5 GB
$6.99
30 days
- Network
- 3G/4G/5G
- Networks
- NTT docomo, Rakuten Mobile, KDDI/au
- Activation
- Starts on first connection
Top-up available
Japan eSIM
Prepaid mobile data for Japan. Instant delivery, no roaming charges.
Stay online in Japan without roaming fees. Choose a prepaid data plan from 5 GB to 20 GB, valid 30 days, starting at $6.99. Your QR code is delivered instantly after purchase.
- Instant QR code delivery
- Hotspot / tethering allowed
- Keep your regular number for calls
Japan data plans
10 GB
$10.99
30 days
- Network
- 3G/4G/5G
- Networks
- NTT docomo, Rakuten Mobile, KDDI/au
- Activation
- Starts on first connection
Top-up available
20 GB
$17.99
30 days
- Network
- 3G/4G/5G
- Networks
- NTT docomo, Rakuten Mobile, KDDI/au
- Activation
- Starts on first connection
Top-up available
Visiting more countries?
The Japan and South Korea eSIM covers 2 countries: 10 GB for $22.99, valid 30 days.
Japan eSIM at a glance
| Price from | $6.99 |
|---|---|
| Plans available | 3 |
| Data options | 5 GB – 20 GB |
| Validity | 30 days |
| Networks | NTT docomo, Rakuten Mobile, KDDI/au, and SoftBank |
| Network type | 4G/5G |
| Hotspot / tethering | Yes |
| Activation | When you connect at your destination |
| Delivery | Instant, by QR code |
Japan eSIM: frequently asked questions
How much does an eSIM for Japan cost?
Prepaid Japan eSIM plans on Simsiz start at $6.99. Choose from 5 GB to 20 GB, valid 30 days, so you only pay for the data you need.
Which mobile networks does the Japan eSIM use?
The Japan eSIM connects to local networks including NTT docomo, Rakuten Mobile, KDDI/au, and SoftBank, with 4G/5G coverage. Your phone automatically picks the strongest available network.
Does the Japan eSIM support 5G?
Yes. Selected Japan plans support 5G where the local network offers it, and fall back to 4G/LTE elsewhere.
Can I share data from the Japan eSIM with a hotspot?
Yes. You can use personal hotspot / tethering to share your Japan eSIM data with a laptop or other devices.
When should I install my Japan eSIM?
Install it before you travel while you're on Wi-Fi. Most plans only start counting days when the eSIM first connects to a network in Japan, so installing early doesn't waste validity.
Will I keep my phone number?
Yes. Your regular SIM stays active for calls and SMS while the eSIM handles mobile data, so you can still receive verification codes from your bank.
