Best Japan eSIMs

Sony Xperia 1 VII, Xperia 1 VI, Xperia 1 V, Xperia 5 V, Xperia 10 VI, Xperia 10 V, Xperia 10 IV
Sharp AQUOS R9, AQUOS sense9, AQUOS sense8, AQUOS wish4
OPPO Find X8, OPPO Reno11 A, OPPO Reno9 A, OPPO A79 5G
Xiaomi 14T, Xiaomi 14T Pro, Xiaomi 13T, Xiaomi 13T Pro
Motorola razr 50, Motorola razr 40, Motorola edge 50 pro
HUAWEI P40, HUAWEI P40 Pro, HUAWEI Mate 40 Pro
Rakuten Hand 5G, Rakuten Mini
Fairphone 5, Fairphone 4
Microsoft Surface Duo 2, Microsoft Surface Duo

If you find "Add eSIM" or "Add Cellular Plan" in your SIM settings, your device supports eSIM.

Devices must be SIM-free (unlocked) to use eSIM.

Key Features

Fast & Reliable Data Speeds
High-Speed Data with No Daily Limits
Reliable Nationwide Coverage in Japan
Tethering & Hotspot Supported
Easy eSIM Setup
Japan eSIM for Tourists
No Hidden Fees
English Support via Email

Check eSIM compatibility

Technical Details

ActivationYour eSIM is automatically activated when you arrive in Japan, according to the applicable activation date. If you delete the eSIM, you can reinstall it on the same device using the original QR code.
Hotspot & TetheringHotspot and tethering are supported. Availability may vary depending on your device and plan.
Plan DurationPlans are available with validity periods ranging from 8 to 31 days. Please check the individual plan details for the applicable validity period.
Network PartnerPowered by the NTT Docomo network.
Data PlansA variety of data allowances are available. Please check the individual plan details for the available data allowance and validity period.
CoverageReliable mobile coverage is available across Japan, including many rural areas.
Delivery TimeYour eSIM QR code and installation instructions are typically delivered by email within 5–15 minutes of purchase.
Data Usage & SpeedHigh-speed data is available up to the plan’s data allowance. Once the high-speed data allowance has been used, data speeds are reduced to 200 kbps. There are no daily data limits.
Network Speeds5G, 4G, and LTE connectivity is available in supported areas. Actual speeds may vary depending on location, device, network conditions, and other factors. Refunds are not available for issues related to network speed or performance.
Device CompatibilityCompatible with eSIM-supported smartphones and devices. Please check our compatibility list before purchase.

* Please note that eSIMs cannot be issued or delivered from Tuesday 10:00 PM to Wednesday 9:00 AM JST due to scheduled weekly maintenance by the telecom provider. Orders placed during this period will be processed after the maintenance is completed.

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Use Your Data Wherever
You Go in Japan

Stay connected with your favorite apps, from maps and messaging to streaming and social media.

Network in Japan

Stay connected across Japan with JAPAN-ON-LINE eSIM, powered by the NTT Docomo network. Enjoy fast, reliable mobile connectivity as you explore Japan, from the busiest city streets to quieter rural destinations.

JAPAN-ON-LINE vs Other Providers

Features	JAPAN-ON-LINE eSIM	Company D	Company A	Company S
Best Price/GB eSIM Japan Plan	$0.98/GB	$3.30/GB	$2.40/GB	$2.49/GB
5G Japan eSIM Data Usage	High-speed data up to the plan's allowance; no daily limit	Daily data usage limit	Daily data usage limit	Daily data usage limit
Dedicated Network Providers	NTT Docomo	Varies / Shared	Varies / Shared	Varies / Shared
Japan eSIM Daily Speed Limits	No daily throttling; 200kbps after the plan's allowance	Throttled speeds; 200kbps with excessive use	Throttled speeds; 100kbps or lower.	Throttled speeds; 128kbps with excessive use.
eSIM Japan Plan Duration	8 to 31 days, depending on the plan	Varied duration	Varied duration	Varied duration
Japan eSIM Tethering & Hotspot	Supported; no daily restrictions	Supported	Limited; plan dependent, restrictions may apply	Limited; restrictions may apply

Why choose JAPAN-ON-LINE eSIM?

Fast 5G, 4G, and LTE Speeds

Enjoy fast, reliable mobile connectivity on the NTT Docomo network. Actual speeds may vary depending on your location, device, and network conditions.

Reliable Nationwide Coverage

Stay connected across Japan on the NTT Docomo network, including many rural areas.

Easy eSIM Setup

Receive your eSIM QR code by email within 5–15 minutes of purchase. Install it before your trip and get connected when you arrive in Japan.

Tethering & Hotspot Support

Share your mobile connection with other devices using hotspot and tethering.

English & Japanese Support

Get help from our support team by email in English or Japanese.

No Hidden Fees

Enjoy transparent, tax-inclusive pricing with no unexpected charges.

Get your eSIM

Reviews for JAPAN-ON-LINE eSIM

★★★★★

I will just be buying JAPAN-ON-LINE eSIM every time I go to Japan

Great eSIM. I used to buy the portable wifi at the airport and have to go through the hassle of getting it at the airport and returning it. Now I will just be buying JAPAN-ON-LINE eSIM every time I go to Japan. Can’t recommend it enough.

— Gordon W.

Frequently
Asked Questions

Find helpful answers to your questions.

When will I receive my JAPAN-ON-LINE eSIM?

You should receive your eSIM details by email within 5–15 minutes of purchase. If you don’t receive the email right away, please check your spam and promotions folders. If you still haven’t received your eSIM within 24 hours, please contact us via email, and we’ll be happy to help.

How do I activate the JAPAN-ON-LINE eSIM?

After purchasing your eSIM, you’ll receive an email containing a QR code, an activation code, and instructions for installing your eSIM. Follow the instructions to install your eSIM before your trip, then connect to the network after you arrive in Japan.

Do I need to unlock my phone to use the JAPAN-ON-LINE eSIM?

Yes. An unlocked (SIM-free) phone with eSIM compatibility is required. Check your device settings to make sure your phone is unlocked. If your device is SIM-locked, please contact your carrier to have it unlocked before your trip.

How can I check if my device supports eSIM?

Most newer devices support eSIM, but compatibility varies by model and region. You can check your device settings for an option such as “Add eSIM” or look for an additional IMEI number. You can also check our eSIM compatibility list.

What should I do with my eSIM after my trip to Japan?

Nothing is required. Once you use up your data allowance or your plan expires, the data service will automatically stop. You can then remove the eSIM from your device if you no longer need it.

How long does my JAPAN-ON-LINE eSIM plan last?

JAPAN-ON-LINE eSIM plans are available with different validity periods, ranging from 8 to 31 days. Please check the plan details before purchase.

Are there any additional charges or hidden fees associated with JAPAN-ON-LINE eSIM?

None. Enjoy your trip to Japan without worrying about hidden fees or unexpected charges.

See more FAQs

30GB Data

50GB Data

100GB Data

Is My Device eSIM Compatible?