 💜

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Budi G.

Italy · Feb 2026

✓ Verified

Honestly better than buying a local SIM at the airport. Activation was automatic when I arrived. Exactly as described — no surprises.

Mark 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 💜

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Ethan C.

Portugal · Feb 2026

✓ Verified

Bought it the night before my flight — smooth process. Topping up was straightforward when I needed more. Great experience overall.

Priya 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

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Lucas H.

Egypt · Feb 2026

✓ Verified

Saved me a fortune on my holiday. Customer support answered my question quickly.

Sophie 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

R

Ravi H.

Poland · Feb 2026

✓ Verified

Honestly better than buying a local SIM at the airport. Setup instructions in the app were clear and simple. Five stars from me.

Sara 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

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Aisha K.

Egypt · Feb 2026

✓ Verified

Great value compared to roaming charges in Japan. Customer support answered my question quickly.

Grace Grace eSIM TopUp Support · 6 months ago

Thank you so much, Aisha! So pleased it saved you from roaming bills. Enjoy your journeys! – Grace 💜

M

Mei C.

Turkey · Feb 2026

✓ Verified

Did the job without any drama. Setup instructions in the app were clear and simple. Would definitely buy again.

Yuki Yuki eSIM TopUp Support · 6 months ago

Cheers, Mei! Great to know the setup was quick and easy. – Yuki 💜

M

Max P.

Switzerland · Feb 2026

✓ Verified

Super easy to set up before I flew out. Signal held up well on trains and in rural areas. Great experience overall.

James James eSIM TopUp Support · 6 months ago

Cheers, Max! Thrilled it made staying connected effortless. – James, eSIM TopUp Support

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Lucas B.

Thailand · Feb 2026

✓ Verified

Exactly what I needed for travelling. Activation was automatic when I arrived in Japan. A must-have for international travel.

Mark 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

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Ryan P.

United Kingdom · Feb 2026

✓ Verified

Exactly what I needed for travelling in Japan. Customer support answered my question quickly. A must-have for international travel.

Priya Priya eSIM TopUp Support · 6 months ago

Cheers, Ryan! Great to know the setup was quick and easy. Come back anytime! — Priya

F

Fatima V.

Saudi Arabia · Feb 2026

✓ Verified

Did the job without any drama. Coverage was strong even outside the city.

Ken Ken eSIM TopUp Support · 6 months ago

Thanks a lot, Fatima! So pleased it saved you from roaming bills. — Ken

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Somchai C.

Egypt · Feb 2026

✓ Verified

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 Sophie eSIM TopUp Support · 6 months ago

Thanks for sharing, Somchai! So pleased it saved you from roaming bills. — Sophie

A

Anna F.

Saudi Arabia · Feb 2026

✓ Verified

Decent speeds, though slower than I expected in a few spots. Topping up was straightforward when I needed more.

Omar 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

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Pablo G. · 2 months ago

Is 5G supported or just 4G?

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Pablo C. · 2 months ago

How do I check how much data I have left?

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Grace G. · 2 months ago

Can I use this for hotspot/tethering?

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Marco C. · 3 months ago

Can I use it in nearby countries too?

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Lucas D. · 3 months ago

Great guide, the setup steps were really helpful.

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Ingrid F. · 5 months ago

Is roaming charged extra or is it all included?

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Pablo N. · 6 months ago

Does the validity start on purchase or on first use?

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Olivia N. · 6 months ago

Does this work on an iPhone 13?

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Linh T. · 8 months ago

Can I top up the same eSIM instead of buying a new one?

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Viktor P. · 9 months ago

Thanks, installed with no problems on my Samsung.

C

Carlos L. · 9 months ago

Will this keep my WhatsApp active with my home number?

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Sri N. · 1 year ago

Which networks does this connect to?