eSIM for Japan

We'll send you installation instructions immediately after purchase.

Works with all eSIM compatible devices. Click here to check compatibility.

Choose the plan thatโ€™s best for you

This eSIM can be used for data throughout Japan.

  • Top up at any time directly via the Roamsim app or Website.
  • The validity period starts when your eSIM connects to any supported network.
  • Amazing customer support, whenever you need it.

1 GB

7 Days

A$

2 GB

15 Days

A$

3 GB

30 Days

A$

5 GB

30 Days

A$

10 GB

30 Days

A$

20 GB

30 Days

A$

We'll send you installation instructions immediately after purchase.

Works with all eSIM compatible devices. Click here to check compatibility.

Secure payment guaranteed

Traveling to more than one country?

Get Connected in 3 Easy Steps

Select your Data Pack

Choose a prepaid data pack that suits you from 150+ Countries and Regions.

Install your eSIM

Follow the instructions provided to install your eSIM in minutes.

Activate your eSIM

Once your eSIM is activated, your device will automatically connect to a network the moment you land.

Get Connected in Minutes

Data in 150+ Countries

Affordable Prepaid Pricing

Keep your existing SIM

FAQs

1. Select the best prepaid Data Packs in over 150 Countries and Regions from the Roamsim app or Website. 2. Checkout securely and follow the installation instructions provided. 3. Once your eSIM is installed, your device will automatically connect to a network the moment you land. Track usage, Top up and more on the Roamsim app or Website. No more daily rates, No sneaky hidden fees, No more excessive roaming charges!

Most newer smartphones and tablets are eSIM compatible. Check here to see if your device is compatible.

You can check your usage and top up at any time directly from the Roamsim app or Website.

No, there are no hidden fees. The price you see at checkout is the final cost. All Roamsim eSIMs are prepaid.

Yes. A Roamsim eSim can only be installed on network unlocked phones. If you your phone is unlocked, please contact your carrier provider directly for device unlocking.

Roamsim currently offers data in 150+ countries and regions. Travelling to Multiple Countries? Get a Multi-Country Data Pack and access data in Multiple Countries using one eSIM.

An eSIM (Embedded Subscriber Identity Module) is a digital SIM that allows you to activate a cellular plan without using a physical SIM card.

No, you can keep your normal sim card in your phone and access eSIM simultaneously. To avoid roaming charges from your Telecom provider, we recommend using your eSIM for Data and turning off your Primary phone line.

Yes, you can use WhatsApp, Google Maps, FaceTime, Instagram, TikTok and any other online apps with an eSIM. A Roamsim eSIM provides you with data only, therefore any data used on your phone whilst you have an eSIM installed will be drawn from your eSIM rather than your physical sim.

Roamsim eSIMs provide data only. While you can accept make/accept calls and SMS as normal, roaming charges by your carrier will apply. To avoid potentially costly roaming charges imposed by your carrier, Roamsim suggests traditional calls and SMS are not used while outside of your home country. Roamsim eSims can be used for internet-based messaging and calling services (such as WhatsApp, iMessage, Messenger, Instagram, Facetime). These internet-based services will use the data provided on your eSIM. *Please note, Roamsim does not provide any services for Phone Calls. Data roaming chargesโ€ฏmay apply to any non-internet basedโ€ฏcall serviceโ€ฏdepending on your Primary carrier provider.โ€ฏWe recommend turning off your Primary phone line when traveling.

To top up your Roamsim eSIM with more data, simply purchase a new plan for the same country or multi-country eSIM. There's no need to reinstall your eSIM; your additional data will activate automatically once the new plan is purchased. If you want to add data for a different country or multi-country eSIM, you will need to purchase a new plan and install the new eSIM.

As a Wi-Fi connection is required for โ€œInstallationโ€, we recommend doing this 1-2 days before departing. Once you are ready to depart, we recommend โ€œActivatingโ€ your eSIM, this will ensure your Roamsim eSIM is ready to use the moment you land. The validity period of your eSIM begins once you have used data at your destination.