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 usually delivered by email within about 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, usually within about 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 QR code?

Your eSIM QR code is usually sent by email within about 15 minutes of purchase, to the email address you used at checkout. The email also includes the APN settings you need after installing.

If it has not arrived, please check your spam and promotions folders. Your QR code is also available in your account at any time.

Orders placed during scheduled maintenance (Tuesday 10:00 PM to Wednesday 9:00 AM JST) will be processed after maintenance ends.

If it still has not arrived 1 hour after your purchase (outside the Tuesday-night maintenance window), contact us at support@japan-on-line-esim.com with your order number and we will sort it out.

How do I install my eSIM?

Install over Wi-Fi with your QR code (or the activation code on Android). On Android, then set the APN to ppsim.jp. Full iPhone and Android steps.

Read the full answer →

Which APN settings do I need?

APN: ppsim.jp — with the username and password left blank. Needed on Android; on an iPhone, only for Personal Hotspot.

Read the full answer →

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

Plans run from 8 to 31 days depending on the one you choose — the exact length is shown on every plan before you buy.

Your days start counting the first time your eSIM connects to the Japanese network, which is normally the moment you land and switch the line on. Buying early or installing early does not use up any of your days.

The day you first go online counts as day 1.
Days are whole calendar days, so an 8-day plan ends at the end of your 8th day.

If you have not used the eSIM at all, the plan starts by itself on day 45 after purchase — so please buy within about six weeks of your trip.

What happens if I use up all my data?

Your connection does not stop. Once the high-speed allowance is used up, speeds are reduced to a maximum of 200kbps and you can keep using the eSIM until the end of your validity period.

At 200kbps, messaging and simple maps still work, but video and large downloads will be slow. There are no daily data limits, so you can use your allowance at whatever pace suits your trip.

If you need full speed again before your trip ends, you can buy another eSIM at any time.

Are there any additional charges or hidden fees?

None. The price shown at checkout is everything you pay — there is no shipping, no activation fee, no deposit and no contract.

One-off eSIM plans do not renew automatically, so you will never be charged again unless you choose to buy another eSIM. Going over your data allowance does not cost anything either; your speed is simply reduced to 200kbps.

View all FAQs

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Is My Device eSIM Compatible?