# Japan eSIM: prices and plans

Inbox eSIM sells a Japan travel eSIM from $2.90; 5 GB for 30 days is $5.90. Data only, no app, no account: the QR arrives by email.

Page: https://inboxesim.com/japan

## Plans

| Data | Validity | Price (USD) | Buy |
|---|---|---|---|
| 1 GB | 7 days | $2.90 | https://inboxesim.com/japan?fare=hook |
| 3 GB | 30 days | $3.90 | https://inboxesim.com/japan?fare=light |
| 5 GB | 30 days | $5.90 | https://inboxesim.com/japan?fare=mid |
| 10 GB | 30 days | $9.90 | https://inboxesim.com/japan?fare=fat |
| 20 GB | 30 days | $15.90 | https://inboxesim.com/japan?fare=big |
| 50 GB | 30 days | $30.90 | https://inboxesim.com/japan?fare=jumbo |

Day Pass (3 GB a day at full speed, then 1 Mbps):

| Days | Price (USD) | Buy |
|---|---|---|
| 3 | $9.90 | https://inboxesim.com/japan?pass=3 |
| 5 | $14.90 | https://inboxesim.com/japan?pass=5 |
| 7 | $19.90 | https://inboxesim.com/japan?pass=7 |
| 10 | $27.90 | https://inboxesim.com/japan?pass=10 |
| 15 | $40.90 | https://inboxesim.com/japan?pass=15 |

## Details

- Speed: 3G/4G/5G
- Networks: NTT docomo (5G), Rakuten Mobile (5G), KDDI/au (5G), SoftBank (5G)
- Internet exit: HK
- Hotspot: Usually allowed. The host network can still cap it.
- Validity starts: First attach to a covered network
- Top-ups: available on this pack

## Before you land

Install at home on Wi-Fi, then switch the line on when you land. If you are weighing a rental router, see [eSIM or pocket Wi-Fi](https://inboxesim.com/guides/japan-esim-vs-pocket-wifi).
- Narita has free Wi-Fi (FreeWiFi-NARITA) in every terminal: accept the terms on the portal, no setup needed. (source: Narita Airport, https://www.narita-airport.jp/en/service/internet/power-outlet/)
- Haneda's free network is HANEDA-FREE-WIFI; it does not work inside shops and can be patchy in places. (source: Haneda Airport, https://tokyo-haneda.com/en/service/facilities/wireless_lan.html)
- Kansai Airport Wi-Fi is free with no sign-up (#AirportFreeWiFi-Kansai). (source: Kansai Airport, https://www.kansai-airport.or.jp/en/service/internet/free-wifi)
- NTT docomo closed its 3G network on 31 March 2026, so 3G-only phones no longer connect on docomo. (source: NTT docomo, https://www.docomo.ne.jp/info/3g_closed/)
- SoftBank's free visitor Wi-Fi asks for a mobile phone number to register, so a data-only eSIM alone may not qualify. (source: SoftBank, https://www.softbank.jp/en/mobile/special/freewifi/en/)
- Your phone must be unlocked to use a Japanese SIM or eSIM. (source: Japan National Tourism Organization, https://www.japan.travel/en/plan/wifi-and-connectivity/)

## Questions

### How much is the Japan eSIM?

From $2.90 in USD, and the price on this page is the price you pay. Sizes run from the 1 GB pack up; pick one in the list above.

### When does the Japan plan start?

First attach to a covered network. Install on Wi-Fi before you fly. After you land, turn data roaming on for this line.

### Can I hotspot in Japan?

Usually allowed. The host network can still cap it.

### Which networks in Japan?

NTT docomo + Rakuten Mobile + KDDI/au. Your phone joins whichever of these is strongest where you are.

### Is this 5G in Japan?

This pack runs on 3G/4G/5G. You get 5G where the local network offers it to visitors, otherwise 4G.

### Do I get a phone number in Japan?

Data only · no voice · no SMS. Keep the home SIM for calls and SMS.

### What APN do I use in Japan?

Automatic unless the QR mail names one

### Can I use this Japan eSIM in another country?

No. This pack is Japan. A new country is a new QR. Keep this one if you return.

### Can I top up the Japan plan?

Same profile, same coverage. Extra GB is a top-up, not a new QR.

### How long do I have to install the Japan eSIM?

Start using within 180 days of purchase. After that an unused pack can expire. Scan on Wi-Fi before you fly.

### What if I buy the wrong plan?

QR not scanned and not on the phone? Email within 30 days of issue. We cancel and refund. Installed? Buy the right country and keep this QR for later.

## About Inbox eSIM

- Inbox eSIM sells prepaid, data-only travel eSIMs online: no app and no account.
- After payment the QR code and a one-tap install link (iPhone and Android) arrive by email in about a minute.
- Prices are in USD, the same for everyone; card, Apple Pay and Google Pay through Stripe, payable in the buyer's own currency.
- Plans: fixed GB packs from 1 GB to 50 GB, and a Day Pass in many countries (3 GB a day at full speed, then 1 Mbps). Nothing is sold as unlimited.
- Refund: full refund to the card if the eSIM is unused and not installed, within 30 days.
- Your home number keeps working for calls and SMS; the eSIM adds data only (no phone number).
- Support by email at hello@inboxesim.com, 24/7.
- Operated by White Cats Software, LLC (Delaware, USA).