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Japan eSIM — reviews & details

Japan 20GB 30Days (IIJ) · 20 GB · 30 days

View plan & buy — $12.30
4.5

620 reviews

5 ★ 64%
4 ★ 28%
3 ★ 7%
2 ★ 1%
1 ★ 0%

Coverage & networks

  • Japan NTT docomo 4G

Traveller reviews

R

Ryan W.

Poland · Mar 2026

✓ Verified

Exactly what I needed for travelling in Japan. Speeds were solid for maps, messaging and browsing. Made staying connected effortless.

Priya Priya GotoeSIM Support · 5 months ago

Thank you for the kind words, Ryan! So happy the Japan eSIM kept you connected. Safe travels, and see you on your next trip! — Priya

L

Lea B.

Germany · Mar 2026

✓ Verified

Bought it the night before my flight — smooth process. Data lasted the whole trip with room to spare. Telling my friends about this.

Ken Ken GotoeSIM Support · 5 months ago

Really appreciate this, Lea! Great to know the setup was quick and easy. – Ken 💜

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Pablo P.

Turkey · Mar 2026

✓ Verified

Exactly what I needed for travelling. Topping up was straightforward when I needed more.

Emma Emma GotoeSIM Support · 5 months ago

Cheers, Pablo! Great to know the setup was quick and easy. — Emma

R

Ravi S.

Switzerland · Mar 2026

✓ Verified

Installed in minutes by scanning the QR code in Japan. Speeds were solid for maps, messaging and browsing. Great experience overall.

Diego Diego GotoeSIM Support · 5 months ago

Cheers, Ravi! Thrilled it made staying connected effortless. – Diego, eSIM TopUp Support

P

Pablo D.

Poland · Feb 2026

✓ Verified

Connected the moment I landed. Speeds were solid for maps, messaging and browsing. Five stars from me.

Sara Sara GotoeSIM Support · 5 months ago

Cheers, Pablo! Delighted the speeds worked well for you. Safe travels, and see you on your next trip! – Sara, eSIM TopUp Support

A

Andre B.

Mexico · Feb 2026

✓ Verified

Honestly better than buying a local SIM at the airport. Coverage was strong even outside the city. Highly recommend for any traveller.

Emma Emma GotoeSIM Support · 5 months ago

Thanks for sharing, Andre! So happy the Japan eSIM kept you connected. — Emma

K

Kenji V.

France · Feb 2026

✓ Verified

Saved me a fortune on my holiday. Setup instructions in the app were clear and simple.

Yuki Yuki GotoeSIM Support · 6 months ago

Really appreciate this, Kenji! Great to know the setup was quick and easy. Safe travels, and see you on your next trip! – Yuki 💜

P

Pablo M.

Japan · Jan 2026

✓ Verified

Honestly better than buying a local SIM at the airport. Ran hotspot to my laptop with no issues. Exactly as described — no surprises.

James James GotoeSIM Support · 6 months ago

Thank you so much, Pablo! Great to know the setup was quick and easy. We're here whenever you travel again. — James

S

Sophia D.

Sweden · Jan 2026

✓ Verified

No more hunting for a SIM card kiosk on arrival. Activation was automatic when I arrived in Japan. Will use eSIM TopUp for my next trip for sure.

Priya Priya GotoeSIM Support · 7 months ago

Thanks a lot, Sophia! Love that you were online the moment you landed in Japan. — Priya, eSIM TopUp Support

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Louis C.

Australia · Dec 2025

✓ Verified

First time using an eSIM and it was painless in Japan. Ran hotspot to my laptop with no issues.

Grace Grace GotoeSIM Support · 7 months ago

Thank you so much, Louis! So pleased it saved you from roaming bills. – Grace 💜

S

Sophia S.

Italy · Dec 2025

✓ Verified

Bought it the night before my flight — smooth process. Activation was automatic when I arrived in Japan. Highly recommend for any traveller.

Priya Priya GotoeSIM Support · 7 months ago

Thanks for sharing, Sophia! Wonderful to hear it worked smoothly in Japan. We're here whenever you travel again. — Priya

E

Elena L.

New Zealand · Dec 2025

✓ Verified

Honestly better than buying a local SIM at the airport. Streaming and video calls worked without buffering. Five stars from me.

Ingrid Ingrid GotoeSIM Support · 7 months ago

Thank you so much, Elena! Great to know the setup was quick and easy. Wishing you many more connected adventures! – Ingrid 💜

Y

Yuki F.

United States · Dec 2025

✓ Verified

Saved me a fortune on my holiday. Streaming and video calls worked without buffering. A must-have for international travel.

Emma Emma GotoeSIM Support · 7 months ago

Thanks for sharing, Yuki! Thrilled it made staying connected effortless. Come back anytime! — Emma

I

Isabella G.

Malaysia · Dec 2025

✓ Verified

Connected the moment I landed. The QR code arrived instantly by email. Telling my friends about this.

David David GotoeSIM Support · 7 months ago

Thanks a lot, Isabella! Great to know the setup was quick and easy. Enjoy your journeys! — David, eSIM TopUp Support

A

Aisha N.

Ireland · Dec 2025

✓ Verified

Connected the moment I landed. Setup instructions in the app were clear and simple. Would definitely buy again.

Sara Sara GotoeSIM Support · 8 months ago

Cheers, Aisha! Delighted the speeds worked well for you. Wishing you many more connected adventures! – Sara 💜

Frequently asked questions

How much does the Japan eSIM cost?

The Japan 20GB 30Days (IIJ) 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

K

Katya K. · 2 months ago

Is 5G supported or just 4G?

K

Katya V. · 7 months ago

Thanks, installed with no problems on my Samsung.

B

Beatriz C. · 8 months ago

Is roaming charged extra or is it all included?

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Lea B. · 8 months ago

Will this keep my WhatsApp active with my home number?

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Kenji R. · 9 months ago

Do I need to install it before I travel or after I arrive?

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Zoe V. · 9 months ago

How do I check how much data I have left?

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Grace C. · 10 months ago

Great guide, the setup steps were really helpful.

C

Camila M. · 11 months ago

Can I use it in nearby countries too?

M

Mateo B. · 11 months ago

Which networks does this connect to?

B

Beatriz R. · 11 months ago

Does the validity start on purchase or on first use?

S

Sarah V. · 11 months ago

How long does the QR code take to arrive after payment?

T

Thomas N. · 1 year ago

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