Feb 2026
Worked perfectly in Japan
Connected the moment I landed at Narita. No hunting for a SIM card, no queues. Signal was strong even in rural areas. Will use Wanderly for every trip from now on.
Wanderly traveller Verified purchase
500MB free in Japan — first-time users, claimed in the Wanderly app. No card.
Choose your package
Start with a travel style or fine-tune the sliders.
10 GB
30 days
Total plan price
$7.99USD
Price per GB
$0.80
10 GB30 days3G/4G/5G
- Coverage
- Single country
- Plan type
- Data only
- Top-up
- Available
- Activation
- On network connection
Available packages
7 days
15 days
30 days
90 days
180 days
365 days
What's Included
Instant email delivery
QR code activation
24/7 customer support
No hidden fees
Data-only eSIM
Works with iPhone & Android
Easy installation guide
Refund eligible
Traveller reviews for Japan
1 verified reviewJapan eSIM plans at a glance
Wanderly lists 52 fixed-data Japan plans, ranging from 1GB up to 50GB over 7 to 365 days. Prices start at $1.99, and the lowest cost per gigabyte is $0.47/GB on the 50GB 30-day plan.
Unlimited day-passes are also available from $1.99 per day, billed per day rather than per gigabyte. All 68 Japan plans can be topped up without reinstalling the eSIM.
Every plan is data-only and installs from a QR code, so your home number stays active on its own line. Validity starts when the eSIM first connects to a network in Japan, not at purchase, which means you can install before you fly.
🇯🇵 About eSIMs in Japan
Japan runs on three tier-1 carriers — NTT Docomo, SoftBank and au (KDDI) — and coverage is genuinely excellent across the country. Wanderly Japan eSIM plans connect to Docomo or SoftBank, giving you strong 4G/5G in Tokyo, Osaka and Kyoto, and continuous signal on the Shinkansen and rural Hokkaido routes where budget carriers struggle.
Most travelers underestimate how much data Japan actually uses: Google Translate photo mode, JR route lookups, and Google Maps for the subway maze all burn through data quickly. For a 7-day trip we usually recommend 5–10 GB; for two weeks with heavy navigation, 15–20 GB. The airport SIM kiosks at Narita and Haneda are convenient but consistently cost 2–3× more than an eSIM you install before you land.
Everything provisions in about 90 seconds by QR code. You keep your home number for iMessage and WhatsApp on your primary line, and switch data to the Japan eSIM the moment you touch down.
How to activate your eSIM in Japan
- 1Buy before you flyPurchase your Japan eSIM at home while you have reliable Wi-Fi. You will receive the QR code by email in under a minute.
- 2Install the eSIMOn iPhone: Settings → Cellular → Add eSIM → Scan QR. On Android: Settings → Network & internet → SIMs → Add eSIM. Label it ‘Japan’ so it is easy to find.
- 3Land and switch dataAfter landing at Narita, Haneda or Kansai, turn on airplane mode, then off. Set Cellular Data to your Japan eSIM and turn on Data Roaming (this is normal for eSIMs — you are not billed roaming).
- 4Test on the platformLoad Google Maps before leaving the airport. If you see LTE/5G and a map loads, you are ready. Keep your primary line for calls and iMessage.
Japan eSIM FAQ
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