Japan eSIM
Prepaid mobile data for Japan, from $2.34. One payment, no subscription, installed straight onto your phone.
Prefer the app? Voyafi is on the App Store and Google Play.
Plans for Japan
Every plan below is a single payment. Most give a set amount of data over a set number of days; plans marked “per day” give a daily data allowance instead.
Short answer: Japan eSIM, 1 GB for 7 days: $2.34; 3 GB for 30 days: $3.87. Final prices in US dollars; you can install it before you fly. Daily plans from $2.47 for 1 GB per day. Networks: NTT docomo, Rakuten Mobile, KDDI/au and SoftBank; network type: 5G. Validity starts when the eSIM first connects in Japan. Data only: no phone number, calls or SMS.
Prices and networks checked: 12 November 2026
“Per day” plans have a daily data allowance, and the price shown is for 1 day of use. Some slow down to a lower speed once the day’s data is used.
Validity starts when the eSIM first connects to a network in Japan.
Buy your Japan eSIM
Prefer the app? Voyafi is on the App Store and Google Play.
Japan eSIM at a glance
Voyafi has 13 prepaid eSIM plans for Japan, with 1–50 GB of data valid for 1–180 days. The cheapest is 1 GB for 7 days at $2.34. In Japan the plans run on NTT docomo, Rakuten Mobile, KDDI/au and SoftBank. 5G is listed for all of them, where the local network supports it and your iPhone does too.
- Compare prices across destinations
- Can you get 5G with a travel eSIM?
- Can you make calls with a travel eSIM?
- How to turn on data roaming for a travel eSIM
- eSIM vs roaming vs local SIM card
- What your home operator charges abroad
- Plans
- 13
- Data
- 1–50 GB
- Validity
- 1–180 days
- Starting price
- $2.34
- Networks
- NTT docomo, Rakuten Mobile, KDDI/au and SoftBank
- Network type
- 5G
Arriving in Japan: city and airport guides
Airport Wi-Fi, the local SIM option and what to do when you land, from official sources.
Networks in Japan
Your phone connects to one of these partner networks. Which one it picks depends on where you are and on signal strength.
| Operator | Network |
|---|---|
| NTT docomo | 5G |
| Rakuten Mobile | 5G |
| KDDI/au | 5G |
| SoftBank | 5G |
5G is available on some of these networks, where the local network supports it and your phone does too.
Japan eSIM: common questions
- How much does an eSIM for Japan cost?
- Plans for Japan start at $2.34 for 1 GB valid for 7 days. The largest gives you 50 GB for 30 days at $36.55. Prices are in US dollars and are the final amount you pay.
- Which mobile networks does the Japan eSIM use?
- In Japan the plans run on NTT docomo, Rakuten Mobile, KDDI/au and SoftBank. Your phone connects to whichever is available where you are.
- Does the Japan eSIM support 5G?
- Yes. 5G is listed for NTT docomo, Rakuten Mobile, KDDI/au and SoftBank. You get it where the local network has 5G coverage and your iPhone supports 5G; elsewhere the eSIM uses the fastest network available.
- Can I use the same eSIM in other countries?
- The plans on this page work in Japan only. If your trip continues, the Asia plan covers Japan and 19 other countries on one eSIM, from $5.42.
- When does my Japan plan start?
- When the eSIM first connects to a network in Japan, not when you buy it — so you can install it at home before you travel.
- Does the Japan eSIM give me a local phone number?
- No. These plans are data-only: mobile internet, not a local phone number, and no calls or SMS. Your usual number stays on your iPhone.
- How do I buy a Japan eSIM?
- On this website or in the Voyafi app: pick Japan, choose a plan and pay once. You confirm your phone supports eSIM before you pay, then install the plan with one tap.
Regional plans that also cover Japan
Travelling on to other countries? One of these may suit the whole trip better.
More destinations on the Asia plan
These countries share a regional plan with Japan. Each also has its own single-country plans.
Before you go
Check that your phone supports eSIM and is carrier-unlocked. You confirm this before you pay.
Install the eSIM at home over Wi-Fi. Downloading an eSIM needs an internet connection.
After you land, turn on data roaming for the travel line and select it for mobile data.
These plans are data-only: mobile internet, not a local phone number.