Compare the best eSIM plans for Japan
Internet from the moment you land in Japan
- Instant activation
- iPhone and Android compatible
- From $0.74
- 4600+ plans compared
$0.74
Cheapest plan
4600+
Japan plans compared
53+
Providers available
5G
Network supported
Best eSIM deals for Japan
See all offers →eSIM for Japan at a glance
Average price
12 €
For 5 GB / 30 days
Plan duration
1 to 30+ days
Depending on the plan
Local networks
NTT Docomo, SoftBank, KDDI au
4G / 5G
VPN needed?
No
All Western services work normally
Hotspot tethering
Available
On most plans
Compatibility
iPhone XS+ / Android 8.0+
Check your device
Internet in Japan: everything you need to know
Japan shows an internet penetration rate of around 83% and one of the most reliable mobile ecosystems in the world (source: ITU DataHub, 2024). 4G LTE covers virtually all populated areas including rural zones and Shinkansen lines, and 5G is rolling out fast in major cities. A Japan eSIM gets you onto this network the moment you land at Narita, Haneda or Kansai, with no card swap and no reliance on hotel wifi.
- ●4G/5G coverage in every major city and tourist destination (Tokyo, Osaka, Kyoto, Hokkaido, Okinawa).
- ●Average mobile download speeds around 70 to 90 Mbps per Ookla (Q1 2025).
- ●Perfect for transport apps (Google Maps, Hyperdia, JR Pass) and translation (DeepL, Google Translate).
- ●Shinkansen and urban metros fully covered, tunnels included.
Sources: Internet Society Pulse — Japan, ITU DataHub — Japan statistics, Ookla Speedtest Global Index
Device compatibility
eSIM is built into every iPhone XS and later, as well as Samsung Galaxy S20+, Google Pixel 3a+ and most high-end Motorola, Oppo, Sony and Xiaomi models.
Not sure about your device? Check compatibility here.
How to install your eSIM for Japan
- 1. Compare offers on https://www.datadopt.com/en/compare/jp
- 2. Browse our partners' eSIM offers and choose the data volume and duration that fit your trip.
- 3. Purchase the eSIM plan that best fits your needs on our partner's site.
- 4. Receive a QR code by email after purchase.
- 5. Before you leave or during your stay, add the eSIM to your smartphone (Note: a stable Wi-Fi connection may be required during this step.)
- 5.1. On iPhone: Settings > Mobile Data > Add Plan > Scan the QR code
- 5.2. On Android: Settings > Connections > SIM card manager > Add a mobile plan
- 6. Once you arrive, turn on the data of your eSIM and enjoy reliable internet in Japan.
Frequently asked questions
Do eSIMs really work in Japan?
Yes. The vast majority of international eSIMs connect to NTT Docomo or SoftBank the moment you land. Japan offers one of the best mobile experiences in the world, including on the Shinkansen and in the metro.
Do I need a VPN in Japan?
No, no Western service is restricted in Japan: Google, WhatsApp, Instagram, X, YouTube all work normally.
Can I keep my home phone number?
Yes. The Japan eSIM installs alongside your main line. You keep your home number for SMS and calls while using the eSIM for mobile data in Japan.
What's the best eSIM for Tokyo or Osaka?
Both cities have full 5G coverage. For a short trip (≤ 7 days) a 3 to 5 GB plan is enough. For 2 to 3 weeks with a busy itinerary (maps, translation, photos), target 10 to 20 GB.
Do IC payments (Suica, Pasmo) need a Japanese SIM?
No. Suica/Pasmo cards and their mobile versions (Apple Wallet) work independently of the cellular network in use. They rely on NFC and a rechargeable balance.
Can I share my connection with other devices?
Most Japan eSIM plans allow hotspot tethering. The detail appears on each plan page on Datadopt.
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Ready to stay connected in Japan?
Compare the best eSIM offers and enjoy data the moment you arrive, at the best price.