Who is the Long-Term Japan eSIM | Study & Business Travel for?

Compare long-term Japan eSIM plans for study abroad, business, and extended stays. Choose daily, prepaid, or unlimited data for 20 days or longer.

How do I install this Japan eSIM?

After payment, open the QR code from your email or account. Add a new eSIM in your phone's cellular settings, scan the code, and enable the plan when you need data.

How quickly is the eSIM delivered?

The QR code is normally delivered by email within about five minutes after checkout.

Can I return or exchange the plan?

Eligibility depends on whether the digital eSIM has been installed or activated. Review the Jeko eSIM refund policy before purchase.

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Plan information

FUP

Fair Use Policy (FUP): Information: Fair-use policies (FUP) vary by carrier.

Activation reminder

Note

We recommend installing and setting up the eSIM before departure, then activating it after arrival.

View activation guide

Long-Term Japan eSIM for Study & Business

In stock4.9(247 reviews)

Select a plan

Looking for a Japan unlimited eSIM on native Docomo with a Japan IP? DOCOMO (IIJ) unlimited uses the Docomo network and a Japan IP with unlimited high-speed data—ideal if you want Docomo coverage and can set APN manually.
Why choose DOCOMO unlimited?
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Easiest path: All-day data without tracking allowance; native Japan IP (not China/Hong Kong egress) for smoother local services.
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Unlimited high speed: Unlimited High Speed; actual speed depends on location and network conditions.
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Manual APN required: Set vmobile.jp for all durations (you will be reminded before purchase).
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Hotspot & popular apps: Hotspot, ChatGPT, TikTok, Gemini, and more are supported.
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Who should choose / switch: Choose this for Docomo coverage; if you do not want manual APN, switch to "AU KDDI true unlimited" or "AU KDDI unlimited"; for a fixed total, switch to "DOCOMO total-data"; for a daily reset, switch to "IIJ Docomo daily".
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Activation tip: Set APN in Taiwan first; activate when you connect in Japan.

Real-world experience

Urban speed tests commonly reach tens of Mbps. Without setting vmobile.jp manually, you may have signal but no data. For reference only.

Choose your plan

Duration

Need a different duration? View all plans, including shorter durations

Data allowance

Carrier

Japan IP

Native eSIM

IIJ Docomo 4G/LTE

unlimited (actual speed depends on local conditions)

Supports: Hotspot sharing, ChatGPT, TikTok

Quantity

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Long-Term Japan eSIM for Study & Business

Plans for 20 days or longer | Daily, prepaid, and unlimited data options

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Travel partners’ eSIM speed tests

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Service & assurance

View member offers

Fast digital delivery
Your eSIM QR code is delivered by email after purchase
Clear refund policy
Eligibility depends on installation and activation status
Reliable networks
Service through established mobile network operators
Customer support
Get assistance through official LINE or WhatsApp support

Payment methods

VisaMastercardApple PayLINE PayNewebPay

Japan network coverage guide

Check the selected carrier's coverage before purchasing your eSIM. Reception is generally strongest in major cities and along main transport routes. Coverage may be weaker in remote areas, mountains, ski resorts, islands, underground spaces, and large buildings.

Japan mobile network coverage heatmap preview — Open the preview above to explore the nPerf Japan coverage map. Denser areas generally indicate more reported coverage. Remote and mountainous areas may have fewer reports. Use the carrier links below to check the network included with your plan.

Mobile carrier overview

Select a carrier to open its nPerf coverage map.

Coverage resources

Coverage maps are provided by carriers and third parties and may change without notice. They are for travel planning only and do not guarantee speed or signal strength at a specific location. Your actual network depends on the selected eSIM plan.

About Long-Term Japan eSIM for Study & Business

Plan details

Coverage

Cities and travel destinations throughout Japan, including Tokyo, Kyoto, Hiroshima, the Kanto region, Nagasaki, and Osaka.

Carrier

IIJ（Docomo）LTE

Speed

4G/LTE; unlimited high-speed data (LTE only, no 5G)

Plan type

Data only - unlimited (local network)

Tethering / hotspot

Supported

Phone number

None

Calls

Not supported; calls are available only through apps using internet calling (VoIP).

SMS

None

eKYC (identity verification)

Not required

Delivery

The eSIM QR code will be emailed to you within a few minutes after payment is completed.

Data routing

Local (Japan IP)

Top-up option

None

Validity policy

The validity period starts immediately when the eSIM is downloaded to your device.Install the eSIM only when you are ready to use it.

Other information

APN setup

Manually set the APN to vmobile.jp before you can access the internet in Japan.

Overview

Introducing the jeko Japan Docomo eSIM (IIJ), a reliable travel companion for staying connected. This data-only plan provides a native Japan IP and connects without enabling data roaming, ideal for exploring Tokyo, sharing travel updates, or keeping in touch with friends and family.

Note:This plan requires manual APN setup (vmobile.jp). If you prefer not to configure it manually, consider AU (KDDI) or another Japan eSIM.

Note:According to the carrier, unlimited plans have no data cap under normal use. Some users report that heavy use may result in reduced speeds (commonly around 10 GB per day); normal speeds generally return automatically after the daily usage counter resets. Thank you for your understanding.

Which Japan eSIM is best for you?

Product	Carrier	Best for	Benefits and notes
Japan eSIM AU (KDDI) - Unlimited	KDDI single network 5G supported Japan IP Unlimited	Streaming enthusiasts Gamers Heavy data users	Connect to the local KDDI (au) network for a fast, stable connection with a Japan IP. Enjoy unlimited high-speed 5G/4G data (actual speed depends on local conditions). Compatible with apps such as TikTok, ChatGPT, and Google, as well as Japan-only apps such as TVer and U-NEXT. In rare cases, manual APN setup may be required. See AU unlimited without intentional throttling。
Japan eSIM 5G SoftBank / KDDI	Dual SoftBank/KDDI networks	Multi-city travel Users who need network stability	Extensive LTE/5G coverage throughout Japan. Dual-network switching for maximum signal stability. Enjoy a consistent high-speed LTE/5G connection. Suitable for long-term use, with plans of up to 60 days. Cannot access TikTok, ChatGPT, or Japan-only apps such as TVer and U-NEXT.
Japan eSIM IIJ NTT Docomo	Docomo with Japan IP	Access Japan-only content	Includes a genuine low-latency Japan IP address. Full access to TikTok, ChatGPT, and Japan-only apps such as TVer and U-NEXT. Unlimited data at full speed (actual speed depends on local conditions). Limited to the 4G/LTE network; 5G is not supported. Manual APN setup is required (vmobile.jp).

Plan highlights

Network: Docomo (via IIJ), 4G/LTE only; 5G is not supported
Native Japan IP; manual APN required: vmobile.jp
Validity: starts immediately upon download/installation on the device; install only when you are ready to use it
Data: unlimited; heavy use may trigger reduced speeds under the fair-use policy
Data only: no phone number, traditional calls, or SMS; hotspot, TikTok, ChatGPT, and local apps are supported

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