eSIM for Japan
AsiaTokyocoverageExcellent
Compare eSIM data plans from 5 providers for Japan. Browse pricing, check which local networks each provider uses, and find the best value plan for your trip. Prices start at $3.99 for data-only plans with instant QR code activation.
From
$3.99
1GB / 7 days
Best Budget
Saily $3.99/1GB
Best Value
Saily $1.40/GB
Best Unlimited
Holafly from $19.00
Best for Long Stay
Saily 20GB/30 days
Providers
5
Calling Code
+81
Currency
Yen (JPY)
Language
Japanese
Population
125.7M
Available eSIM Plans for Japan
All plans sorted by price. 5 providers offer data plans for Japan, ranging from short 7-day passes to 30-day unlimited packages.
Filter plans
14 plans found
Saily
Excellent
1GB7 days
$3.99($3.99/GB)
Data onlyHotspot enabledApp
Airalo
Excellent
1GB7 days
$4.50($4.50/GB)
Data onlyHotspot enabledQR Code
Nomad
Excellent
1GB7 days
$5.00($5.00/GB)
Data onlyHotspot enabledQR Code
Airalo
Excellent
3GB30 days
$11.00($3.67/GB)
Data onlyHotspot enabledQR Code
Saily
Excellent
5GB30 days
$11.49($2.30/GB)
Data onlyHotspot enabledApp
Ubigi
Good
3GB30 days
$13.00($4.33/GB)
Data onlyHotspot enabledQR Code
Nomad
Excellent
5GB30 days
$15.00($3.00/GB)
Data onlyHotspot enabledQR Code
Holafly
Excellent
Unlimited7 days
$19.00
Unlimited dataNo speed capQR Code
Airalo
Excellent
10GB30 days
$25.00($2.50/GB)
Data onlyHotspot enabledQR Code
Best Value
Saily
Excellent
20GB30 days
$27.99($1.40/GB)
Data onlyHotspot enabledApp
Ubigi
Good
10GB30 days
$29.00($2.90/GB)
Data onlyHotspot enabledQR Code
Nomad
Excellent
20GB30 days
$33.00($1.65/GB)
Data onlyHotspot enabledQR Code
Holafly
Excellent
Unlimited15 days
$34.00
Unlimited dataNo speed capQR Code
Holafly
Excellent
Unlimited30 days
$47.00
Unlimited dataNo speed capQR Code
Provider Comparison for Japan
Each provider uses different local networks in Japan, resulting in different coverage quality and speeds. Here is how they compare.
Network Coverage in Japan
Japan has exceptional 4G/5G coverage even in rural areas. Most eSIM providers connect to NTT Docomo or SoftBank for reliable nationwide service.
Japan has 3 major mobile networks: NTT Docomo, SoftBank, au (KDDI). The best coverage comes from NTT Docomo, which covers 99% of the population with 4G and 5G technology.
When choosing an eSIM for Japan, pay attention to which local network the provider uses. Plans on NTT Docomo will generally offer the best experience, especially if you are traveling outside major cities. Providers using smaller networks may offer lower prices but with trade-offs in coverage and speed.
Overall Coverage Rating
Based on the best available network (NTT Docomo) with 99% population coverage
Coverage in Japan
Excellent
Interactive coverage map
Coming soon
Local Networks
NTT Docomo99%
4G5G
SoftBank97%
4G5G
au (KDDI)96%
4G5G
How to Activate an eSIM in Japan
Setting up an eSIM for Japan is straightforward. Follow these steps to get connected before or upon arrival.
- 1
Check Device Compatibility
Make sure your phone supports eSIM. Most iPhones from XS onward, Samsung Galaxy S20+, and Google Pixel 3+ are compatible. Your device must also be carrier-unlocked to use an eSIM from a third-party provider in Japan.
- 2
Choose and Purchase a Plan
Compare plans above and select the one that fits your data needs and trip length. For a typical week-long trip to Japan, we recommend at least 3-5GB. Heavy users or longer stays should consider 10GB or unlimited options.
- 3
Install the eSIM Profile
After purchase, you will receive a QR code (or app installation link). Scan the QR code from your phone's Settings > Cellular > Add eSIM. Do this while connected to WiFi, ideally before your trip. The profile downloads in under a minute.
- 4
Activate at Your Destination
When you arrive in Japan, go to Settings > Cellular and enable your eSIM line for data. Set it as the primary data line. Your phone will connect to the local NTT Docomo automatically. The plan validity timer starts at this point for most providers.
Physical SIM vs eSIM in Japan
Travelers to Japan have two options for local data: buying a physical SIM card upon arrival or using a pre-purchased eSIM. Here is how they compare.
Setup Time
eSIM
Under 5 minutes
Physical SIM
30-60 minutes
Available Before Travel
eSIM
Yes, pre-install
Physical SIM
No, buy on arrival
Keep Your Number
eSIM
Yes, dual SIM
Physical SIM
Must swap SIMs
Price Range
eSIM
From $3.99
Physical SIM
$10-30 at airport
Language Barrier
eSIM
None
Physical SIM
May need local language
Network Quality
eSIM
Same networks
Physical SIM
Same networks
Tips for Using eSIM in Japan
Download maps and content before your trip
Even with great coverage in Japan, having offline maps (Google Maps, Maps.me) saves data and works in areas with weak signal.
Monitor your data usage
Check your data usage in phone settings regularly. If you are running low, most providers let you purchase a top-up or additional plan without losing connectivity.
Choose the right network for Japan
NTT Docomo offers the best coverage in Japan. If you plan to travel outside major cities, prioritize providers that use this network.
Disable automatic updates
Turn off automatic app updates and cloud photo syncing to conserve data. These background processes can consume gigabytes without you noticing.
Test your eSIM before departure
Install the eSIM profile while on WiFi at home. Some phones let you verify the profile is correctly installed without activating the data plan, so you know everything will work when you land in Japan.
eSIM FAQ for Japan
Common questions about using eSIM in Japan. Click a question to see the answer.
The cheapest eSIM plan for Japan starts at $3.99 for 1GB over 7 days from Saily. This plan uses the NTT Docomo network and activates via their app.
Currently 5 eSIM providers offer plans for Japan: Saily, Airalo, Nomad, Ubigi, Holafly. Each provider uses different local networks, so coverage quality varies.
Yes, eSIM data plans for Japan work with all internet-based apps including WhatsApp, Instagram, Facebook, Google Maps, and more. The plans provide standard mobile data that works with any app on your phone.
Most eSIM plans for Japan do not require local registration since the provider handles this on their end. However, regulations vary, so check your provider's terms. You may need to provide passport details during purchase for some destinations.
If your data runs out, you can purchase an additional eSIM plan from the same or different provider. Your phone supports multiple eSIM profiles, so you can add a new plan without removing the expired one. Most providers also offer top-up options through their app.
NTT Docomo offers the best coverage in Japan with 99% population coverage using 4G and 5G technology. When choosing an eSIM, check which local network the provider uses for the best experience.
Yes, Japan has 5G coverage from NTT Docomo, SoftBank, au (KDDI). However, not all eSIM providers offer 5G access. Check individual plan details to confirm 5G availability with your chosen provider.
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