roamnessaData only
Japan
1 GB1 day
$2.99
🇯🇵 Destination guide
Best eSIM for Japan
Compare current Japan travel eSIM plans in one place, then choose the data amount and validity that fit your itinerary.
Starting from$2.99
Data options1 GB, 2 GB, 3 GB, 5 GB, 10 GB
Validity1 day, 3 days, 5 days, 7 days, 10 days
CURRENT PLANS
Japan eSIM plans
Choose the data and validity that fit this trip.
Choose filters to see the best matching eSIM.
Click any package to compare details.
No plans match those filters.
Data only
Japan
3G/4G/5G · SG
2 GB1 day
$3.99
Data only
Japan
Unlimited data1 day
$4.49
Data only
Japan
3G/4G/5G · SG
5 GB1 day
$5.99
Data only
Japan
3G/4G/5G · SG
10 GB1 day
$7.99
Data only
Japan
Unlimited data3 days
$8.99
Data only
Japan
5G
Unlimited data3 days
$15.49
Data only
Japan
Unlimited data5 days
$13.49
Data only
Japan
5G
Unlimited data5 days
$22.49
CheapestData only
Japan
3G/4G/5G · SG
1 GB7 days
$2.99
Data only
Japan
Unlimited data7 days
$18.49
Regional coverageCalling included
Japan · 10 min · 10 SMS
5G/4G
1 GB7 days
$19.99
Regional coverageCalling included
Japan · 10 min · 10 SMS
5G/4G
1 GB7 days
$19.99
Data only
Japan
5G
Unlimited data7 days
$35.99
Data only
Japan
5G
Unlimited data10 days
$45.99
Data only
Japan
3 GB15 days
$4.49
Regional coverageCalling included
Japan · 20 min · 20 SMS
5G/4G
2 GB15 days
$35.99
Regional coverageCalling included
Japan · 20 min · 20 SMS
5G/4G
2 GB15 days
$35.99
Data only
Japan
5G
Unlimited data15 days
$63.99
Best valueData only
Japan (IIJ)
3G/4G · JP
50 GB30 days
$25.99
Data only
Japan
3 GB30 days
$4.99
Regional coverageData only
Japan & South Korea
3G/4G/5G · SG
3 GB30 days
$6.49
Data only
Japan
3G/4G/5G · SG
5 GB30 days
$6.49
Data only
Japan
3G/4G/5G · SG
10 GB30 days
$10.49
Data only
Japan
3G/4G/5G · SG
20 GB30 days
$16.99
Regional coverageCalling included
Japan · 30 min · 30 SMS
5G/4G
3 GB30 days
$47.99
Regional coverageCalling included
Japan · 30 min · 30 SMS
5G/4G
3 GB30 days
$47.99
Data only
Japan
5G
Unlimited data30 days
$91.99
Regional coverageCalling included
Japan · 50 min · 50 SMS
5G/4G
5 GB60 days
$66.49
Regional coverageCalling included
Japan · 50 min · 50 SMS
5G/4G
5 GB60 days
$66.49
Regional coverageCalling included
Japan · 50 min · 50 SMS
4G/5G/3G
5 GB60 days
$66.49
Data only
Japan
50 GB90 days
$45.99
Most dataData only
Japan
100 GB180 days
$88.49
Data only
Japan
3G/4G/5G · HK
50 GB180 days
$42.99
Regional coverageCalling included
Japan · 100 min · 100 SMS
5G/4G
10 GB180 days
$105.49
Regional coverageCalling included
Japan · 100 min · 100 SMS
5G/4G
10 GB180 days
$105.49
Regional coverageCalling included
Japan · 100 min · 100 SMS
4G/5G/3G
10 GB180 days
$105.49
Regional coverageCalling included
Japan · 200 min · 200 SMS
5G/4G
20 GB365 days
$118.49
Regional coverageCalling included
Japan · 200 min · 200 SMS
5G/4G
20 GB365 days
$118.49
Regional coverageCalling included
Japan · 200 min · 200 SMS
4G/5G/3G
20 GB365 days
$118.49
PLAN WITH CLARITY
Before you buy
For city navigation, rail planning, translation, and messaging, install before departure while you have reliable Wi-Fi. Pick a regional plan only if you expect to continue beyond Japan.
COVERAGE & ROUTING
What to expect
Network, 5G availability, and speeds depend on the selected package, device, location, and local network conditions.
SETUP
Install before travel
- Open the private install link from your order email while connected to Wi-Fi.
- Add the eSIM in your phone’s mobile-data settings.
- At arrival, select it for data and enable roaming if the package requires it.
FAQ
Japan eSIM questions
When should I install my Japan eSIM?
Install it before your trip when possible. Select the Roamnessa eSIM for mobile data after arrival and enable data roaming if the package requires it.
Do Japan eSIMs include a Japanese phone number?
Most travel packages are data-only. Keep your normal line active for calls, texts, and verification codes where your carrier and device allow it.
Is a regional eSIM useful for Japan?
It can be useful if you are also visiting another covered country. Compare the included destinations, data, validity, and total price before choosing.
What is the cheapest Japan eSIM currently?
The lowest current price shown on this page is $2.99 for 1 GB and 7 days. Prices and availability can change, so confirm the selected package at checkout.
Does a Japan eSIM include 5G?
Some current packages list 5G in their network details. Network technology, speed, and availability still depend on the package, phone, location, and local network conditions.
How many GB do I need for seven days in Japan?
For seven days, maps and messaging commonly need less data than social media, video, or hotspot use. Start from your expected use, then compare the current Japan choices shown here (1 GB, 2 GB, 3 GB, 5 GB, 10 GB).
Which regional eSIMs cover Japan?
The current regional options shown on this page include Regional eSIM (193 destinations), Japan & South Korea, China mainland & Japan & South Korea. Each package can cover a different set of destinations, so open the regional plan and verify its included-country list before buying.
Need help choosing?
Check compatibility before purchase, then review setup, coverage, and refund guidance.